truffle: src/share/vm/memory/metaspace.cpp annotate

annotate src/share/vm/memory/metaspace.cpp @ 12239:8227700da288

8024751: Fix bugs in TraceMetadata Reviewed-by: jmasa, brutisso

author	stefank
date	Fri, 13 Sep 2013 22:23:48 +0200
parents	335b388c4b28
children	8c5e6482cbfc

rev	line source
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1 /*
8712 3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors coleenp parents: 8040 diff changeset	2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	4 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	7 * published by the Free Software Foundation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	8 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	13 * accompanied this code).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	14 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	18 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	21 * questions.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	22 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	23 */
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	24 #include "precompiled.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	25 #include "gc_interface/collectedHeap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	26 #include "memory/binaryTreeDictionary.hpp"
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	27 #include "memory/freeList.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	28 #include "memory/collectorPolicy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	29 #include "memory/filemap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	30 #include "memory/freeList.hpp"
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	31 #include "memory/metablock.hpp"
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	32 #include "memory/metachunk.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	33 #include "memory/metaspace.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	34 #include "memory/metaspaceShared.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	35 #include "memory/resourceArea.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 #include "memory/universe.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	37 #include "runtime/globals.hpp"
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	38 #include "runtime/java.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	39 #include "runtime/mutex.hpp"
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	40 #include "runtime/orderAccess.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	41 #include "services/memTracker.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	42 #include "utilities/copy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	43 #include "utilities/debug.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	44
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	45 typedef BinaryTreeDictionary<Metablock, FreeList> BlockTreeDictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	46 typedef BinaryTreeDictionary<Metachunk, FreeList> ChunkTreeDictionary;
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	47 // Define this macro to enable slow integrity checking of
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	48 // the free chunk lists
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	49 const bool metaspace_slow_verify = false;
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	50
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	51 // Parameters for stress mode testing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	52 const uint metadata_deallocate_a_lot_block = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	53 const uint metadata_deallocate_a_lock_chunk = 3;
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	54 size_t const allocation_from_dictionary_limit = 4 * K;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	55
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	56 MetaWord* last_allocated = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	58 size_t Metaspace::_class_metaspace_size;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	59
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	60 // Used in declarations in SpaceManager and ChunkManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	61 enum ChunkIndex {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	62 ZeroIndex = 0,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	63 SpecializedIndex = ZeroIndex,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	64 SmallIndex = SpecializedIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	65 MediumIndex = SmallIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	66 HumongousIndex = MediumIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	67 NumberOfFreeLists = 3,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	68 NumberOfInUseLists = 4
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	69 };
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	70
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	71 enum ChunkSizes { // in words.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	72 ClassSpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	73 SpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	74 ClassSmallChunk = 256,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	75 SmallChunk = 512,
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	76 ClassMediumChunk = 4 * K,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	77 MediumChunk = 8 * K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	78 HumongousChunkGranularity = 8
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	79 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	80
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	81 static ChunkIndex next_chunk_index(ChunkIndex i) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	82 assert(i < NumberOfInUseLists, "Out of bound");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83 return (ChunkIndex) (i+1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	85
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	86 // Originally _capacity_until_GC was set to MetaspaceSize here but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	87 // the default MetaspaceSize before argument processing was being
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	88 // used which was not the desired value. See the code
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	89 // in should_expand() to see how the initialization is handled
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	90 // now.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	91 size_t MetaspaceGC::_capacity_until_GC = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92 bool MetaspaceGC::_expand_after_GC = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	93 uint MetaspaceGC::_shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	94 bool MetaspaceGC::_should_concurrent_collect = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	95
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	96 // Blocks of space for metadata are allocated out of Metachunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	97 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98 // Metachunk are allocated out of MetadataVirtualspaces and once
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 // allocated there is no explicit link between a Metachunk and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 // the MetadataVirtualspaces from which it was allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 // Each SpaceManager maintains a
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103 // list of the chunks it is using and the current chunk. The current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	104 // chunk is the chunk from which allocations are done. Space freed in
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	105 // a chunk is placed on the free list of blocks (BlockFreelist) and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	106 // reused from there.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	107
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	108 typedef class FreeList<Metachunk> ChunkList;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110 // Manages the global free lists of chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 // Has three lists of free chunks, and a total size and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112 // count that includes all three
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	113
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 class ChunkManager VALUE_OBJ_CLASS_SPEC {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 // Free list of chunks of different sizes.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	117 // SpecializedChunk
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	118 // SmallChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	119 // MediumChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	120 // HumongousChunk
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	121 ChunkList _free_chunks[NumberOfFreeLists];
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	122
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	123
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	124 // HumongousChunk
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	125 ChunkTreeDictionary _humongous_dictionary;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	126
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	127 // ChunkManager in all lists of this type
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	128 size_t _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	129 size_t _free_chunks_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	130
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	131 void dec_free_chunks_total(size_t v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	132 assert(_free_chunks_count > 0 &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	133 _free_chunks_total > 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	134 "About to go negative");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	135 Atomic::add_ptr(-1, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	136 jlong minus_v = (jlong) - (jlong) v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	137 Atomic::add_ptr(minus_v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	138 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	140 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	141
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	142 size_t sum_free_chunks();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	143 size_t sum_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	144
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	145 void locked_verify_free_chunks_total();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	146 void slow_locked_verify_free_chunks_total() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	147 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	148 locked_verify_free_chunks_total();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	149 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	150 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	151 void locked_verify_free_chunks_count();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	152 void slow_locked_verify_free_chunks_count() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	153 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	154 locked_verify_free_chunks_count();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	155 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	156 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	157 void verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	158
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	159 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	160
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	161 ChunkManager() : _free_chunks_total(0), _free_chunks_count(0) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	162
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	163 // add or delete (return) a chunk to the global freelist.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	164 Metachunk* chunk_freelist_allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	165 void chunk_freelist_deallocate(Metachunk* chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	166
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	167 // Map a size to a list index assuming that there are lists
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	168 // for special, small, medium, and humongous chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	169 static ChunkIndex list_index(size_t size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	170
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	171 // Remove the chunk from its freelist. It is
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	172 // expected to be on one of the _free_chunks[] lists.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	173 void remove_chunk(Metachunk* chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	174
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	175 // Add the simple linked list of chunks to the freelist of chunks
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	176 // of type index.
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	177 void return_chunks(ChunkIndex index, Metachunk* chunks);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	178
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	179 // Total of the space in the free chunks list
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	180 size_t free_chunks_total_words();
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	181 size_t free_chunks_total_bytes();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	182
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	183 // Number of chunks in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	184 size_t free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	185
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	186 void inc_free_chunks_total(size_t v, size_t count = 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	187 Atomic::add_ptr(count, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	188 Atomic::add_ptr(v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	189 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	190 ChunkTreeDictionary* humongous_dictionary() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	191 return &_humongous_dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	192 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	193
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	194 ChunkList* free_chunks(ChunkIndex index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	196 // Returns the list for the given chunk word size.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	197 ChunkList* find_free_chunks_list(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	198
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	199 // Add and remove from a list by size. Selects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	200 // list based on size of chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	201 void free_chunks_put(Metachunk* chuck);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	202 Metachunk* free_chunks_get(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	203
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	204 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	205 void verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	206 void slow_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	207 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	208 verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	209 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	210 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	211 void locked_verify();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	212 void slow_locked_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	213 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	214 locked_verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	215 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	216 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	217 void verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	218
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	219 void locked_print_free_chunks(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	220 void locked_print_sum_free_chunks(outputStream* st);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	221
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	222 void print_on(outputStream* st);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	223 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	224
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	225 // Used to manage the free list of Metablocks (a block corresponds
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	226 // to the allocation of a quantum of metadata).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	227 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	228 BlockTreeDictionary* _dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	229 static Metablock* initialize_free_chunk(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	230
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	231 // Only allocate and split from freelist if the size of the allocation
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	232 // is at least 1/4th the size of the available block.
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	233 const static int WasteMultiplier = 4;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	234
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	235 // Accessors
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	236 BlockTreeDictionary* dictionary() const { return _dictionary; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	237
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	238 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	239 BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	240 ~BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242 // Get and return a block to the free list
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	243 MetaWord* get_block(size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	244 void return_block(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	245
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	246 size_t total_size() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	247 if (dictionary() == NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248 return 0;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	249 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	250 return dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	252 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	253
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	254 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	255 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	256
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	257 class VirtualSpaceNode : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	258 friend class VirtualSpaceList;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	259
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 // Link to next VirtualSpaceNode
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	261 VirtualSpaceNode* _next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	262
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	263 // total in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	264 MemRegion _reserved;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265 ReservedSpace _rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266 VirtualSpace _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	267 MetaWord* _top;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	268 // count of chunks contained in this VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	269 uintx _container_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	270
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	271 // Convenience functions to access the _virtual_space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	272 char* low() const { return virtual_space()->low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	273 char* high() const { return virtual_space()->high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	274
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	275 // The first Metachunk will be allocated at the bottom of the
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	276 // VirtualSpace
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	277 Metachunk* first_chunk() { return (Metachunk*) bottom(); }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	278
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	279 void inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	280 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	281 uint container_count_slow();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	282 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	283
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	284 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	285
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	286 VirtualSpaceNode(size_t byte_size);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	287 VirtualSpaceNode(ReservedSpace rs) : _top(NULL), _next(NULL), _rs(rs), _container_count(0) {}
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288 ~VirtualSpaceNode();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	290 // Convenience functions for logical bottom and end
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	291 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	292 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	293
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	294 size_t reserved_words() const { return _virtual_space.reserved_size() / BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	295 size_t expanded_words() const { return _virtual_space.committed_size() / BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	296 size_t committed_words() const { return _virtual_space.actual_committed_size() / BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	297
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	298 // address of next available space in _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	299 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	300 VirtualSpaceNode* next() { return _next; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	301 void set_next(VirtualSpaceNode* v) { _next = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	302
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	303 void set_reserved(MemRegion const v) { _reserved = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	304 void set_top(MetaWord* v) { _top = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	305
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	306 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	307 MemRegion* reserved() { return &_reserved; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	308 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	309
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	310 // Returns true if "word_size" is available in the VirtualSpace
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	311 bool is_available(size_t word_size) { return _top + word_size <= end(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	312
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	313 MetaWord* top() const { return _top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	314 void inc_top(size_t word_size) { _top += word_size; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	315
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	316 uintx container_count() { return _container_count; }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	317 void dec_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	318 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	319 void verify_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	320 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	321
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	322 // used and capacity in this single entry in the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	323 size_t used_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	324 size_t capacity_words_in_vs() const;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	325 size_t free_words_in_vs() const;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	326
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	327 bool initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	328
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	329 // get space from the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	330 Metachunk* take_from_committed(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	331
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	332 // Allocate a chunk from the virtual space and return it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	333 Metachunk* get_chunk_vs(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	334
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	335 // Expands/shrinks the committed space in a virtual space. Delegates
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	336 // to Virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	337 bool expand_by(size_t words, bool pre_touch = false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	338
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	339 // In preparation for deleting this node, remove all the chunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	340 // in the node from any freelist.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	341 void purge(ChunkManager* chunk_manager);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	342
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	343 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	344 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	345 void mangle();
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	346 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	347
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	348 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	349 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	350
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	351 // byte_size is the size of the associated virtualspace.
