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

annotate src/share/vm/memory/collectorPolicy.cpp @ 20587:d63ce76a0f0e

8034056: assert(_heap_alignment >= _space_alignment) failed: heap_alignment less than space_alignment Reviewed-by: tschatzl, tamao

author	jmasa
date	Tue, 05 Aug 2014 15:41:12 -0700
parents	833b0f92429a
children	7848fc12602b

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17899 diff changeset	2 * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1387 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1387 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1387 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	26 #include "gc_implementation/shared/adaptiveSizePolicy.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	27 #include "gc_implementation/shared/gcPolicyCounters.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	28 #include "gc_implementation/shared/vmGCOperations.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	29 #include "memory/cardTableRS.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	30 #include "memory/collectorPolicy.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	31 #include "memory/gcLocker.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	32 #include "memory/genCollectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	33 #include "memory/generationSpec.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	34 #include "memory/space.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	35 #include "memory/universe.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	36 #include "runtime/arguments.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	37 #include "runtime/globals_extension.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	38 #include "runtime/handles.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	39 #include "runtime/java.hpp"
7180 f34d701e952e 8003935: Simplify the needed includes for using Thread::current() stefank parents: 6923 diff changeset	40 #include "runtime/thread.inline.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	41 #include "runtime/vmThread.hpp"
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7451 diff changeset	42 #include "utilities/macros.hpp"
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7451 diff changeset	43 #if INCLUDE_ALL_GCS
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	44 #include "gc_implementation/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1888 diff changeset	45 #include "gc_implementation/concurrentMarkSweep/cmsGCAdaptivePolicyCounters.hpp"
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7451 diff changeset	46 #endif // INCLUDE_ALL_GCS
0 a61af66fc99e Initial load duke parents: diff changeset	47
a61af66fc99e Initial load duke parents: diff changeset	48 // CollectorPolicy methods.
a61af66fc99e Initial load duke parents: diff changeset	49
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	50 CollectorPolicy::CollectorPolicy() :
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	51 _space_alignment(0),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	52 _heap_alignment(0),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	53 _initial_heap_byte_size(InitialHeapSize),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	54 _max_heap_byte_size(MaxHeapSize),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	55 _min_heap_byte_size(Arguments::min_heap_size()),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	56 _max_heap_size_cmdline(false),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	57 _size_policy(NULL),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	58 _should_clear_all_soft_refs(false),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	59 _all_soft_refs_clear(false)
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	60 {}
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	61
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	62 #ifdef ASSERT
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	63 void CollectorPolicy::assert_flags() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	64 assert(InitialHeapSize <= MaxHeapSize, "Ergonomics decided on incompatible initial and maximum heap sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	65 assert(InitialHeapSize % _heap_alignment == 0, "InitialHeapSize alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	66 assert(MaxHeapSize % _heap_alignment == 0, "MaxHeapSize alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	67 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	68
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	69 void CollectorPolicy::assert_size_info() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	70 assert(InitialHeapSize == _initial_heap_byte_size, "Discrepancy between InitialHeapSize flag and local storage");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	71 assert(MaxHeapSize == _max_heap_byte_size, "Discrepancy between MaxHeapSize flag and local storage");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	72 assert(_max_heap_byte_size >= _min_heap_byte_size, "Ergonomics decided on incompatible minimum and maximum heap sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	73 assert(_initial_heap_byte_size >= _min_heap_byte_size, "Ergonomics decided on incompatible initial and minimum heap sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	74 assert(_max_heap_byte_size >= _initial_heap_byte_size, "Ergonomics decided on incompatible initial and maximum heap sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	75 assert(_min_heap_byte_size % _heap_alignment == 0, "min_heap_byte_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	76 assert(_initial_heap_byte_size % _heap_alignment == 0, "initial_heap_byte_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	77 assert(_max_heap_byte_size % _heap_alignment == 0, "max_heap_byte_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	78 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	79 #endif // ASSERT