12110 4c84d351cca9 8007074: SIGSEGV at ParMarkBitMap::verify_clear() stefank parents: 12063 diff changeset	352 VirtualSpaceNode::VirtualSpaceNode(size_t byte_size) : _top(NULL), _next(NULL), _rs(), _container_count(0) {
8752 82f49e8e2c28 8009614: nsk/split_verifier/stress/ifelse/ifelse002_30 fails with 'assert((size & (granularity - 1)) == 0) failed: size not aligned to os::vm_allocation_granularity() zgu parents: 8712 diff changeset	353 // align up to vm allocation granularity
82f49e8e2c28 8009614: nsk/split_verifier/stress/ifelse/ifelse002_30 fails with 'assert((size & (granularity - 1)) == 0) failed: size not aligned to os::vm_allocation_granularity() zgu parents: 8712 diff changeset	354 byte_size = align_size_up(byte_size, os::vm_allocation_granularity());
82f49e8e2c28 8009614: nsk/split_verifier/stress/ifelse/ifelse002_30 fails with 'assert((size & (granularity - 1)) == 0) failed: size not aligned to os::vm_allocation_granularity() zgu parents: 8712 diff changeset	355
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	356 // This allocates memory with mmap. For DumpSharedspaces, try to reserve
91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	357 // configurable address, generally at the top of the Java heap so other
91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	358 // memory addresses don't conflict.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	359 if (DumpSharedSpaces) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	360 char* shared_base = (char*)SharedBaseAddress;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	361 _rs = ReservedSpace(byte_size, 0, false, shared_base, 0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	362 if (_rs.is_reserved()) {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	363 assert(shared_base == 0 \|\| _rs.base() == shared_base, "should match");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	364 } else {
8804 91bf0bdae37b 8008217: CDS: Class data sharing limits the malloc heap on Solaris coleenp parents: 8754 diff changeset	365 // Get a mmap region anywhere if the SharedBaseAddress fails.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	366 _rs = ReservedSpace(byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	367 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	368 MetaspaceShared::set_shared_rs(&_rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	369 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	370 _rs = ReservedSpace(byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	371 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	372
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	373 MemTracker::record_virtual_memory_type((address)_rs.base(), mtClass);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	374 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	375
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	376 void VirtualSpaceNode::purge(ChunkManager* chunk_manager) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	377 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	378 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	379 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	380 assert(chunk->is_free(), "Should be marked free");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	381 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	382 chunk_manager->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	383 assert(chunk->next() == NULL &&
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	384 chunk->prev() == NULL,
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	385 "Was not removed from its list");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	386 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	387 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	388 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	389
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	390 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	391 uint VirtualSpaceNode::container_count_slow() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	392 uint count = 0;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	393 Metachunk* chunk = first_chunk();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	394 Metachunk* invalid_chunk = (Metachunk*) top();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	395 while (chunk < invalid_chunk ) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	396 MetaWord* next = ((MetaWord*)chunk) + chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	397 // Don't count the chunks on the free lists. Those are
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	398 // still part of the VirtualSpaceNode but not currently
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	399 // counted.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	400 if (!chunk->is_free()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	401 count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	402 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	403 chunk = (Metachunk*) next;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	404 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	405 return count;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	406 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	407 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	408
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	409 // List of VirtualSpaces for metadata allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410 // It has a _next link for singly linked list and a MemRegion
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	411 // for total space in the VirtualSpace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	412 class VirtualSpaceList : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	413 friend class VirtualSpaceNode;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	414
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415 enum VirtualSpaceSizes {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	416 VirtualSpaceSize = 256 * K
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	417 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	419 // Global list of virtual spaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	420 // Head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	421 VirtualSpaceNode* _virtual_space_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	422 // virtual space currently being used for allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	423 VirtualSpaceNode* _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	424 // Free chunk list for all other metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	425 ChunkManager _chunk_manager;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	426
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	427 // Can this virtual list allocate >1 spaces? Also, used to determine
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	428 // whether to allocate unlimited small chunks in this virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	429 bool _is_class;
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	430 bool can_grow() const { return !is_class() \|\| !UseCompressedClassPointers; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	431
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	432 // Sum of reserved and committed memory in the virtual spaces
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	433 size_t _reserved_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	434 size_t _committed_words;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	435
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	436 // Number of virtual spaces
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 size_t _virtual_space_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439 ~VirtualSpaceList();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	443 void set_virtual_space_list(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444 _virtual_space_list = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446 void set_current_virtual_space(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447 _current_virtual_space = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	450 void link_vs(VirtualSpaceNode* new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	451
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	452 // Get another virtual space and add it to the list. This
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	453 // is typically prompted by a failed attempt to allocate a chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	454 // and is typically followed by the allocation of a chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 bool grow_vs(size_t vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	458 VirtualSpaceList(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	459 VirtualSpaceList(ReservedSpace rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	461 size_t free_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	462
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	463 Metachunk* get_new_chunk(size_t word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	464 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	465 size_t medium_chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	466
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	467 bool expand_by(VirtualSpaceNode* node, size_t word_size, bool pre_touch = false);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	468
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	469 // Get the first chunk for a Metaspace. Used for
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	470 // special cases such as the boot class loader, reflection
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	471 // class loader and anonymous class loader.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	472 Metachunk* get_initialization_chunk(size_t word_size, size_t chunk_bunch);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	473
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	474 VirtualSpaceNode* current_virtual_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	475 return _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	476 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	477
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	478 ChunkManager* chunk_manager() { return &_chunk_manager; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479 bool is_class() const { return _is_class; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481 // Allocate the first virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 void initialize(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	484 size_t reserved_words() { return _reserved_words; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	485 size_t reserved_bytes() { return reserved_words() * BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	486 size_t committed_words() { return _committed_words; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	487 size_t committed_bytes() { return committed_words() * BytesPerWord; }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	488
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	489 void inc_reserved_words(size_t v);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	490 void dec_reserved_words(size_t v);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	491 void inc_committed_words(size_t v);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	492 void dec_committed_words(size_t v);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	493 void inc_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	494 void dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	495
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	496 // Unlink empty VirtualSpaceNodes and free it.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	497 void purge();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	498
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	499 // Used and capacity in the entire list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	500 // These are global values shared by all Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	501 size_t capacity_words_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502 size_t capacity_bytes_sum() { return capacity_words_sum() * BytesPerWord; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 size_t used_words_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504 size_t used_bytes_sum() { return used_words_sum() * BytesPerWord; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 bool contains(const void *ptr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	508 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	510 class VirtualSpaceListIterator : public StackObj {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511 VirtualSpaceNode* _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	512 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	513 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 _virtual_spaces(virtual_spaces) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 bool repeat() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517 return _virtual_spaces != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	520 VirtualSpaceNode* get_next() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	521 VirtualSpaceNode* result = _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	522 if (_virtual_spaces != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	523 _virtual_spaces = _virtual_spaces->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	524 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	527 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	528 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	529
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530 class Metadebug : AllStatic {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531 // Debugging support for Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	532 static int _deallocate_block_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533 static int _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 static int _allocation_fail_alot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 static int deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	538 return _deallocate_block_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	539 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	540 static void set_deallocate_block_a_lot_count(int v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 _deallocate_block_a_lot_count = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543 static void inc_deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	544 _deallocate_block_a_lot_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	546 static int deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	547 return _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	549 static void reset_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 _deallocate_chunk_a_lot_count = 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	551 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	552 static void inc_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	553 _deallocate_chunk_a_lot_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	554 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	555
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	556 static void init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	557 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558 static bool test_metadata_failure();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	560
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	561 static void deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	562 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	563 static void deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	564 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	565
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	566 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	567
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 int Metadebug::_deallocate_block_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569 int Metadebug::_deallocate_chunk_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	570 int Metadebug::_allocation_fail_alot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572 // SpaceManager - used by Metaspace to handle allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573 class SpaceManager : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	574 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575 friend class Metadebug;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	577 private:
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	578
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	579 // protects allocations and contains.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	580 Mutex* const _lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	582 // Type of metadata allocated.
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	583 Metaspace::MetadataType _mdtype;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	584
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	585 // Chunk related size
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	586 size_t _medium_chunk_bunch;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	587
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	588 // List of chunks in use by this SpaceManager. Allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 // are done from the current chunk. The list is used for deallocating
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	590 // chunks when the SpaceManager is freed.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	591 Metachunk* _chunks_in_use[NumberOfInUseLists];
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592 Metachunk* _current_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594 // Virtual space where allocation comes from.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595 VirtualSpaceList* _vs_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 // Number of small chunks to allocate to a manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598 // If class space manager, small chunks are unlimited
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599 static uint const _small_chunk_limit;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601 // Sum of all space in allocated chunks
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	602 size_t _allocated_blocks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	603
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	604 // Sum of all allocated chunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	605 size_t _allocated_chunks_words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	606 size_t _allocated_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	607
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	608 // Free lists of blocks are per SpaceManager since they
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	609 // are assumed to be in chunks in use by the SpaceManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610 // and all chunks in use by a SpaceManager are freed when
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	611 // the class loader using the SpaceManager is collected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	612 BlockFreelist _block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	613
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614 // protects virtualspace and chunk expansions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 static const char* _expand_lock_name;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 static const int _expand_lock_rank;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617 static Mutex* const _expand_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	619 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621 Metachunk* chunks_in_use(ChunkIndex index) const { return _chunks_in_use[index]; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 void set_chunks_in_use(ChunkIndex index, Metachunk* v) { _chunks_in_use[index] = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624 BlockFreelist* block_freelists() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625 return (BlockFreelist*) &_block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	627
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	628 Metaspace::MetadataType mdtype() { return _mdtype; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	629 VirtualSpaceList* vs_list() const { return _vs_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	630
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	631 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 void set_current_chunk(Metachunk* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	633 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	634 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	635
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636 Metachunk* find_current_chunk(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	637
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 // Add chunk to the list of chunks in use
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 void add_chunk(Metachunk* v, bool make_current);
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	640 void retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	641
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	642 Mutex* lock() const { return _lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	643
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	644 const char* chunk_size_name(ChunkIndex index) const;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	645
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	646 protected:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	647 void initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	648
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	649 public:
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	650 SpaceManager(Metaspace::MetadataType mdtype,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	651 Mutex* lock,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	652 VirtualSpaceList* vs_list);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	653 ~SpaceManager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	654
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	655 enum ChunkMultiples {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	656 MediumChunkMultiple = 4
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	657 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	658
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	659 // Accessors
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	660 size_t specialized_chunk_size() { return SpecializedChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	661 size_t small_chunk_size() { return (size_t) vs_list()->is_class() ? ClassSmallChunk : SmallChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	662 size_t medium_chunk_size() { return (size_t) vs_list()->is_class() ? ClassMediumChunk : MediumChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	663 size_t medium_chunk_bunch() { return medium_chunk_size() * MediumChunkMultiple; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	664
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	665 size_t allocated_blocks_words() const { return _allocated_blocks_words; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	666 size_t allocated_blocks_bytes() const { return _allocated_blocks_words * BytesPerWord; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	667 size_t allocated_chunks_words() const { return _allocated_chunks_words; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	668 size_t allocated_chunks_count() const { return _allocated_chunks_count; }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	669
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	670 bool is_humongous(size_t word_size) { return word_size > medium_chunk_size(); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	671
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	672 static Mutex* expand_lock() { return _expand_lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	673
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	674 // Increment the per Metaspace and global running sums for Metachunks
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	675 // by the given size. This is used when a Metachunk to added to
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	676 // the in-use list.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	677 void inc_size_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	678 // Increment the per Metaspace and global running sums Metablocks by the given
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	679 // size. This is used when a Metablock is allocated.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	680 void inc_used_metrics(size_t words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	681 // Delete the portion of the running sums for this SpaceManager. That is,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	682 // the globals running sums for the Metachunks and Metablocks are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	683 // decremented for all the Metachunks in-use by this SpaceManager.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	684 void dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	685
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	686 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	687 void get_initial_chunk_sizes(Metaspace::MetaspaceType type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	688 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	689 size_t* class_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	690
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691 size_t sum_capacity_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	693 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 size_t sum_waste_in_chunks_in_use(ChunkIndex index ) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	696
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	697 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	698 size_t sum_count_in_chunks_in_use(ChunkIndex i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	699
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	700 Metachunk* get_new_chunk(size_t word_size, size_t grow_chunks_by_words);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	701
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	704 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706 // Helper for allocations
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	707 MetaWord* allocate_work(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	708
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	709 // Returns a block to the per manager freelist
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	710 void deallocate(MetaWord* p, size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	711
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712 // Based on the allocation size and a minimum chunk size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	714 size_t calc_chunk_size(size_t allocation_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	715
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	716 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	717 // Gets a new chunk (may require getting a new virtual space),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718 // and allocates from that chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	719 MetaWord* grow_and_allocate(size_t word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 void locked_print_chunks_in_use_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	727 void verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	728 void verify_chunk_size(Metachunk* chunk);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	729 NOT_PRODUCT(void mangle_freed_chunks();)
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	730 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	731 void verify_allocated_blocks_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	732 #endif
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	733
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	734 size_t get_raw_word_size(size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	735 // If only the dictionary is going to be used (i.e., no
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	736 // indexed free list), then there is a minimum size requirement.
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	737 // MinChunkSize is a placeholder for the real minimum size JJJ
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	738 size_t byte_size = word_size * BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	739
12237 335b388c4b28 8024651: Remove the incorrect usage of Metablock::overhead() stefank parents: 12236 diff changeset	740 size_t raw_bytes_size = MAX2(byte_size,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	741 Metablock::min_block_byte_size());
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	742 raw_bytes_size = ARENA_ALIGN(raw_bytes_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	743 size_t raw_word_size = raw_bytes_size / BytesPerWord;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	744 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	745
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	746 return raw_word_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	747 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	748 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	749
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	751
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	752 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	753 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	756 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	760 void VirtualSpaceNode::inc_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	761 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	762 _container_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	763 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	764 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	765 "container_count_slow() " SIZE_FORMAT,
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	766 _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	767 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	768
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	769 void VirtualSpaceNode::dec_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	770 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	771 _container_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	772 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	773
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	774 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	775 void VirtualSpaceNode::verify_container_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	776 assert(_container_count == container_count_slow(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	777 err_msg("Inconsistency in countainer_count _container_count " SIZE_FORMAT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	778 "container_count_slow() " SIZE_FORMAT, _container_count, container_count_slow()));
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	779 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	780 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	781
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	782 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	786 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	788 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	789 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	790 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	791 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	792 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	793 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	794
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	795 Metablock* BlockFreelist::initialize_free_chunk(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	796 Metablock* block = (Metablock*) p;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	797 block->set_word_size(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	798 block->set_prev(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	799 block->set_next(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	800
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	801 return block;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	802 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	803
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	804 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	805 Metablock* free_chunk = initialize_free_chunk(p, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806 if (dictionary() == NULL) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	807 _dictionary = new BlockTreeDictionary();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	808 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	809 dictionary()->return_chunk(free_chunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	810 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	811
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	812 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	813 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	814 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	815 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	816
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	817 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	818 // Dark matter. Too small for dictionary.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	819 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	820 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	821
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	822 Metablock* free_block =
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	823 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::atLeast);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	824 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	825 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	826 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	827
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	828 const size_t block_size = free_block->size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	829 if (block_size > WasteMultiplier * word_size) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	830 return_block((MetaWord*)free_block, block_size);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	831 return NULL;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	832 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	833
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	834 MetaWord* new_block = (MetaWord*)free_block;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	835 assert(block_size >= word_size, "Incorrect size of block from freelist");
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	836 const size_t unused = block_size - word_size;
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	837 if (unused >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	838 return_block(new_block + word_size, unused);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	839 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	840
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	841 return new_block;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	842 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	843
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	844 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	845 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	846 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	847 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	848 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	849 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	850
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	851 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	852
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	853 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854 _rs.release();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	855 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	856 size_t word_size = sizeof(*this) / BytesPerWord;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	857 Copy::fill_to_words((HeapWord*) this, word_size, 0xf1f1f1f1);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	858 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	859 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	860
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	861 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	862 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	863 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	864
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	865 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	866 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	867 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	868 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	869
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	870 size_t VirtualSpaceNode::free_words_in_vs() const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	871 return pointer_delta(end(), top(), sizeof(MetaWord));
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	872 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	874 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	875 // This interface is also used internally for debugging. Not all
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	876 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	877 Metachunk* VirtualSpaceNode::take_from_committed(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	878 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	879 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	880 assert(chunk_limit != NULL, "Not safe to call this method");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	881
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	882 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	883 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	884 tty->print("VirtualSpaceNode::take_from_committed() not available %d words ", chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	885 // Dump some information about the virtual space that is nearly full
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	886 print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	887 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	888 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	889 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	890
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	891 // Take the space (bump top on the current virtual space).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	892 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	893
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	894 // Initialize the chunk
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	895 Metachunk* result = ::new (chunk_limit) Metachunk(chunk_word_size, this);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	896 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	897 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	898
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	899
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	900 // Expand the virtual space (commit more of the reserved space)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	901 bool VirtualSpaceNode::expand_by(size_t words, bool pre_touch) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	902 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	903 bool result = virtual_space()->expand_by(bytes, pre_touch);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	904 if (TraceMetavirtualspaceAllocation && !result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	905 gclog_or_tty->print_cr("VirtualSpaceNode::expand_by() failed "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	906 "for byte size " SIZE_FORMAT, bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	907 virtual_space()->print();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	908 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	909 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	910 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	911
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	912 Metachunk* VirtualSpaceNode::get_chunk_vs(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	913 assert_lock_strong(SpaceManager::expand_lock());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	914 Metachunk* result = take_from_committed(chunk_word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	915 if (result != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	916 inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	917 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	918 return result;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	919 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	920
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	921 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	922
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	923 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	924 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	925 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	927 // An allocation out of this Virtualspace that is larger
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	928 // than an initial commit size can waste that initial committed
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	929 // space.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	930 size_t committed_byte_size = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	931 bool result = virtual_space()->initialize(_rs, committed_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	932 if (result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	933 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	934 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	935 (HeapWord*)(_rs.base() + _rs.size())));
6726 03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	936
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	937 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	938 err_msg("Reserved start was not set properly " PTR_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	939 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	940 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	941 err_msg("Reserved size was not set properly " SIZE_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	942 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base(). coleenp parents: 6725 diff changeset	943 _rs.size() / BytesPerWord));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	944 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	946 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	948
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	949 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	950 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	951 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	952 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	953 st->print_cr(" space @ " PTR_FORMAT " " SIZE_FORMAT "K, %3d%% used "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 PTR_FORMAT ", " PTR_FORMAT ")",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	956 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	957 capacity == 0 ? 0 : used * 100 / capacity,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	958 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	959 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	960 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	961
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	962 #ifdef ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	963 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	964 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	965 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	966 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	967 #endif // ASSERT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	968
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	969 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	970 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	971
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	972 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	973 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	974 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	975 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	976 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	977 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	978 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	979
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	980 void VirtualSpaceList::inc_reserved_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	981 assert_lock_strong(SpaceManager::expand_lock());
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	982 _reserved_words = _reserved_words + v;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	983 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	984 void VirtualSpaceList::dec_reserved_words(size_t v) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	985 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	986 _reserved_words = _reserved_words - v;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	987 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	988
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	989 void VirtualSpaceList::inc_committed_words(size_t v) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	990 assert_lock_strong(SpaceManager::expand_lock());
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	991 _committed_words = _committed_words + v;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	992 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	993 void VirtualSpaceList::dec_committed_words(size_t v) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	994 assert_lock_strong(SpaceManager::expand_lock());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	995 _committed_words = _committed_words - v;
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	996 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	997
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	998 void VirtualSpaceList::inc_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	999 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1000 _virtual_space_count++;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1001 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1002 void VirtualSpaceList::dec_virtual_space_count() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1003 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1004 _virtual_space_count--;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1005 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1006
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1007 void ChunkManager::remove_chunk(Metachunk* chunk) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1008 size_t word_size = chunk->word_size();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1009 ChunkIndex index = list_index(word_size);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1010 if (index != HumongousIndex) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1011 free_chunks(index)->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1012 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1013 humongous_dictionary()->remove_chunk(chunk);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1014 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1015
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1016 // Chunk is being removed from the chunks free list.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1017 dec_free_chunks_total(chunk->capacity_word_size());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1018 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1019
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1020 // Walk the list of VirtualSpaceNodes and delete
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1021 // nodes with a 0 container_count. Remove Metachunks in
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1022 // the node from their respective freelists.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1023 void VirtualSpaceList::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1024 assert_lock_strong(SpaceManager::expand_lock());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1025 // Don't use a VirtualSpaceListIterator because this
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1026 // list is being changed and a straightforward use of an iterator is not safe.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1027 VirtualSpaceNode* purged_vsl = NULL;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1028 VirtualSpaceNode* prev_vsl = virtual_space_list();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1029 VirtualSpaceNode* next_vsl = prev_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1030 while (next_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1031 VirtualSpaceNode* vsl = next_vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1032 next_vsl = vsl->next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1033 // Don't free the current virtual space since it will likely
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1034 // be needed soon.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1035 if (vsl->container_count() == 0 && vsl != current_virtual_space()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1036 // Unlink it from the list
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1037 if (prev_vsl == vsl) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1038 // This is the case of the current note being the first note.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1039 assert(vsl == virtual_space_list(), "Expected to be the first note");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1040 set_virtual_space_list(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1041 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1042 prev_vsl->set_next(vsl->next());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1043 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1044
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1045 vsl->purge(chunk_manager());
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1046 dec_reserved_words(vsl->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1047 dec_committed_words(vsl->committed_words());
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1048 dec_virtual_space_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1049 purged_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1050 delete vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1051 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1052 prev_vsl = vsl;
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1053 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1054 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1055 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1056 if (purged_vsl != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1057 // List should be stable enough to use an iterator here.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1058 VirtualSpaceListIterator iter(virtual_space_list());
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1059 while (iter.repeat()) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1060 VirtualSpaceNode* vsl = iter.get_next();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1061 assert(vsl != purged_vsl, "Purge of vsl failed");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1062 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1063 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1064 #endif
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1065 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1066
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1067 size_t VirtualSpaceList::used_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1068 size_t allocated_by_vs = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1069 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1070 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1071 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1072 // Sum used region [bottom, top) in each virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1073 allocated_by_vs += vsl->used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1074 }
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1075 assert(allocated_by_vs >= chunk_manager()->free_chunks_total_words(),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1076 err_msg("Total in free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1077 " greater than total from virtual_spaces " SIZE_FORMAT,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1078 allocated_by_vs, chunk_manager()->free_chunks_total_words()));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1079 size_t used =
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1080 allocated_by_vs - chunk_manager()->free_chunks_total_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1081 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1082 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1083
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1084 // Space available in all MetadataVirtualspaces allocated
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1085 // for metadata. This is the upper limit on the capacity
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1086 // of chunks allocated out of all the MetadataVirtualspaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1087 size_t VirtualSpaceList::capacity_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1088 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1089 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1090 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1091 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1092 capacity += vsl->capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1093 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1094 return capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1095 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1096
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1097 VirtualSpaceList::VirtualSpaceList(size_t word_size ) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1098 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1099 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1100 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1101 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1102 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1103 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1104 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1105 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1106 bool initialization_succeeded = grow_vs(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1107
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1108 _chunk_manager.free_chunks(SpecializedIndex)->set_size(SpecializedChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1109 _chunk_manager.free_chunks(SmallIndex)->set_size(SmallChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1110 _chunk_manager.free_chunks(MediumIndex)->set_size(MediumChunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1111 assert(initialization_succeeded,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1112 " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1113 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1114
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1115 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1116 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1117 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1118 _current_virtual_space(NULL),
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1119 _reserved_words(0),
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1120 _committed_words(0),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1121 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1122 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1123 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1124 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1125 bool succeeded = class_entry->initialize();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1126 _chunk_manager.free_chunks(SpecializedIndex)->set_size(SpecializedChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1127 _chunk_manager.free_chunks(SmallIndex)->set_size(ClassSmallChunk);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1128 _chunk_manager.free_chunks(MediumIndex)->set_size(ClassMediumChunk);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1129 assert(succeeded, " VirtualSpaceList initialization should not fail");
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1130 link_vs(class_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1131 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1132
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1133 size_t VirtualSpaceList::free_bytes() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1134 return virtual_space_list()->free_words_in_vs() * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1135 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1136
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1137 // Allocate another meta virtual space and add it to the list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1138 bool VirtualSpaceList::grow_vs(size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1139 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1140 if (vs_word_size == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1141 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1142 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1143 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1144 size_t vs_byte_size = vs_word_size * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1145 assert(vs_byte_size % os::vm_page_size() == 0, "Not aligned");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1146
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1147 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1148 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1149 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1150 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1151 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1152 } else {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1153 assert(new_entry->reserved_words() == vs_word_size, "Must be");
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1154 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	1155 OrderAccess::storestore();
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1156 link_vs(new_entry);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1157 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1158 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1159 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1160
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1161 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1162 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1163 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1164 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1165 current_virtual_space()->set_next(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1166 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1167 set_current_virtual_space(new_entry);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1168 inc_reserved_words(new_entry->reserved_words());
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1169 inc_committed_words(new_entry->committed_words());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1170 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1171 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1172 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1173 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1174 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1175 VirtualSpaceNode* vsl = current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1176 vsl->print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1177 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1178 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1179
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1180 bool VirtualSpaceList::expand_by(VirtualSpaceNode* node, size_t word_size, bool pre_touch) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1181 size_t before = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1182
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1183 bool result = node->expand_by(word_size, pre_touch);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1184
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1185 size_t after = node->committed_words();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1186
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1187 // after and before can be the same if the memory was pre-committed.
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1188 assert(after >= before, "Must be");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1189 inc_committed_words(after - before);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1190
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1191 return result;
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1192 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1193
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1194 Metachunk* VirtualSpaceList::get_new_chunk(size_t word_size,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1195 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1196 size_t medium_chunk_bunch) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1197
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1198 // Get a chunk from the chunk freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1199 Metachunk* next = chunk_manager()->chunk_freelist_allocate(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1200
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1201 if (next != NULL) {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1202 next->container()->inc_container_count();
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1203 } else {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1204 // Allocate a chunk out of the current virtual space.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1205 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1206 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1207
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1208 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1209 // Not enough room in current virtual space. Try to commit
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1210 // more space.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1211 size_t expand_vs_by_words = MAX2(medium_chunk_bunch,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1212 grow_chunks_by_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1213 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1214 size_t aligned_expand_vs_by_words = align_size_up(expand_vs_by_words,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1215 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1216 bool vs_expanded =
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1217 expand_by(current_virtual_space(), aligned_expand_vs_by_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1218 if (!vs_expanded) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1219 // Should the capacity of the metaspaces be expanded for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1220 // this allocation? If it's the virtual space for classes and is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1221 // being used for CompressedHeaders, don't allocate a new virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1222 if (can_grow() && MetaspaceGC::should_expand(this, word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1223 // Get another virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1224 size_t grow_vs_words =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1225 MAX2((size_t)VirtualSpaceSize, aligned_expand_vs_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1226 if (grow_vs(grow_vs_words)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1227 // Got it. It's on the list now. Get a chunk from it.
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1228 assert(current_virtual_space()->expanded_words() == 0,
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1229 "New virtuals space nodes should not have expanded");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1230
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1231 size_t grow_chunks_by_words_aligned = align_size_up(grow_chunks_by_words,
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1232 page_size_words);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1233 // We probably want to expand by aligned_expand_vs_by_words here.
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1234 expand_by(current_virtual_space(), grow_chunks_by_words_aligned);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1235 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1236 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1237 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1238 // Allocation will fail and induce a GC
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1239 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1240 gclog_or_tty->print_cr("VirtualSpaceList::get_new_chunk():"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1241 " Fail instead of expand the metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1242 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1243 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1244 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1245 // The virtual space expanded, get a new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1246 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1247 assert(next != NULL, "Just expanded, should succeed");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1248 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1249 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1250
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1251 assert(next == NULL \|\| (next->next() == NULL && next->prev() == NULL),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1252 "New chunk is still on some list");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1253 return next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1254 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1255
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1256 Metachunk* VirtualSpaceList::get_initialization_chunk(size_t chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1257 size_t chunk_bunch) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1258 // Get a chunk from the chunk freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1259 Metachunk* new_chunk = get_new_chunk(chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1260 chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1261 chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1262 return new_chunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1263 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1264
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1265 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1266 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1267 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1268 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1269 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1270 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1271 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1272 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1273 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1274
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1275 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1276 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1277 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1278 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1279 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1280 if (node->reserved()->contains(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1281 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1282 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1283 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1284 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1285 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1286
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1287
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1288 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1289
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1290 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1291 // Within the VM operation after the GC the attempt to allocate the metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1292 // should succeed. If the GC did not free enough space for the metaspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1293 // allocation, the HWM is increased so that another virtualspace will be
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1294 // allocated for the metadata. With perm gen the increase in the perm
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1295 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1296 // metaspace policy uses those as the small and large steps for the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1297 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1298 // After the GC the compute_new_size() for MetaspaceGC is called to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1299 // resize the capacity of the metaspaces. The current implementation
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1300 // is based on the flags MinMetaspaceFreeRatio and MaxMetaspaceFreeRatio used
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1301 // to resize the Java heap by some GC's. New flags can be implemented
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1302 // if really needed. MinMetaspaceFreeRatio is used to calculate how much
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1303 // free space is desirable in the metaspace capacity to decide how much
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1304 // to increase the HWM. MaxMetaspaceFreeRatio is used to decide how much
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1305 // free space is desirable in the metaspace capacity before decreasing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1306 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1307
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1308 // Calculate the amount to increase the high water mark (HWM).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1309 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1310 // another expansion is not requested too soon. If that is not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1311 // enough to satisfy the allocation (i.e. big enough for a word_size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1312 // allocation), increase by MaxMetaspaceExpansion. If that is still
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1313 // not enough, expand by the size of the allocation (word_size) plus
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1314 // some.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1315 size_t MetaspaceGC::delta_capacity_until_GC(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1316 size_t before_inc = MetaspaceGC::capacity_until_GC();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1317 size_t min_delta_words = MinMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1318 size_t max_delta_words = MaxMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1319 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1320 size_t size_delta_words = align_size_up(word_size, page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1321 size_t delta_words = MAX2(size_delta_words, min_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1322 if (delta_words > min_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1323 // Don't want to hit the high water mark on the next
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1324 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1325 // for this allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1326 delta_words = MAX2(delta_words, max_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1327 if (delta_words > max_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1328 // This allocation is large but the next ones are probably not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1329 // so increase by the minimum.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1330 delta_words = delta_words + min_delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1331 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1332 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1333 return delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1334 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1335
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1336 bool MetaspaceGC::should_expand(VirtualSpaceList* vsl, size_t word_size) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1337
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1338 // If the user wants a limit, impose one.