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	80
0 a61af66fc99e Initial load duke parents: diff changeset	81 void CollectorPolicy::initialize_flags() {
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	82 assert(_space_alignment != 0, "Space alignment not set up properly");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	83 assert(_heap_alignment != 0, "Heap alignment not set up properly");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	84 assert(_heap_alignment >= _space_alignment,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	85 err_msg("heap_alignment: " SIZE_FORMAT " less than space_alignment: " SIZE_FORMAT,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	86 _heap_alignment, _space_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	87 assert(_heap_alignment % _space_alignment == 0,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	88 err_msg("heap_alignment: " SIZE_FORMAT " not aligned by space_alignment: " SIZE_FORMAT,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	89 _heap_alignment, _space_alignment));
10239 f14063dcd52a 8013791: G1: G1CollectorPolicy::initialize_flags() may set min_alignment > max_alignment brutisso parents: 10135 diff changeset	90
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	91 if (FLAG_IS_CMDLINE(MaxHeapSize)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	92 if (FLAG_IS_CMDLINE(InitialHeapSize) && InitialHeapSize > MaxHeapSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	93 vm_exit_during_initialization("Initial heap size set to a larger value than the maximum heap size");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	94 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	95 if (_min_heap_byte_size != 0 && MaxHeapSize < _min_heap_byte_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	96 vm_exit_during_initialization("Incompatible minimum and maximum heap sizes specified");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	97 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	98 _max_heap_size_cmdline = true;
10241 d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	99 }
d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	100
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	101 // Check heap parameter properties
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	102 if (InitialHeapSize < M) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	103 vm_exit_during_initialization("Too small initial heap");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	104 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	105 if (_min_heap_byte_size < M) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	106 vm_exit_during_initialization("Too small minimum heap");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	107 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	108
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	109 // User inputs from -Xmx and -Xms must be aligned
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	110 _min_heap_byte_size = align_size_up(_min_heap_byte_size, _heap_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	111 uintx aligned_initial_heap_size = align_size_up(InitialHeapSize, _heap_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	112 uintx aligned_max_heap_size = align_size_up(MaxHeapSize, _heap_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	113
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	114 // Write back to flags if the values changed
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	115 if (aligned_initial_heap_size != InitialHeapSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	116 FLAG_SET_ERGO(uintx, InitialHeapSize, aligned_initial_heap_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	117 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	118 if (aligned_max_heap_size != MaxHeapSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	119 FLAG_SET_ERGO(uintx, MaxHeapSize, aligned_max_heap_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	120 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	121
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	122 if (FLAG_IS_CMDLINE(InitialHeapSize) && _min_heap_byte_size != 0 &&
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	123 InitialHeapSize < _min_heap_byte_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	124 vm_exit_during_initialization("Incompatible minimum and initial heap sizes specified");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	125 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	126 if (!FLAG_IS_DEFAULT(InitialHeapSize) && InitialHeapSize > MaxHeapSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	127 FLAG_SET_ERGO(uintx, MaxHeapSize, InitialHeapSize);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	128 } else if (!FLAG_IS_DEFAULT(MaxHeapSize) && InitialHeapSize > MaxHeapSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	129 FLAG_SET_ERGO(uintx, InitialHeapSize, MaxHeapSize);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	130 if (InitialHeapSize < _min_heap_byte_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	131 _min_heap_byte_size = InitialHeapSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	132 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	133 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	134
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	135 _initial_heap_byte_size = InitialHeapSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	136 _max_heap_byte_size = MaxHeapSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	137