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1339 // The reason for someone using this flag is to limit reserved space. So
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1340 // for non-class virtual space, compare against virtual spaces that are reserved.
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1341 // For class virtual space, we only compare against the committed space, not
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1342 // reserved space, because this is a larger space prereserved for compressed
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1343 // class pointers.
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1344 if (!FLAG_IS_DEFAULT(MaxMetaspaceSize)) {
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	1345 size_t real_allocated = Metaspace::space_list()->reserved_words() +
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1346 MetaspaceAux::allocated_capacity_bytes(Metaspace::ClassType);
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1347 if (real_allocated >= MaxMetaspaceSize) {
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1348 return false;
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1349 }
8790 7f0cb32dd233 8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option mgerdin parents: 8786 diff changeset	1350 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1351
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1352 // Class virtual space should always be expanded. Call GC for the other
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1353 // metadata virtual space.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	1354 if (Metaspace::using_class_space() &&
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	1355 (vsl == Metaspace::class_space_list())) return true;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1356
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1357 // If this is part of an allocation after a GC, expand
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1358 // unconditionally.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1359 if (MetaspaceGC::expand_after_GC()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1360 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1361 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1362
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1363
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1364 // If the capacity is below the minimum capacity, allow the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1365 // expansion. Also set the high-water-mark (capacity_until_GC)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1366 // to that minimum capacity so that a GC will not be induced
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1367 // until that minimum capacity is exceeded.
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1368 size_t committed_capacity_bytes = MetaspaceAux::allocated_capacity_bytes();
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1369 size_t metaspace_size_bytes = MetaspaceSize;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1370 if (committed_capacity_bytes < metaspace_size_bytes \|\|
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1371 capacity_until_GC() == 0) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1372 set_capacity_until_GC(metaspace_size_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1373 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1374 } else {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1375 if (committed_capacity_bytes < capacity_until_GC()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1376 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1377 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1378 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1379 gclog_or_tty->print_cr(" allocation request size " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1380 " capacity_until_GC " SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1381 " allocated_capacity_bytes " SIZE_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1382 word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1383 capacity_until_GC(),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1384 MetaspaceAux::allocated_capacity_bytes());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1385 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1386 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1387 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1388 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1389 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1390
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1391
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1392
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1393 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1394 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1395 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1396 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1397
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1398 // Until a faster way of calculating the "used" quantity is implemented,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1399 // use "capacity".
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1400 const size_t used_after_gc = MetaspaceAux::allocated_capacity_bytes();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1401 const size_t capacity_until_GC = MetaspaceGC::capacity_until_GC();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1402
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1403 const double minimum_free_percentage = MinMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1404 const double maximum_used_percentage = 1.0 - minimum_free_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1405
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1406 const double min_tmp = used_after_gc / maximum_used_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1407 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1408 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1409 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1410 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1411 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1412
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1413 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1414 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1415 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1416 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1417 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1418 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1419 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1420 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1421 " used_after_gc : %6.1fKB",
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1422 used_after_gc / (double) K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1423 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1424
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1425
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1426 size_t shrink_bytes = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1427 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1428 // If we have less capacity below the metaspace HWM, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1429 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1430 size_t expand_bytes = minimum_desired_capacity - capacity_until_GC;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1431 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1432 if (expand_bytes >= MinMetaspaceExpansion) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1433 MetaspaceGC::set_capacity_until_GC(capacity_until_GC + expand_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1434 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1435 if (PrintGCDetails && Verbose) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1436 size_t new_capacity_until_GC = capacity_until_GC;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1437 gclog_or_tty->print_cr(" expanding:"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1438 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1439 " expand_bytes: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1440 " MinMetaspaceExpansion: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1441 " new metaspace HWM: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1442 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1443 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1444 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1445 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1446 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1447 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1448 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1449
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1450 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1451 // We would never want to shrink more than this
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1452 size_t max_shrink_bytes = capacity_until_GC - minimum_desired_capacity;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1453 assert(max_shrink_bytes >= 0, err_msg("max_shrink_bytes " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1454 max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1455
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1456 // Should shrinking be considered?
8040 a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1457 if (MaxMetaspaceFreeRatio < 100) {
a83cd101fd62 8005452: NPG: Create new flags for Metaspace resizing policy jmasa parents: 8007 diff changeset	1458 const double maximum_free_percentage = MaxMetaspaceFreeRatio / 100.0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1459 const double minimum_used_percentage = 1.0 - maximum_free_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1460 const double max_tmp = used_after_gc / minimum_used_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1461 size_t maximum_desired_capacity = (size_t)MIN2(max_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1462 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1463 MetaspaceSize);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1464 if (PrintGCDetails && Verbose) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1465 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1466 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1467 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1468 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1469 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1470 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1471 " minimum_desired_capacity: %6.1fKB"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1472 " maximum_desired_capacity: %6.1fKB",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1473 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1474 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1475 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1476
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1477 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1478 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1479
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1480 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1481 // Capacity too large, compute shrinking size
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1482 shrink_bytes = capacity_until_GC - maximum_desired_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1483 // We don't want shrink all the way back to initSize if people call
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1484 // System.gc(), because some programs do that between "phases" and then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1485 // we'd just have to grow the heap up again for the next phase. So we
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1486 // damp the shrinking: 0% on the first call, 10% on the second call, 40%
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1487 // on the third call, and 100% by the fourth call. But if we recompute
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1488 // size without shrinking, it goes back to 0%.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1489 shrink_bytes = shrink_bytes / 100 * current_shrink_factor;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1490 assert(shrink_bytes <= max_shrink_bytes,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1491 err_msg("invalid shrink size " SIZE_FORMAT " not <= " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1492 shrink_bytes, max_shrink_bytes));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1493 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1494 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1495 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1496 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1497 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1498 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1499 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1500 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1501 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1502 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1503 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1504 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1505 gclog_or_tty->print_cr(" "
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1506 " shrink_bytes: %.1fK"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1507 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1508 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1509 " MinMetaspaceExpansion: %.1fK",
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1510 shrink_bytes / (double) K,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1511 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1512 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1513 MinMetaspaceExpansion / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1514 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1515 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1516 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1517
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1518 // Don't shrink unless it's significant
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1519 if (shrink_bytes >= MinMetaspaceExpansion &&
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1520 ((capacity_until_GC - shrink_bytes) >= MetaspaceSize)) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1521 MetaspaceGC::set_capacity_until_GC(capacity_until_GC - shrink_bytes);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1522 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1523 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1524
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1525 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1526
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1527 void Metadebug::deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1528 size_t chunk_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1529 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1530 VirtualSpaceList* vsl = sm->vs_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1531 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1532 Metadebug::deallocate_chunk_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1533 Metadebug::reset_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1534 for (uint i = 0; i < metadata_deallocate_a_lock_chunk; i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1535 Metachunk* dummy_chunk = vsl->current_virtual_space()->take_from_committed(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1536 if (dummy_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1537 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1538 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1539 vsl->chunk_manager()->chunk_freelist_deallocate(dummy_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1540
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1541 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1542 gclog_or_tty->print("Metadebug::deallocate_chunk_a_lot: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1543 sm->sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1544 dummy_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1545 gclog_or_tty->print_cr(" Free chunks total %d count %d",
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1546 vsl->chunk_manager()->free_chunks_total_words(),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1547 vsl->chunk_manager()->free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1548 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1549 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1550 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1551 Metadebug::inc_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1552 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1553 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1554 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1555
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1556 void Metadebug::deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1557 size_t raw_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1558 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1559 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1560 Metadebug::deallocate_block_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1561 Metadebug::set_deallocate_block_a_lot_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1562 for (uint i = 0; i < metadata_deallocate_a_lot_block; i++) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1563 MetaWord* dummy_block = sm->allocate_work(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1564 if (dummy_block == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1565 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1566 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1567 sm->deallocate(dummy_block, raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1568 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1569 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1570 Metadebug::inc_deallocate_block_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1571 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1572 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1573 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1574
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1575 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1576 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1577 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1578 1+(long)((double)MetadataAllocationFailALotInterval*os::random()/(max_jint+1.0));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1579 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1580 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1581
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1582 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1583 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1584 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1585 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1586 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1587 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1588 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1589 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1590 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1591 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1592 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1593 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1594 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1595 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1596 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1597 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1598 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1599 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1600
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1601 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1602
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1603 size_t ChunkManager::free_chunks_total_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1604 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1605 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1606
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1607 size_t ChunkManager::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	1608 return free_chunks_total_words() * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1609 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1610
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1611 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1612 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1613 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1614 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1615 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1616 // This lock is only needed in debug because the verification
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1617 // of the _free_chunks_totals walks the list of free chunks
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1618 slow_locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1619 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1620 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1621 return _free_chunks_count;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1622 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1623
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1624 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1625 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1626 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1627 err_msg("_free_chunks_total " SIZE_FORMAT " is not the"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1628 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1629 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1630 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1631
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1632 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1633 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1634 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1635 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1636 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1637
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1638 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1639 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1640 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1641 err_msg("_free_chunks_count " SIZE_FORMAT " is not the"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1642 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1643 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1644 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1645
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1646 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1647 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1648 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1649 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1650 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1651 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1652 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1653
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1654 void ChunkManager::verify() {
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1655 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1656 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1657 locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1658 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1659
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1660 void ChunkManager::locked_verify() {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1661 locked_verify_free_chunks_count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1662 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1663 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1664
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1665 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1666 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1667 st->print_cr("Free chunk total " SIZE_FORMAT " count " SIZE_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1668 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1669 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1670
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1671 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1672 assert_lock_strong(SpaceManager::expand_lock());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1673 st->print_cr("Sum free chunk total " SIZE_FORMAT " count " SIZE_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1674 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1675 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1676 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1677 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1678 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1679
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1680 // These methods that sum the free chunk lists are used in printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1681 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1682 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1683 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1684 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1685 for (ChunkIndex i = ZeroIndex; i < NumberOfFreeLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1686 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1687
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1688 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1689 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1690 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1691
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1692 result = result + list->count() * list->size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1693 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1694 result = result + humongous_dictionary()->total_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1695 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1696 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1697
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1698 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1699 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1700 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1701 for (ChunkIndex i = ZeroIndex; i < NumberOfFreeLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1702 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1703 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1704 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1705 }
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1706 count = count + list->count();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1707 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1708 count = count + humongous_dictionary()->total_free_blocks();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1709 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1710 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1711
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1712 ChunkList* ChunkManager::find_free_chunks_list(size_t word_size) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1713 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1714 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1715 return free_chunks(index);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1716 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1717
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1718 void ChunkManager::free_chunks_put(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1719 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1720 ChunkList* free_list = find_free_chunks_list(chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1721 chunk->set_next(free_list->head());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1722 free_list->set_head(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1723 // chunk is being returned to the chunk free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1724 inc_free_chunks_total(chunk->capacity_word_size());
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1725 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1726 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1727
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1728 void ChunkManager::chunk_freelist_deallocate(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1729 // The deallocation of a chunk originates in the freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1730 // manangement code for a Metaspace and does not hold the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1731 // lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1732 assert(chunk != NULL, "Deallocating NULL");
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1733 assert_lock_strong(SpaceManager::expand_lock());
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1734 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1735 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1736 tty->print_cr("ChunkManager::chunk_freelist_deallocate: chunk "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1737 PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1738 chunk, chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1739 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1740 free_chunks_put(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1741 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1742
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1743 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1744 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1745
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1746 slow_locked_verify();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1747
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1748 Metachunk* chunk = NULL;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1749 if (list_index(word_size) != HumongousIndex) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1750 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1751 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1752
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1753 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1754 debug_only(Metachunk* debug_head = chunk;)
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1755
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1756 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1757 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1758 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1759
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1760 // Remove the chunk as the head of the list.
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1761 free_list->remove_chunk(chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1762
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1763 // Chunk is being removed from the chunks free list.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1764 dec_free_chunks_total(chunk->capacity_word_size());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1765
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1766 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1767 tty->print_cr("ChunkManager::free_chunks_get: free_list "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1768 PTR_FORMAT " head " PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1769 free_list, chunk, chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1770 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1771 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1772 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1773 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1774 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1775
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1776 if (chunk != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1777 if (TraceMetadataHumongousAllocation) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1778 size_t waste = chunk->word_size() - word_size;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1779 tty->print_cr("Free list allocate humongous chunk size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1780 " for requested size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1781 " waste " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1782 chunk->word_size(), word_size, waste);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1783 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1784 // Chunk is being removed from the chunks free list.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1785 dec_free_chunks_total(chunk->capacity_word_size());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1786 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1787 return NULL;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1788 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1789 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1790
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1791 // Remove it from the links to this freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1792 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1793 chunk->set_prev(NULL);
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1794 #ifdef ASSERT
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1795 // Chunk is no longer on any freelist. Setting to false make container_count_slow()
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1796 // work.
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1797 chunk->set_is_free(false);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	1798 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1799 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1800 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1801 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1802
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1803 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1804 assert_lock_strong(SpaceManager::expand_lock());
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	1805 slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1806
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1807 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1808 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1809 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1810 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1811 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1812
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1813 assert((word_size <= chunk->word_size()) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1814 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1815 "Non-humongous variable sized chunk");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1816 if (TraceMetadataChunkAllocation) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1817 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1818 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1819 ChunkList* list = find_free_chunks_list(word_size);
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	1820 list_count = list->count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1821 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1822 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1823 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1824 tty->print("ChunkManager::chunk_freelist_allocate: " PTR_FORMAT " chunk "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1825 PTR_FORMAT " size " SIZE_FORMAT " count " SIZE_FORMAT " ",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1826 this, chunk, chunk->word_size(), list_count);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1827 locked_print_free_chunks(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1828 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1829
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1830 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1831 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1832
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1833 void ChunkManager::print_on(outputStream* out) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1834 if (PrintFLSStatistics != 0) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1835 humongous_dictionary()->report_statistics();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1836 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1837 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1838
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1839 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1840
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1841 void SpaceManager::get_initial_chunk_sizes(Metaspace::MetaspaceType type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1842 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1843 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1844 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1845 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1846 *chunk_word_size = Metaspace::first_chunk_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1847 *class_chunk_word_size = Metaspace::first_class_chunk_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1848 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1849 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1850 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1851 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1852 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1853 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1854 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1855 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1856 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1857 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1858 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1859 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1860 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1861 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1862 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1863 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1864 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1865 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1866 }
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1867 assert(chunk_word_size != 0 && class_chunk_word_size != 0,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1868 err_msg("Initial chunks sizes bad: data " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1869 " class " SIZE_FORMAT,
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	1870 chunk_word_size, class_chunk_word_size));
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1871 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1872
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1873 size_t SpaceManager::sum_free_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1874 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1875 size_t free = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1876 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1877 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1878 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1879 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1880 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1881 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1882 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1883 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1884 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1885
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1886 size_t SpaceManager::sum_waste_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1887 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1888 size_t result = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1889 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1890 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1891 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1892
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1893 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1894 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1895
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1896 size_t SpaceManager::sum_waste_in_chunks_in_use(ChunkIndex index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1897 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1898 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1899 // Count the free space in all the chunk but not the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1900 // current chunk from which allocations are still being done.
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1901 while (chunk != NULL) {
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1902 if (chunk != current_chunk()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1903 result += chunk->free_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1904 }
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1905 chunk = chunk->next();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1906 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1907 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1908 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1909
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1910 size_t SpaceManager::sum_capacity_in_chunks_in_use() const {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1911 // For CMS use "allocated_chunks_words()" which does not need the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1912 // Metaspace lock. For the other collectors sum over the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1913 // lists. Use both methods as a check that "allocated_chunks_words()"
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1914 // is correct. That is, sum_capacity_in_chunks() is too expensive
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1915 // to use in the product and allocated_chunks_words() should be used
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1916 // but allow for checking that allocated_chunks_words() returns the same
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1917 // value as sum_capacity_in_chunks_in_use() which is the definitive
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1918 // answer.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1919 if (UseConcMarkSweepGC) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1920 return allocated_chunks_words();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1921 } else {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1922 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1923 size_t sum = 0;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1924 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1925 Metachunk* chunk = chunks_in_use(i);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1926 while (chunk != NULL) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1927 sum += chunk->capacity_word_size();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1928 chunk = chunk->next();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1929 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1930 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	1931 return sum;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1932 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1933 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1934
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1935 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1936 size_t count = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1937 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1938 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1939 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	1940
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1941 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1942 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1943
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1944 size_t SpaceManager::sum_count_in_chunks_in_use(ChunkIndex i) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1945 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1946 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1947 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1948 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1949 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1950 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1951 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1952 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1953
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1954
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1955 size_t SpaceManager::sum_used_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1956 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1957 size_t used = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1958 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1959 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1960 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1961 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1962 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1963 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1964 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1965 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1966 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1967
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1968 void SpaceManager::locked_print_chunks_in_use_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1969
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1970 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1971 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1972 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1973 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1974 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1975 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1976 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1977 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1978 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1979 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1980 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1981
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1982 vs_list()->chunk_manager()->locked_print_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1983 vs_list()->chunk_manager()->locked_print_sum_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1984 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1985
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1986 size_t SpaceManager::calc_chunk_size(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1987
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1988 // Decide between a small chunk and a medium chunk. Up to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1989 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1990 // once a medium chunk has been allocated, no more small
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1991 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1992 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1993 if (chunks_in_use(MediumIndex) == NULL &&
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	1994 sum_count_in_chunks_in_use(SmallIndex) < _small_chunk_limit) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1995 chunk_word_size = (size_t) small_chunk_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1996 if (word_size + Metachunk::overhead() > small_chunk_size()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	1997 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1998 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1999 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2000 chunk_word_size = medium_chunk_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2001 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2002
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2003 // Might still need a humongous chunk. Enforce an
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2004 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2005 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2006 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2007 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2008 HumongousChunkGranularity);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2009 chunk_word_size =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2010 MAX2((size_t) chunk_word_size, if_humongous_sized_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2011
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2012 assert(!SpaceManager::is_humongous(word_size) \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2013 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2014 err_msg("Size calculation is wrong, word_size " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2015 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2016 word_size, chunk_word_size));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2017 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2018 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2019 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2020 gclog_or_tty->print_cr(" word_size " PTR_FORMAT, word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2021 gclog_or_tty->print_cr(" chunk_word_size " PTR_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2022 chunk_word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2023 gclog_or_tty->print_cr(" chunk overhead " PTR_FORMAT,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2024 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2025 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2026 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2027 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2028
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2029 MetaWord* SpaceManager::grow_and_allocate(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2030 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2031 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2032 assert(current_chunk() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2033 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2034 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2035 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2036
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2037 if (TraceMetadataChunkAllocation && Verbose) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2038 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2039 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2040 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2041 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2042 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2043 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2044 gclog_or_tty->print_cr("SpaceManager::grow_and_allocate for " SIZE_FORMAT
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2045 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2046 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2047 word_size, words_used, words_left);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2048 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2049
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2050 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2051 size_t grow_chunks_by_words = calc_chunk_size(word_size);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2052 Metachunk* next = get_new_chunk(word_size, grow_chunks_by_words);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2053
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2054 // If a chunk was available, add it to the in-use chunk list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2055 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2056 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2057 Metadebug::deallocate_chunk_a_lot(this, grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2058 // Add to this manager's list of chunks in use.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2059 add_chunk(next, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2060 return next->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2061 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2062 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2063 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2064
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2065 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2066
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2067 for (ChunkIndex i = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2068 i < NumberOfInUseLists ;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2069 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2070 st->print_cr(" chunks_in_use " PTR_FORMAT " chunk size " PTR_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2071 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2072 chunks_in_use(i) == NULL ? 0 : chunks_in_use(i)->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2073 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2074 st->print_cr(" waste: Small " SIZE_FORMAT " Medium " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2075 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2076 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2077 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2078 sum_waste_in_chunks_in_use(HumongousIndex));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2079 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2080 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2081 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2082 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2083 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2084 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2085
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2086 SpaceManager::SpaceManager(Metaspace::MetadataType mdtype,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2087 Mutex* lock,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2088 VirtualSpaceList* vs_list) :
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2089 _vs_list(vs_list),
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2090 _mdtype(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2091 _allocated_blocks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2092 _allocated_chunks_words(0),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2093 _allocated_chunks_count(0),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2094 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2095 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2096 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2097 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2098
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2099 void SpaceManager::inc_size_metrics(size_t words) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2100 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2101 // Total of allocated Metachunks and allocated Metachunks count
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2102 // for each SpaceManager
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2103 _allocated_chunks_words = _allocated_chunks_words + words;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2104 _allocated_chunks_count++;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2105 // Global total of capacity in allocated Metachunks
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2106 MetaspaceAux::inc_capacity(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2107 // Global total of allocated Metablocks.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2108 // used_words_slow() includes the overhead in each
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2109 // Metachunk so include it in the used when the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2110 // Metachunk is first added (so only added once per
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2111 // Metachunk).
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2112 MetaspaceAux::inc_used(mdtype(), Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2113 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2114
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2115 void SpaceManager::inc_used_metrics(size_t words) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2116 // Add to the per SpaceManager total
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2117 Atomic::add_ptr(words, &_allocated_blocks_words);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2118 // Add to the global total
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2119 MetaspaceAux::inc_used(mdtype(), words);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2120 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2121
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2122 void SpaceManager::dec_total_from_size_metrics() {
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2123 MetaspaceAux::dec_capacity(mdtype(), allocated_chunks_words());
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2124 MetaspaceAux::dec_used(mdtype(), allocated_blocks_words());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2125 // Also deduct the overhead per Metachunk
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2126 MetaspaceAux::dec_used(mdtype(), allocated_chunks_count() * Metachunk::overhead());
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2127 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2128
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2129 void SpaceManager::initialize() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2130 Metadebug::init_allocation_fail_alot_count();
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2131 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2132 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2133 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2134 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2135 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2136 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2137 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2138 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2139
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2140 void ChunkManager::return_chunks(ChunkIndex index, Metachunk* chunks) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2141 if (chunks == NULL) {
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2142 return;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2143 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2144 ChunkList* list = free_chunks(index);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2145 assert(list->size() == chunks->word_size(), "Mismatch in chunk sizes");
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2146 assert_lock_strong(SpaceManager::expand_lock());
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2147 Metachunk* cur = chunks;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2148
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2149 // This returns chunks one at a time. If a new
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2150 // class List can be created that is a base class
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2151 // of FreeList then something like FreeList::prepend()
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2152 // can be used in place of this loop
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2153 while (cur != NULL) {
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2154 assert(cur->container() != NULL, "Container should have been set");
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2155 cur->container()->dec_container_count();
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2156 // Capture the next link before it is changed
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2157 // by the call to return_chunk_at_head();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2158 Metachunk* next = cur->next();
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2159 cur->set_is_free(true);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2160 list->return_chunk_at_head(cur);
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2161 cur = next;
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2162 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2163 }
df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2164
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2165 SpaceManager::~SpaceManager() {
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2166 // This call this->_lock which can't be done while holding expand_lock()
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2167 assert(sum_capacity_in_chunks_in_use() == allocated_chunks_words(),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2168 err_msg("sum_capacity_in_chunks_in_use() " SIZE_FORMAT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2169 " allocated_chunks_words() " SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2170 sum_capacity_in_chunks_in_use(), allocated_chunks_words()));
8784 79af1312fc2c 8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used mgerdin parents: 8738 diff changeset	2171
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2172 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2173 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2174
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2175 ChunkManager* chunk_manager = vs_list()->chunk_manager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2176
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2177 chunk_manager->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2178
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2179 dec_total_from_size_metrics();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2180
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2181 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2182 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2183 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2184 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2185
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2186 // Do not mangle freed Metachunks. The chunk size inside Metachunks
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2187 // is during the freeing of a VirtualSpaceNodes.
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2188
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2189 // Have to update before the chunks_in_use lists are emptied
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2190 // below.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2191 chunk_manager->inc_free_chunks_total(allocated_chunks_words(),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2192 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2193
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2194 // Add all the chunks in use by this space manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2195 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2196
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2197 // Follow each list of chunks-in-use and add them to the
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2198 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2199
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2200 for (ChunkIndex i = ZeroIndex; i < HumongousIndex; i = next_chunk_index(i)) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2201 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2202 gclog_or_tty->print_cr("returned %d %s chunks to freelist",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2203 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2204 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2205 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2206 Metachunk* chunks = chunks_in_use(i);
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2207 chunk_manager->return_chunks(i, chunks);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2208 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2209 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2210 gclog_or_tty->print_cr("updated freelist count %d %s",
10101 df254344edf1 8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk> jmasa parents: 8813 diff changeset	2211 chunk_manager->free_chunks(i)->count(),
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2212 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2213 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2214 assert(i != HumongousIndex, "Humongous chunks are handled explicitly later");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2215 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2216
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2217 // The medium chunk case may be optimized by passing the head and
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2218 // tail of the medium chunk list to add_at_head(). The tail is often
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2219 // the current chunk but there are probably exceptions.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2220
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2221 // Humongous chunks
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2222 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2223 gclog_or_tty->print_cr("returned %d %s humongous chunks to dictionary",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2224 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2225 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2226 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2227 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2228 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2229 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2230
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2231 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2232 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2233 humongous_chunks->set_is_free(true);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2234 #endif
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2235 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2236 gclog_or_tty->print(PTR_FORMAT " (" SIZE_FORMAT ") ",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2237 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2238 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2239 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2240 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2241 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2242 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2243 err_msg("Humongous chunk size is wrong: word size " SIZE_FORMAT
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2244 " granularity %d",
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2245 humongous_chunks->word_size(), HumongousChunkGranularity));
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2246 Metachunk* next_humongous_chunks = humongous_chunks->next();
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	2247 humongous_chunks->container()->dec_container_count();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2248 chunk_manager->humongous_dictionary()->return_chunk(humongous_chunks);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2249 humongous_chunks = next_humongous_chunks;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2250 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2251 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2252 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2253 gclog_or_tty->print_cr("updated dictionary count %d %s",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2254 chunk_manager->humongous_dictionary()->total_count(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2255 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2256 }
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2257 chunk_manager->slow_locked_verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2258 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2259
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2260 const char* SpaceManager::chunk_size_name(ChunkIndex index) const {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2261 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2262 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2263 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2264 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2265 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2266 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2267 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2268 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2269 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2270 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2271 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2272 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2273 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2274
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2275 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2276 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2277 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2278 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2279 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2280 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2281 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2282 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2283 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2284 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2285 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2286 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2287 default:
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2288 assert(size > MediumChunk \|\| size > ClassMediumChunk,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2289 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2290 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2291 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2292 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2293
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2294 void SpaceManager::deallocate(MetaWord* p, size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2295 assert_lock_strong(_lock);
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2296 size_t raw_word_size = get_raw_word_size(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2297 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2298 assert(raw_word_size >= min_size,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2299 err_msg("Should not deallocate dark matter " SIZE_FORMAT "<" SIZE_FORMAT, word_size, min_size));
11966 83ca9dc4564d 8019845: Memory leak during class redefinition fparain parents: 11065 diff changeset	2300 block_freelists()->return_block(p, raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2301 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2302
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2303 // Adds a chunk to the list of chunks in use.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2304 void SpaceManager::add_chunk(Metachunk* new_chunk, bool make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2305
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2306 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2307 assert(new_chunk->next() == NULL, "Should not be on a list");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2308
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2309 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2310
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2311 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2312 // chunk for that list.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2313 ChunkIndex index = ChunkManager::list_index(new_chunk->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2314
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2315 if (index != HumongousIndex) {
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2316 retire_current_chunk();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2317 set_current_chunk(new_chunk);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2318 new_chunk->set_next(chunks_in_use(index));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2319 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2320 } else {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2321 // For null class loader data and DumpSharedSpaces, the first chunk isn't
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2322 // small, so small will be null. Link this first chunk as the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2323 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2324 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2325 // Set as the current chunk but otherwise treat as a humongous chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2326 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2327 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2328 // Link at head. The _current_chunk only points to a humongous chunk for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2329 // the null class loader metaspace (class and data virtual space managers)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2330 // any humongous chunks so will not point to the tail
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2331 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2332 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2333 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2334
7447 1de1b145f6bc 8005486: NPG: Incorrect assertion in ChunkManager::list_index() jmasa parents: 7446 diff changeset	2335 assert(new_chunk->word_size() > medium_chunk_size(), "List inconsistency");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2336 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2337
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2338 // Add to the running sum of capacity
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2339 inc_size_metrics(new_chunk->word_size());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2340
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2341 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2342 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2343 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2344 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2345 new_chunk->print_on(gclog_or_tty);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2346 if (vs_list() != NULL) {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2347 vs_list()->chunk_manager()->locked_print_free_chunks(tty);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2348 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2349 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2350 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2351
12231 24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2352 void SpaceManager::retire_current_chunk() {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2353 if (current_chunk() != NULL) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2354 size_t remaining_words = current_chunk()->free_word_size();
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2355 if (remaining_words >= TreeChunk<Metablock, FreeList>::min_size()) {
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2356 block_freelists()->return_block(current_chunk()->allocate(remaining_words), remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2357 inc_used_metrics(remaining_words);
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2358 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2359 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2360 }
24e87613ee58 8009561: NPG: Metaspace fragmentation when retiring a Metachunk mgerdin parents: 12226 diff changeset	2361
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2362 Metachunk* SpaceManager::get_new_chunk(size_t word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2363 size_t grow_chunks_by_words) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2364
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2365 Metachunk* next = vs_list()->get_new_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2366 grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2367 medium_chunk_bunch());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2368
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2369 if (TraceMetadataHumongousAllocation && next != NULL &&
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2370 SpaceManager::is_humongous(next->word_size())) {
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2371 gclog_or_tty->print_cr(" new humongous chunk word size "
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2372 PTR_FORMAT, next->word_size());
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2373 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2374
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2375 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2376 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2377
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2378 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2379 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2380
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	2381 size_t raw_word_size = get_raw_word_size(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2382 BlockFreelist* fl = block_freelists();
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2383 MetaWord* p = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2384 // Allocation from the dictionary is expensive in the sense that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2385 // the dictionary has to be searched for a size. Don't allocate
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2386 // from the dictionary until it starts to get fat. Is this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2387 // a reasonable policy? Maybe an skinny dictionary is fast enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2388 // for allocations. Do some profiling. JJJ
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2389 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2390 p = fl->get_block(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2391 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2392 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2393 p = allocate_work(raw_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2394 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2395 Metadebug::deallocate_block_a_lot(this, raw_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2396
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2397 return p;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2398 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2399
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2400 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2401 // This methods does not know about blocks (Metablocks)
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2402 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2403 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2404 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2405 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2406 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2407 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2408 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2409 // Is there space in the current chunk?