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	138 FLAG_SET_ERGO(uintx, MinHeapDeltaBytes, align_size_up(MinHeapDeltaBytes, _space_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	139
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	140 DEBUG_ONLY(CollectorPolicy::assert_flags();)
0 a61af66fc99e Initial load duke parents: diff changeset	141 }
a61af66fc99e Initial load duke parents: diff changeset	142
a61af66fc99e Initial load duke parents: diff changeset	143 void CollectorPolicy::initialize_size_info() {
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	144 if (PrintGCDetails && Verbose) {
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	145 gclog_or_tty->print_cr("Minimum heap " SIZE_FORMAT " Initial heap "
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	146 SIZE_FORMAT " Maximum heap " SIZE_FORMAT,
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	147 _min_heap_byte_size, _initial_heap_byte_size, _max_heap_byte_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	148 }
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	149
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	150 DEBUG_ONLY(CollectorPolicy::assert_size_info();)
0 a61af66fc99e Initial load duke parents: diff changeset	151 }
a61af66fc99e Initial load duke parents: diff changeset	152
1387 0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	153 bool CollectorPolicy::use_should_clear_all_soft_refs(bool v) {
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	154 bool result = _should_clear_all_soft_refs;
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	155 set_should_clear_all_soft_refs(false);
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	156 return result;
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	157 }
0 a61af66fc99e Initial load duke parents: diff changeset	158
a61af66fc99e Initial load duke parents: diff changeset	159 GenRemSet* CollectorPolicy::create_rem_set(MemRegion whole_heap,
a61af66fc99e Initial load duke parents: diff changeset	160 int max_covered_regions) {
12350 ab68fc0101ce 8025855: Simplify GenRemSet code slightly jwilhelm parents: 12346 diff changeset	161 return new CardTableRS(whole_heap, max_covered_regions);
0 a61af66fc99e Initial load duke parents: diff changeset	162 }
a61af66fc99e Initial load duke parents: diff changeset	163
1387 0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	164 void CollectorPolicy::cleared_all_soft_refs() {
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	165 // If near gc overhear limit, continue to clear SoftRefs. SoftRefs may
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	166 // have been cleared in the last collection but if the gc overhear
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	167 // limit continues to be near, SoftRefs should still be cleared.
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	168 if (size_policy() != NULL) {
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	169 _should_clear_all_soft_refs = size_policy()->gc_overhead_limit_near();
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	170 }
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	171 _all_soft_refs_clear = true;
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	172 }
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	173
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	174 size_t CollectorPolicy::compute_heap_alignment() {
12233 40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	175 // The card marking array and the offset arrays for old generations are
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	176 // committed in os pages as well. Make sure they are entirely full (to
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	177 // avoid partial page problems), e.g. if 512 bytes heap corresponds to 1
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	178 // byte entry and the os page size is 4096, the maximum heap size should
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	179 // be 512*4096 = 2MB aligned.
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	180
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	181 // There is only the GenRemSet in Hotspot and only the GenRemSet::CardTable
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	182 // is supported.
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	183 // Requirements of any new remembered set implementations must be added here.
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	184 size_t alignment = GenRemSet::max_alignment_constraint(GenRemSet::CardTable);
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	185
20587 d63ce76a0f0e 8034056: assert(_heap_alignment >= _space_alignment) failed: heap_alignment less than space_alignment jmasa parents: 20360 diff changeset	186 if (UseLargePages) {
d63ce76a0f0e 8034056: assert(_heap_alignment >= _space_alignment) failed: heap_alignment less than space_alignment jmasa parents: 20360 diff changeset	187 // In presence of large pages we have to make sure that our
d63ce76a0f0e 8034056: assert(_heap_alignment >= _space_alignment) failed: heap_alignment less than space_alignment jmasa parents: 20360 diff changeset	188 // alignment is large page aware.
12233 40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	189 alignment = lcm(os::large_page_size(), alignment);
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	190 }
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	191
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	192 return alignment;
40136aa2cdb1 8010722: assert: failed: heap size is too big for compressed oops tschatzl parents: 12110 diff changeset	193 }
1387 0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	194
0 a61af66fc99e Initial load duke parents: diff changeset	195 // GenCollectorPolicy methods.