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2410 MetaWord* result = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2411
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2412 // For DumpSharedSpaces, only allocate out of the current chunk which is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2413 // never null because we gave it the size we wanted. Caller reports out
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2414 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2415 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2416 assert(current_chunk() != NULL, "should never happen");
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2417 inc_used_metrics(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2418 return current_chunk()->allocate(word_size); // caller handles null result
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2419 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2420 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2421 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2422 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2423
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2424 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2425 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2426 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2427 if (result != 0) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2428 inc_used_metrics(word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2429 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2430 "Head of the list is being allocated");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2431 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2432
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2433 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2434 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2435
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2436 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2437 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2438 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2439 // being in the dictionary alters a chunk.
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2440 if (block_freelists()->total_size() == 0) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2441 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2442 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2443 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2444 curr->verify();
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2445 verify_chunk_size(curr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2446 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2447 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2448 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2449 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2450 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2451
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2452 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2453 assert(is_humongous(chunk->word_size()) \|\|
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2454 chunk->word_size() == medium_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2455 chunk->word_size() == small_chunk_size() \|\|
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2456 chunk->word_size() == specialized_chunk_size(),
7208 eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2457 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2458 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2459 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp jmasa parents: 7187 diff changeset	2460
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2461 #ifdef ASSERT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2462 void SpaceManager::verify_allocated_blocks_words() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2463 // Verification is only guaranteed at a safepoint.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2464 assert(SafepointSynchronize::is_at_safepoint() \|\| !Universe::is_fully_initialized(),
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2465 "Verification can fail if the applications is running");
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2466 assert(allocated_blocks_words() == sum_used_in_chunks_in_use(),
8007 d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2467 err_msg("allocation total is not consistent " SIZE_FORMAT
d9058e388631 8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg mikael parents: 7447 diff changeset	2468 " vs " SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2469 allocated_blocks_words(), sum_used_in_chunks_in_use()));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2470 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2471
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2472 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2473
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2474 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2475 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2476 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2477 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2478 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2479 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2480
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2481 // Add up statistics for all chunks in this SpaceManager.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2482 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2483 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2484 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2485 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2486 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2487 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2488 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2489 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2490 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2491 used += curr->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2492 capacity += curr->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2493 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2494 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2495 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2496
12239 8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2497 if (TraceMetadataChunkAllocation && Verbose) {
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2498 block_freelists()->print_on(out);
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2499 }
8227700da288 8024751: Fix bugs in TraceMetadata stefank parents: 12237 diff changeset	2500
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2501 size_t free = current_chunk() == NULL ? 0 : current_chunk()->free_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2502 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2503 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2504
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2505 out->print_cr("total of all chunks " SIZE_FORMAT " used " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2506 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2507 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2508 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2509
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2510 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2511 void SpaceManager::mangle_freed_chunks() {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2512 for (ChunkIndex index = ZeroIndex;
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	2513 index < NumberOfInUseLists;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2514 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2515 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2516 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2517 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2518 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2519 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2520 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2521 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6969 diff changeset	2522 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2523
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2524 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2525
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2526
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2527 size_t MetaspaceAux::_allocated_capacity_words[] = {0, 0};
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2528 size_t MetaspaceAux::_allocated_used_words[] = {0, 0};
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2529
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2530 size_t MetaspaceAux::free_bytes(Metaspace::MetadataType mdtype) {
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2531 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2532 return list == NULL ? 0 : list->free_bytes();
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2533 }
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2534
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2535 size_t MetaspaceAux::free_bytes() {
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2536 return free_bytes(Metaspace::ClassType) + free_bytes(Metaspace::NonClassType);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2537 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2538
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2539 void MetaspaceAux::dec_capacity(Metaspace::MetadataType mdtype, size_t words) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2540 assert_lock_strong(SpaceManager::expand_lock());
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2541 assert(words <= allocated_capacity_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2542 err_msg("About to decrement below 0: words " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2543 " is greater than _allocated_capacity_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2544 words, mdtype, allocated_capacity_words(mdtype)));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2545 _allocated_capacity_words[mdtype] -= words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2546 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2547
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2548 void MetaspaceAux::inc_capacity(Metaspace::MetadataType mdtype, size_t words) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2549 assert_lock_strong(SpaceManager::expand_lock());
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2550 // Needs to be atomic
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2551 _allocated_capacity_words[mdtype] += words;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2552 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2553
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2554 void MetaspaceAux::dec_used(Metaspace::MetadataType mdtype, size_t words) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2555 assert(words <= allocated_used_words(mdtype),
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2556 err_msg("About to decrement below 0: words " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2557 " is greater than _allocated_used_words[%u] " SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2558 words, mdtype, allocated_used_words(mdtype)));
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2559 // For CMS deallocation of the Metaspaces occurs during the
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2560 // sweep which is a concurrent phase. Protection by the expand_lock()
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2561 // is not enough since allocation is on a per Metaspace basis
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2562 // and protected by the Metaspace lock.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2563 jlong minus_words = (jlong) - (jlong) words;
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2564 Atomic::add_ptr(minus_words, &_allocated_used_words[mdtype]);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2565 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2566
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2567 void MetaspaceAux::inc_used(Metaspace::MetadataType mdtype, size_t words) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2568 // _allocated_used_words tracks allocations for
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2569 // each piece of metadata. Those allocations are
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2570 // generally done concurrently by different application
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2571 // threads so must be done atomically.
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2572 Atomic::add_ptr(words, &_allocated_used_words[mdtype]);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2573 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2574
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2575 size_t MetaspaceAux::used_bytes_slow(Metaspace::MetadataType mdtype) {
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2576 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2577 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2578 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2579 Metaspace* msp = iter.get_next();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2580 // Sum allocated_blocks_words for each metaspace
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2581 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2582 used += msp->used_words_slow(mdtype);
6730 5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2583 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2584 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2585 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2586 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong jmasa parents: 6726 diff changeset	2587
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2588 size_t MetaspaceAux::free_bytes_slow(Metaspace::MetadataType mdtype) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2589 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2590 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2591 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2592 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2593 if (msp != NULL) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2594 free += msp->free_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2595 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2596 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2597 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2598 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2599
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2600 size_t MetaspaceAux::capacity_bytes_slow(Metaspace::MetadataType mdtype) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2601 if ((mdtype == Metaspace::ClassType) && !Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2602 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2603 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2604 // Don't count the space in the freelists. That space will be
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2605 // added to the capacity calculation as needed.
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2606 size_t capacity = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2607 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2608 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2609 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2610 if (msp != NULL) {
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2611 capacity += msp->capacity_words_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2612 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2613 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2614 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2615 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2616
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2617 size_t MetaspaceAux::capacity_bytes_slow() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2618 #ifdef PRODUCT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2619 // Use allocated_capacity_bytes() in PRODUCT instead of this function.
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2620 guarantee(false, "Should not call capacity_bytes_slow() in the PRODUCT");
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2621 #endif
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2622 size_t class_capacity = capacity_bytes_slow(Metaspace::ClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2623 size_t non_class_capacity = capacity_bytes_slow(Metaspace::NonClassType);
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2624 assert(allocated_capacity_bytes() == class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2625 err_msg("bad accounting: allocated_capacity_bytes() " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2626 " class_capacity + non_class_capacity " SIZE_FORMAT
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2627 " class_capacity " SIZE_FORMAT " non_class_capacity " SIZE_FORMAT,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2628 allocated_capacity_bytes(), class_capacity + non_class_capacity,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2629 class_capacity, non_class_capacity));
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2630
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2631 return class_capacity + non_class_capacity;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2632 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2633
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2634 size_t MetaspaceAux::reserved_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2635 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2636 return list == NULL ? 0 : list->reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2637 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2638
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2639 size_t MetaspaceAux::committed_bytes(Metaspace::MetadataType mdtype) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2640 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	2641 return list == NULL ? 0 : list->committed_bytes();
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2642 }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2643
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2644 size_t MetaspaceAux::min_chunk_size_words() { return Metaspace::first_chunk_word_size(); }
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2645
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2646 size_t MetaspaceAux::free_chunks_total_words(Metaspace::MetadataType mdtype) {
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2647 VirtualSpaceList* list = Metaspace::get_space_list(mdtype);
1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2648 if (list == NULL) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2649 return 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2650 }
12063 1a8fb39bdbc4 8014659: NPG: performance counters for compressed klass space ehelin parents: 12056 diff changeset	2651 ChunkManager* chunk = list->chunk_manager();
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2652 chunk->slow_verify();
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2653 return chunk->free_chunks_total_words();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2654 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2655
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2656 size_t MetaspaceAux::free_chunks_total_bytes(Metaspace::MetadataType mdtype) {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2657 return free_chunks_total_words(mdtype) * BytesPerWord;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2658 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2659
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2660 size_t MetaspaceAux::free_chunks_total_words() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2661 return free_chunks_total_words(Metaspace::ClassType) +
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2662 free_chunks_total_words(Metaspace::NonClassType);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2663 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2664
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2665 size_t MetaspaceAux::free_chunks_total_bytes() {
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2666 return free_chunks_total_words() * BytesPerWord;
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2667 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2668
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2669 void MetaspaceAux::print_metaspace_change(size_t prev_metadata_used) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2670 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2671 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2672 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2673 "->" SIZE_FORMAT
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2674 "(" SIZE_FORMAT ")",
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2675 prev_metadata_used,
11037 df7e1c0e3dc1 8014546: MetaspaceAux print_metaspace_change() should print "used" after GC not capacity jmasa parents: 10376 diff changeset	2676 allocated_used_bytes(),
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2677 reserved_bytes());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2678 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2679 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2680 "->" SIZE_FORMAT "K"
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2681 "(" SIZE_FORMAT "K)",
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2682 prev_metadata_used/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2683 allocated_used_bytes()/K,
d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2684 reserved_bytes()/K);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2685 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2686
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2687 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2688 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2689
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2690 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2691 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2692 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2693
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2694 out->print_cr(" Metaspace total "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2695 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2696 " reserved " SIZE_FORMAT "K",
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2697 allocated_capacity_bytes()/K, allocated_used_bytes()/K, reserved_bytes()/K);
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2698
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2699 out->print_cr(" data space "
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2700 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2701 " reserved " SIZE_FORMAT "K",
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2702 allocated_capacity_bytes(nct)/K,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2703 allocated_used_bytes(nct)/K,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2704 reserved_bytes(nct)/K);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2705 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2706 Metaspace::MetadataType ct = Metaspace::ClassType;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2707 out->print_cr(" class space "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2708 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2709 " reserved " SIZE_FORMAT "K",
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2710 allocated_capacity_bytes(ct)/K,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2711 allocated_used_bytes(ct)/K,
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2712 reserved_bytes(ct)/K);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2713 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2714 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2715
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2716 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2717 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2718 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2719 size_t free_chunks_capacity_bytes = free_chunks_total_bytes(mdtype);
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2720 size_t capacity_bytes = capacity_bytes_slow(mdtype);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2721 size_t used_bytes = used_bytes_slow(mdtype);
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	2722 size_t free_bytes = free_bytes_slow(mdtype);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2723 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2724 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2725 out->print_cr(" Chunk accounting: used in chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2726 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2727 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2728 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2729 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2730 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2731 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2732 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2733 capacity_bytes / K);
8738 1c88b99a2b01 8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation mgerdin parents: 8040 diff changeset	2734 // Accounting can only be correct if we got the values during a safepoint
1c88b99a2b01 8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation mgerdin parents: 8040 diff changeset	2735 assert(!SafepointSynchronize::is_at_safepoint() \|\| used_and_free == capacity_bytes, "Accounting is wrong");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2736 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2737
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2738 // Print total fragmentation for class metaspaces
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2739 void MetaspaceAux::print_class_waste(outputStream* out) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2740 assert(Metaspace::using_class_space(), "class metaspace not used");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2741 size_t cls_specialized_waste = 0, cls_small_waste = 0, cls_medium_waste = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2742 size_t cls_specialized_count = 0, cls_small_count = 0, cls_medium_count = 0, cls_humongous_count = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2743 ClassLoaderDataGraphMetaspaceIterator iter;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2744 while (iter.repeat()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2745 Metaspace* msp = iter.get_next();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2746 if (msp != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2747 cls_specialized_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2748 cls_specialized_count += msp->class_vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2749 cls_small_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SmallIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2750 cls_small_count += msp->class_vsm()->sum_count_in_chunks_in_use(SmallIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2751 cls_medium_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(MediumIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2752 cls_medium_count += msp->class_vsm()->sum_count_in_chunks_in_use(MediumIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2753 cls_humongous_count += msp->class_vsm()->sum_count_in_chunks_in_use(HumongousIndex);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2754 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2755 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2756 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2757 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2758 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2759 "large count " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2760 cls_specialized_count, cls_specialized_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2761 cls_small_count, cls_small_waste,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2762 cls_medium_count, cls_medium_waste, cls_humongous_count);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2763 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2764
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2765 // Print total fragmentation for data and class metaspaces separately
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2766 void MetaspaceAux::print_waste(outputStream* out) {
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2767 size_t specialized_waste = 0, small_waste = 0, medium_waste = 0;
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2768 size_t specialized_count = 0, small_count = 0, medium_count = 0, humongous_count = 0;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2769
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2770 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2771 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2772 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2773 if (msp != NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2774 specialized_waste += msp->vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2775 specialized_count += msp->vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2776 small_waste += msp->vsm()->sum_waste_in_chunks_in_use(SmallIndex);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2777 small_count += msp->vsm()->sum_count_in_chunks_in_use(SmallIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2778 medium_waste += msp->vsm()->sum_waste_in_chunks_in_use(MediumIndex);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2779 medium_count += msp->vsm()->sum_count_in_chunks_in_use(MediumIndex);
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2780 humongous_count += msp->vsm()->sum_count_in_chunks_in_use(HumongousIndex);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2781 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2782 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2783 out->print_cr("Total fragmentation waste (words) doesn't count free space");
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2784 out->print_cr(" data: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2785 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2786 SIZE_FORMAT " medium(s) " SIZE_FORMAT ", "
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2787 "large count " SIZE_FORMAT,
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2788 specialized_count, specialized_waste, small_count,
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	2789 small_waste, medium_count, medium_waste, humongous_count);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2790 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2791 print_class_waste(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2792 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2793 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2794
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2795 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2796 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2797 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2798 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2799 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2800 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2801 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2802
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2803 void MetaspaceAux::verify_free_chunks() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2804 Metaspace::space_list()->chunk_manager()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2805 if (Metaspace::using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2806 Metaspace::class_space_list()->chunk_manager()->verify();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2807 }
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2808 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6885 diff changeset	2809
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2810 void MetaspaceAux::verify_capacity() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2811 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2812 size_t running_sum_capacity_bytes = allocated_capacity_bytes();
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2813 // For purposes of the running sum of capacity, verify against capacity
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2814 size_t capacity_in_use_bytes = capacity_bytes_slow();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2815 assert(running_sum_capacity_bytes == capacity_in_use_bytes,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2816 err_msg("allocated_capacity_words() * BytesPerWord " SIZE_FORMAT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2817 " capacity_bytes_slow()" SIZE_FORMAT,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2818 running_sum_capacity_bytes, capacity_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2819 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2820 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2821 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2822 size_t capacity_in_use_bytes = capacity_bytes_slow(i);
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2823 assert(allocated_capacity_bytes(i) == capacity_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2824 err_msg("allocated_capacity_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2825 " capacity_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2826 i, allocated_capacity_bytes(i), i, capacity_in_use_bytes));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2827 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2828 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2829 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2830
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2831 void MetaspaceAux::verify_used() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2832 #ifdef ASSERT
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2833 size_t running_sum_used_bytes = allocated_used_bytes();
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2834 // For purposes of the running sum of used, verify against used
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2835 size_t used_in_use_bytes = used_bytes_slow();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2836 assert(allocated_used_bytes() == used_in_use_bytes,
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2837 err_msg("allocated_used_bytes() " SIZE_FORMAT
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2838 " used_bytes_slow()" SIZE_FORMAT,
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2839 allocated_used_bytes(), used_in_use_bytes));
10330 2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2840 for (Metaspace::MetadataType i = Metaspace::ClassType;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2841 i < Metaspace:: MetadataTypeCount;
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2842 i = (Metaspace::MetadataType)(i + 1)) {
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2843 size_t used_in_use_bytes = used_bytes_slow(i);
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2844 assert(allocated_used_bytes(i) == used_in_use_bytes,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2845 err_msg("allocated_used_bytes(%u) " SIZE_FORMAT
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2846 " used_bytes_slow(%u)" SIZE_FORMAT,
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2847 i, allocated_used_bytes(i), i, used_in_use_bytes));
2b1a9d972fc2 8014862: Add fast Metasapce capacity and used per MetadataType jmasa parents: 10191 diff changeset	2848 }
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2849 #endif
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2850 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2851
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2852 void MetaspaceAux::verify_metrics() {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2853 verify_capacity();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2854 verify_used();
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2855 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2856
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	2857
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2858 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2859
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2860 size_t Metaspace::_first_chunk_word_size = 0;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2861 size_t Metaspace::_first_class_chunk_word_size = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2862
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2863 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	2864 initialize(lock, type);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2865 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2866
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2867 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2868 delete _vsm;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2869 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2870 delete _class_vsm;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2871 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2872 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2874 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2875 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2876
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2877 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2878
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2879 #ifdef _LP64
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2880 void Metaspace::set_narrow_klass_base_and_shift(address metaspace_base, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2881 // Figure out the narrow_klass_base and the narrow_klass_shift. The
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2882 // narrow_klass_base is the lower of the metaspace base and the cds base
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2883 // (if cds is enabled). The narrow_klass_shift depends on the distance
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2884 // between the lower base and higher address.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2885 address lower_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2886 address higher_address;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2887 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2888 higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2889 (address)(metaspace_base + class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2890 lower_base = MIN2(metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2891 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2892 higher_address = metaspace_base + class_metaspace_size();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2893 lower_base = metaspace_base;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2894 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2895 Universe::set_narrow_klass_base(lower_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2896 if ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2897 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2898 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2899 assert(!UseSharedSpaces, "Cannot shift with UseSharedSpaces");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2900 Universe::set_narrow_klass_shift(LogKlassAlignmentInBytes);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2901 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2902 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2903
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2904 // Return TRUE if the specified metaspace_base and cds_base are close enough
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2905 // to work with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2906 bool Metaspace::can_use_cds_with_metaspace_addr(char* metaspace_base, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2907 assert(cds_base != 0 && UseSharedSpaces, "Only use with CDS");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2908 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2909 address lower_base = MIN2((address)metaspace_base, cds_base);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2910 address higher_address = MAX2((address)(cds_base + FileMapInfo::shared_spaces_size()),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2911 (address)(metaspace_base + class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2912 return ((uint64_t)(higher_address - lower_base) < (uint64_t)max_juint);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2913 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2914
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2915 // Try to allocate the metaspace at the requested addr.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2916 void Metaspace::allocate_metaspace_compressed_klass_ptrs(char* requested_addr, address cds_base) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2917 assert(using_class_space(), "called improperly");
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2918 assert(UseCompressedClassPointers, "Only use with CompressedKlassPtrs");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2919 assert(class_metaspace_size() < KlassEncodingMetaspaceMax,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2920 "Metaspace size is too big");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2921
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2922 ReservedSpace metaspace_rs = ReservedSpace(class_metaspace_size(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2923 os::vm_allocation_granularity(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2924 false, requested_addr, 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2925 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2926 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2927 // Keep trying to allocate the metaspace, increasing the requested_addr
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2928 // by 1GB each time, until we reach an address that will no longer allow
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2929 // use of CDS with compressed klass pointers.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2930 char *addr = requested_addr;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2931 while (!metaspace_rs.is_reserved() && (addr + 1*G > addr) &&
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2932 can_use_cds_with_metaspace_addr(addr + 1*G, cds_base)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2933 addr = addr + 1*G;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2934 metaspace_rs = ReservedSpace(class_metaspace_size(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2935 os::vm_allocation_granularity(), false, addr, 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2936 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2937 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2938
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2939 // If no successful allocation then try to allocate the space anywhere. If
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2940 // that fails then OOM doom. At this point we cannot try allocating the
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2941 // metaspace as if UseCompressedClassPointers is off because too much
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2942 // initialization has happened that depends on UseCompressedClassPointers.
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2943 // So, UseCompressedClassPointers cannot be turned off at this point.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2944 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2945 metaspace_rs = ReservedSpace(class_metaspace_size(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2946 os::vm_allocation_granularity(), false);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2947 if (!metaspace_rs.is_reserved()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2948 vm_exit_during_initialization(err_msg("Could not allocate metaspace: %d bytes",
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2949 class_metaspace_size()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2950 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2951 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2952 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2953
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2954 // If we got here then the metaspace got allocated.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2955 MemTracker::record_virtual_memory_type((address)metaspace_rs.base(), mtClass);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2956
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2957 // Verify that we can use shared spaces. Otherwise, turn off CDS.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2958 if (UseSharedSpaces && !can_use_cds_with_metaspace_addr(metaspace_rs.base(), cds_base)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2959 FileMapInfo::stop_sharing_and_unmap(
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2960 "Could not allocate metaspace at a compatible address");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2961 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2962
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2963 set_narrow_klass_base_and_shift((address)metaspace_rs.base(),
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2964 UseSharedSpaces ? (address)cds_base : 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2965
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2966 initialize_class_space(metaspace_rs);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2967
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2968 if (PrintCompressedOopsMode \|\| (PrintMiscellaneous && Verbose)) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2969 gclog_or_tty->print_cr("Narrow klass base: " PTR_FORMAT ", Narrow klass shift: " SIZE_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2970 Universe::narrow_klass_base(), Universe::narrow_klass_shift());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2971 gclog_or_tty->print_cr("Metaspace Size: " SIZE_FORMAT " Address: " PTR_FORMAT " Req Addr: " PTR_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2972 class_metaspace_size(), metaspace_rs.base(), requested_addr);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2973 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2974 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2975
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2976 // For UseCompressedClassPointers the class space is reserved above the top of
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2977 // the Java heap. The argument passed in is at the base of the compressed space.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2978 void Metaspace::initialize_class_space(ReservedSpace rs) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2979 // The reserved space size may be bigger because of alignment, esp with UseLargePages
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2980 assert(rs.size() >= CompressedClassSpaceSize,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2981 err_msg(SIZE_FORMAT " != " UINTX_FORMAT, rs.size(), CompressedClassSpaceSize));
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2982 assert(using_class_space(), "Must be using class space");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2983 _class_space_list = new VirtualSpaceList(rs);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2984 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2985
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2986 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2987
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2988 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2989 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2990 int max_alignment = os::vm_page_size();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2991 size_t cds_total = 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2992
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	2993 set_class_metaspace_size(align_size_up(CompressedClassSpaceSize,
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2994 os::vm_allocation_granularity()));
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	2995
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2996 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2997
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2998 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	2999 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3000 SharedReadWriteSize = align_size_up(SharedReadWriteSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3001 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3002 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3003
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3004 // Initialize with the sum of the shared space sizes. The read-only
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3005 // and read write metaspace chunks will be allocated out of this and the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3006 // remainder is the misc code and data chunks.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3007 cds_total = FileMapInfo::shared_spaces_size();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3008 _space_list = new VirtualSpaceList(cds_total/wordSize);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3009
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3010 #ifdef _LP64
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3011 // Set the compressed klass pointer base so that decoding of these pointers works
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3012 // properly when creating the shared archive.
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3013 assert(UseCompressedOops && UseCompressedClassPointers,
7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3014 "UseCompressedOops and UseCompressedClassPointers must be set");
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3015 Universe::set_narrow_klass_base((address)_space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3016 if (TraceMetavirtualspaceAllocation && Verbose) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3017 gclog_or_tty->print_cr("Setting_narrow_klass_base to Address: " PTR_FORMAT,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3018 _space_list->current_virtual_space()->bottom());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3019 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3020
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3021 // Set the shift to zero.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3022 assert(class_metaspace_size() < (uint64_t)(max_juint) - cds_total,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3023 "CDS region is too large");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3024 Universe::set_narrow_klass_shift(0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3025 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3026
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3027 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3028 // If using shared space, open the file that contains the shared space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3029 // and map in the memory before initializing the rest of metaspace (so
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3030 // the addresses don't conflict)
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3031 address cds_address = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3032 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3033 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3034 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3035
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3036 // Open the shared archive file, read and validate the header. If
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3037 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3038 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3039 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3040 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3041 FileMapInfo::set_current_info(mapinfo);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3042 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3043 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3044 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3045 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3046 cds_total = FileMapInfo::shared_spaces_size();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3047 cds_address = (address)mapinfo->region_base(0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3048 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3049
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3050 #ifdef _LP64
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3051 // If UseCompressedClassPointers is set then allocate the metaspace area
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3052 // above the heap and above the CDS area (if it exists).