a61af66fc99e Initial load duke parents: diff changeset	196
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	197 GenCollectorPolicy::GenCollectorPolicy() :
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	198 _min_gen0_size(0),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	199 _initial_gen0_size(0),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	200 _max_gen0_size(0),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	201 _gen_alignment(0),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	202 _generations(NULL)
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	203 {}
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	204
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	205 size_t GenCollectorPolicy::scale_by_NewRatio_aligned(size_t base_size) {
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	206 return align_size_down_bounded(base_size / (NewRatio + 1), _gen_alignment);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	207 }
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	208
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	209 size_t GenCollectorPolicy::bound_minus_alignment(size_t desired_size,
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	210 size_t maximum_size) {
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	211 size_t max_minus = maximum_size - _gen_alignment;
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	212 return desired_size < max_minus ? desired_size : max_minus;
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	213 }
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	214
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	215
0 a61af66fc99e Initial load duke parents: diff changeset	216 void GenCollectorPolicy::initialize_size_policy(size_t init_eden_size,
a61af66fc99e Initial load duke parents: diff changeset	217 size_t init_promo_size,
a61af66fc99e Initial load duke parents: diff changeset	218 size_t init_survivor_size) {
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	219 const double max_gc_pause_sec = ((double) MaxGCPauseMillis) / 1000.0;
0 a61af66fc99e Initial load duke parents: diff changeset	220 _size_policy = new AdaptiveSizePolicy(init_eden_size,
a61af66fc99e Initial load duke parents: diff changeset	221 init_promo_size,
a61af66fc99e Initial load duke parents: diff changeset	222 init_survivor_size,
8072 fd7b3770c77e 8007764: Wrong initialized value of max_gc_pause_sec for an instance of class AdaptiveSizePolicy tamao parents: 8016 diff changeset	223 max_gc_pause_sec,
0 a61af66fc99e Initial load duke parents: diff changeset	224 GCTimeRatio);
a61af66fc99e Initial load duke parents: diff changeset	225 }
a61af66fc99e Initial load duke parents: diff changeset	226
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	227 size_t GenCollectorPolicy::young_gen_size_lower_bound() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	228 // The young generation must be aligned and have room for eden + two survivors
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	229 return align_size_up(3 * _space_alignment, _gen_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	230 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	231
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	232 #ifdef ASSERT
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	233 void GenCollectorPolicy::assert_flags() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	234 CollectorPolicy::assert_flags();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	235 assert(NewSize >= _min_gen0_size, "Ergonomics decided on a too small young gen size");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	236 assert(NewSize <= MaxNewSize, "Ergonomics decided on incompatible initial and maximum young gen sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	237 assert(FLAG_IS_DEFAULT(MaxNewSize) \|\| MaxNewSize < MaxHeapSize, "Ergonomics decided on incompatible maximum young gen and heap sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	238 assert(NewSize % _gen_alignment == 0, "NewSize alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	239 assert(FLAG_IS_DEFAULT(MaxNewSize) \|\| MaxNewSize % _gen_alignment == 0, "MaxNewSize alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	240 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	241
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	242 void TwoGenerationCollectorPolicy::assert_flags() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	243 GenCollectorPolicy::assert_flags();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	244 assert(OldSize + NewSize <= MaxHeapSize, "Ergonomics decided on incompatible generation and heap sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	245 assert(OldSize % _gen_alignment == 0, "OldSize alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	246 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	247
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	248 void GenCollectorPolicy::assert_size_info() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	249 CollectorPolicy::assert_size_info();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	250 // GenCollectorPolicy::initialize_size_info may update the MaxNewSize
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	251 assert(MaxNewSize < MaxHeapSize, "Ergonomics decided on incompatible maximum young and heap sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	252 assert(NewSize == _initial_gen0_size, "Discrepancy between NewSize flag and local storage");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	253 assert(MaxNewSize == _max_gen0_size, "Discrepancy between MaxNewSize flag and local storage");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	254 assert(_min_gen0_size <= _initial_gen0_size, "Ergonomics decided on incompatible minimum and initial young gen sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	255 assert(_initial_gen0_size <= _max_gen0_size, "Ergonomics decided on incompatible initial and maximum young gen sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	256 assert(_min_gen0_size % _gen_alignment == 0, "_min_gen0_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	257 assert(_initial_gen0_size % _gen_alignment == 0, "_initial_gen0_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	258 assert(_max_gen0_size % _gen_alignment == 0, "_max_gen0_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	259 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	260