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3053 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3054 if (UseSharedSpaces) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3055 allocate_metaspace_compressed_klass_ptrs((char *)(cds_address + cds_total), cds_address);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3056 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3057 allocate_metaspace_compressed_klass_ptrs((char *)CompressedKlassPointersBase, 0);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3058 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3059 }
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3060 #endif
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3061
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3062 // Initialize these before initializing the VirtualSpaceList
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3063 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3064 _first_chunk_word_size = align_word_size_up(_first_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3065 // Make the first class chunk bigger than a medium chunk so it's not put
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3066 // on the medium chunk list. The next chunk will be small and progress
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3067 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3068 _first_class_chunk_word_size = MIN2((size_t)MediumChunk*6,
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3069 (CompressedClassSpaceSize/BytesPerWord)*2);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3070 _first_class_chunk_word_size = align_word_size_up(_first_class_chunk_word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3071 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3072 // of the boot class loader size.
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3073 size_t word_size = VIRTUALSPACEMULTIPLIER * first_chunk_word_size();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3074 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3075 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3076 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3077 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3078
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3079 void Metaspace::initialize(Mutex* lock, MetaspaceType type) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3080
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3081 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3082 "Metadata VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3083
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3084 _vsm = new SpaceManager(NonClassType, lock, space_list());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3085 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3086 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3087 }
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3088 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3089 size_t class_word_size;
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3090 vsm()->get_initial_chunk_sizes(type, &word_size, &class_word_size);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3091
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3092 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3093 assert(class_space_list() != NULL,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3094 "Class VirtualSpaceList has not been initialized");
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3095
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3096 // Allocate SpaceManager for classes.
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3097 _class_vsm = new SpaceManager(ClassType, lock, class_space_list());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3098 if (_class_vsm == NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3099 return;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3100 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3101 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3102
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3103 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3104
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3105 // Allocate chunk for metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3106 Metachunk* new_chunk =
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3107 space_list()->get_initialization_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3108 vsm()->medium_chunk_bunch());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3109 assert(!DumpSharedSpaces \|\| new_chunk != NULL, "should have enough space for both chunks");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3110 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3111 // Add to this manager's list of chunks in use and current_chunk().
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3112 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3113 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3114
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3115 // Allocate chunk for class metadata objects
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3116 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3117 Metachunk* class_chunk =
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3118 class_space_list()->get_initialization_chunk(class_word_size,
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3119 class_vsm()->medium_chunk_bunch());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3120 if (class_chunk != NULL) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3121 class_vsm()->add_chunk(class_chunk, true);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3122 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3123 }
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3124
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3125 _alloc_record_head = NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3126 _alloc_record_tail = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3127 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3128
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3129 size_t Metaspace::align_word_size_up(size_t word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3130 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3131 return ReservedSpace::allocation_align_size_up(byte_size) / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3132 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3133
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3134 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3135 // DumpSharedSpaces doesn't use class metadata area (yet)
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3136 // Also, don't use class_vsm() unless UseCompressedClassPointers is true.
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3137 if (mdtype == ClassType && using_class_space()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3138 return class_vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3139 } else {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3140 return vsm()->allocate(word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3141 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3142 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3143
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3144 MetaWord* Metaspace::expand_and_allocate(size_t word_size, MetadataType mdtype) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3145 MetaWord* result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3146 MetaspaceGC::set_expand_after_GC(true);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3147 size_t before_inc = MetaspaceGC::capacity_until_GC();
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3148 size_t delta_bytes = MetaspaceGC::delta_capacity_until_GC(word_size) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3149 MetaspaceGC::inc_capacity_until_GC(delta_bytes);
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3150 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3151 gclog_or_tty->print_cr("Increase capacity to GC from " SIZE_FORMAT
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3152 " to " SIZE_FORMAT, before_inc, MetaspaceGC::capacity_until_GC());
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3153 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3154
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3155 result = allocate(word_size, mdtype);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3156
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3157 return result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3158 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6736 diff changeset	3159
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3160 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3161 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3162 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3163 assert(DumpSharedSpaces, "only useful and valid for dumping shared spaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3164 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3165 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3166
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3167 size_t Metaspace::used_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3168 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3169 return using_class_space() ? class_vsm()->sum_used_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3170 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3171 return vsm()->sum_used_in_chunks_in_use(); // includes overhead!
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3172 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3173 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3174
12235 d6c266999345 8023476: Metaspace capacity > reserved ehelin parents: 12231 diff changeset	3175 size_t Metaspace::free_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3176 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3177 return using_class_space() ? class_vsm()->sum_free_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3178 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3179 return vsm()->sum_free_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3180 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3181 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3182
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3183 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3184 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3185 // have been made. Don't include space in the global freelist and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3186 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3187 // is already counted in some chunk.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3188 size_t Metaspace::capacity_words_slow(MetadataType mdtype) const {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3189 if (mdtype == ClassType) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3190 return using_class_space() ? class_vsm()->sum_capacity_in_chunks_in_use() : 0;
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3191 } else {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3192 return vsm()->sum_capacity_in_chunks_in_use();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3193 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3194 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3195
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3196 size_t Metaspace::used_bytes_slow(MetadataType mdtype) const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3197 return used_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3198 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3199
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3200 size_t Metaspace::capacity_bytes_slow(MetadataType mdtype) const {
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3201 return capacity_words_slow(mdtype) * BytesPerWord;
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3202 }
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10175 diff changeset	3203
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3204 void Metaspace::deallocate(MetaWord* ptr, size_t word_size, bool is_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3205 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3206 assert(Thread::current()->is_VM_thread(), "should be the VM thread");
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3207 // Don't take Heap_lock
10191 601183f604b2 8013129: Possible deadlock with Metaspace locks due to mixed usage of safepoint aware and non-safepoint aware locking mgerdin parents: 10183 diff changeset	3208 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3209 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3210 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3211 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3212 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3213 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3214 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3215 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3216 if (is_class && using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3217 class_vsm()->deallocate(ptr, word_size);
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3218 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3219 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3220 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3221 } else {
10191 601183f604b2 8013129: Possible deadlock with Metaspace locks due to mixed usage of safepoint aware and non-safepoint aware locking mgerdin parents: 10183 diff changeset	3222 MutexLockerEx ml(vsm()->lock(), Mutex::_no_safepoint_check_flag);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3223
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3224 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3225 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3226 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3227 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3228 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3229 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3230 }
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3231 if (is_class && using_class_space()) {
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3232 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3233 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3234 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3235 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3236 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3237 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3238
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3239 Metablock* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3240 bool read_only, MetaspaceObj::Type type, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3241 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3242 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3243 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3244 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3245
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3246 MetadataType mdtype = (type == MetaspaceObj::ClassType) ? ClassType : NonClassType;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3247
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3248 // SSS: Should we align the allocations and make sure the sizes are aligned.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3249 MetaWord* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3250
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3251 assert(loader_data != NULL, "Should never pass around a NULL loader_data. "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3252 "ClassLoaderData::the_null_class_loader_data() should have been used.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3253 // Allocate in metaspaces without taking out a lock, because it deadlocks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3254 // with the SymbolTable_lock. Dumping is single threaded for now. We'll have
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3255 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3256 if (DumpSharedSpaces) {
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3257 assert(type > MetaspaceObj::UnknownType && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3258 Metaspace* space = read_only ? loader_data->ro_metaspace() : loader_data->rw_metaspace();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3259 result = space->allocate(word_size, NonClassType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3260 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3261 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3262 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3263 space->record_allocation(result, type, space->vsm()->get_raw_word_size(word_size));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3264 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3265 return Metablock::initialize(result, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3266 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3267
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3268 result = loader_data->metaspace_non_null()->allocate(word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3269
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3270 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3271 // Try to clean out some memory and retry.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3272 result =
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3273 Universe::heap()->collector_policy()->satisfy_failed_metadata_allocation(
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3274 loader_data, word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3275
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3276 // If result is still null, we are out of memory.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3277 if (result == NULL) {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3278 if (Verbose && TraceMetadataChunkAllocation) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3279 gclog_or_tty->print_cr("Metaspace allocation failed for size "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3280 SIZE_FORMAT, word_size);
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3281 if (loader_data->metaspace_or_null() != NULL) loader_data->dump(gclog_or_tty);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3282 MetaspaceAux::dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7435 diff changeset	3283 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3284 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
12226 7944aba7ba41 8015107: NPG: Use consistent naming for metaspace concepts ehelin parents: 12110 diff changeset	3285 const char* space_string = (mdtype == ClassType) ? "Compressed class space" :
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3286 "Metadata space";
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3287 report_java_out_of_memory(space_string);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3288
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3289 if (JvmtiExport::should_post_resource_exhausted()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3290 JvmtiExport::post_resource_exhausted(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3291 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3292 space_string);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3293 }
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3294 if (mdtype == ClassType) {
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3295 THROW_OOP_0(Universe::out_of_memory_error_class_metaspace());
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3296 } else {
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3297 THROW_OOP_0(Universe::out_of_memory_error_metaspace());
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10376 diff changeset	3298 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3299 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3300 }
6885 685df3c6f84b 7045397: NPG: Add freelists to class loader arenas. jmasa parents: 6786 diff changeset	3301 return Metablock::initialize(result, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3302 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3303
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3304 void Metaspace::record_allocation(void* ptr, MetaspaceObj::Type type, size_t word_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3305 assert(DumpSharedSpaces, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3306
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3307 AllocRecord rec = new AllocRecord((address)ptr, type, (int)word_size HeapWordSize);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3308 if (_alloc_record_head == NULL) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3309 _alloc_record_head = _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3310 } else {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3311 _alloc_record_tail->_next = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3312 _alloc_record_tail = rec;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3313 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3314 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3315
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3316 void Metaspace::iterate(Metaspace::AllocRecordClosure *closure) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3317 assert(DumpSharedSpaces, "unimplemented for !DumpSharedSpaces");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3318
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3319 address last_addr = (address)bottom();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3320
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3321 for (AllocRecord *rec = _alloc_record_head; rec; rec = rec->_next) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3322 address ptr = rec->_ptr;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3323 if (last_addr < ptr) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3324 closure->doit(last_addr, MetaspaceObj::UnknownType, ptr - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3325 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3326 closure->doit(ptr, rec->_type, rec->_byte_size);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3327 last_addr = ptr + rec->_byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3328 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3329
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3330 address top = ((address)bottom()) + used_bytes_slow(Metaspace::NonClassType);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3331 if (last_addr < top) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3332 closure->doit(last_addr, MetaspaceObj::UnknownType, top - last_addr);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3333 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3334 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10330 diff changeset	3335
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3336 void Metaspace::purge() {
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3337 MutexLockerEx cl(SpaceManager::expand_lock(),
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3338 Mutex::_no_safepoint_check_flag);
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3339 space_list()->purge();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3340 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3341 class_space_list()->purge();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3342 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3343 }
c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3344
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3345 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3346 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3347 if (Verbose) {
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3348 vsm()->print_on(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3349 if (using_class_space()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3350 class_vsm()->print_on(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3351 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3352 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3353 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3354
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3355 bool Metaspace::contains(const void * ptr) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3356 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3357 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3358 }
7176 59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3359 // This is checked while unlocked. As long as the virtualspaces are added
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3360 // at the end, the pointer will be in one of them. The virtual spaces
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3361 // aren't deleted presently. When they are, some sort of locking might
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3362 // be needed. Note, locking this can cause inversion problems with the
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call coleenp parents: 6969 diff changeset	3363 // caller in MetaspaceObj::is_metadata() function.
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 10101 diff changeset	3364 return space_list()->contains(ptr) \|\|
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3365 (using_class_space() && class_space_list()->contains(ptr));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3366 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3367
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3368 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3369 vsm()->verify();
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3370 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3371 class_vsm()->verify();
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3372 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3373 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3374
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3375 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3376 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3377 vsm()->dump(out);
12056 740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3378 if (using_class_space()) {
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3379 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3380 class_vsm()->dump(out);
740e263c80c6 8003424: Enable Class Data Sharing for CompressedOops hseigel parents: 11966 diff changeset	3381 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3382 }
12236 c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3383
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3384 /////////////// Unit tests ///////////////
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3385
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3386 #ifndef PRODUCT
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3387
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3388 class MetaspaceAuxTest : AllStatic {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3389 public:
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3390 static void test_reserved() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3391 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3392
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3393 assert(reserved > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3394
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3395 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3396 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3397
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3398 size_t reserved_metadata = MetaspaceAux::reserved_bytes(Metaspace::NonClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3399 assert(reserved_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3400 assert(reserved_metadata <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3401
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3402 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3403 size_t reserved_class = MetaspaceAux::reserved_bytes(Metaspace::ClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3404 assert(reserved_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3405 assert(reserved_class < reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3406 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3407 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3408
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3409 static void test_committed() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3410 size_t committed = MetaspaceAux::committed_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3411
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3412 assert(committed > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3413
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3414 size_t reserved = MetaspaceAux::reserved_bytes();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3415 assert(committed <= reserved, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3416
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3417 size_t committed_metadata = MetaspaceAux::committed_bytes(Metaspace::NonClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3418 assert(committed_metadata > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3419 assert(committed_metadata <= committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3420
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3421 if (UseCompressedClassPointers) {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3422 size_t committed_class = MetaspaceAux::committed_bytes(Metaspace::ClassType);
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3423 assert(committed_class > 0, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3424 assert(committed_class < committed, "assert");
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3425 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3426 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3427
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3428 static void test() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3429 test_reserved();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3430 test_committed();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3431 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3432 };
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3433
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3434 void MetaspaceAux_test() {
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3435 MetaspaceAuxTest::test();
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3436 }
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3437
c4c768305a8f 8024638: Count and expose the amount of committed memory in the metaspaces stefank parents: 12235 diff changeset	3438 #endif

Mercurial > hg > truffle

annotate src/share/vm/memory/metaspace.cpp @ 12239:8227700da288