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	261 void TwoGenerationCollectorPolicy::assert_size_info() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	262 GenCollectorPolicy::assert_size_info();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	263 assert(OldSize == _initial_gen1_size, "Discrepancy between OldSize flag and local storage");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	264 assert(_min_gen1_size <= _initial_gen1_size, "Ergonomics decided on incompatible minimum and initial old gen sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	265 assert(_initial_gen1_size <= _max_gen1_size, "Ergonomics decided on incompatible initial and maximum old gen sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	266 assert(_max_gen1_size % _gen_alignment == 0, "_max_gen1_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	267 assert(_initial_gen1_size % _gen_alignment == 0, "_initial_gen1_size alignment");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	268 assert(_max_heap_byte_size <= (_max_gen0_size + _max_gen1_size), "Total maximum heap sizes must be sum of generation maximum sizes");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	269 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	270 #endif // ASSERT
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	271
0 a61af66fc99e Initial load duke parents: diff changeset	272 void GenCollectorPolicy::initialize_flags() {
a61af66fc99e Initial load duke parents: diff changeset	273 CollectorPolicy::initialize_flags();
a61af66fc99e Initial load duke parents: diff changeset	274
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	275 assert(_gen_alignment != 0, "Generation alignment not set up properly");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	276 assert(_heap_alignment >= _gen_alignment,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	277 err_msg("heap_alignment: " SIZE_FORMAT " less than gen_alignment: " SIZE_FORMAT,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	278 _heap_alignment, _gen_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	279 assert(_gen_alignment % _space_alignment == 0,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	280 err_msg("gen_alignment: " SIZE_FORMAT " not aligned by space_alignment: " SIZE_FORMAT,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	281 _gen_alignment, _space_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	282 assert(_heap_alignment % _gen_alignment == 0,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	283 err_msg("heap_alignment: " SIZE_FORMAT " not aligned by gen_alignment: " SIZE_FORMAT,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	284 _heap_alignment, _gen_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	285
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	286 // All generational heaps have a youngest gen; handle those flags here
0 a61af66fc99e Initial load duke parents: diff changeset	287
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	288 // Make sure the heap is large enough for two generations
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	289 uintx smallest_new_size = young_gen_size_lower_bound();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	290 uintx smallest_heap_size = align_size_up(smallest_new_size + align_size_up(_space_alignment, _gen_alignment),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	291 _heap_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	292 if (MaxHeapSize < smallest_heap_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	293 FLAG_SET_ERGO(uintx, MaxHeapSize, smallest_heap_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	294 _max_heap_byte_size = MaxHeapSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	295 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	296 // If needed, synchronize _min_heap_byte size and _initial_heap_byte_size
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	297 if (_min_heap_byte_size < smallest_heap_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	298 _min_heap_byte_size = smallest_heap_size;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	299 if (InitialHeapSize < _min_heap_byte_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	300 FLAG_SET_ERGO(uintx, InitialHeapSize, smallest_heap_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	301 _initial_heap_byte_size = smallest_heap_size;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	302 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	303 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	304
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	305 // Now take the actual NewSize into account. We will silently increase NewSize
17899 9eddc467297f 8035057: NewSize ergonomics wrong when setting small or unaligned size on command line sjohanss parents: 17898 diff changeset	306 // if the user specified a smaller or unaligned value.
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	307 smallest_new_size = MAX2(smallest_new_size, (uintx)align_size_down(NewSize, _gen_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	308 if (smallest_new_size != NewSize) {
17899 9eddc467297f 8035057: NewSize ergonomics wrong when setting small or unaligned size on command line sjohanss parents: 17898 diff changeset	309 // Do not use FLAG_SET_ERGO to update NewSize here, since this will override
9eddc467297f 8035057: NewSize ergonomics wrong when setting small or unaligned size on command line sjohanss parents: 17898 diff changeset	310 // if NewSize was set on the command line or not. This information is needed
9eddc467297f 8035057: NewSize ergonomics wrong when setting small or unaligned size on command line sjohanss parents: 17898 diff changeset	311 // later when setting the initial and minimum young generation size.
9eddc467297f 8035057: NewSize ergonomics wrong when setting small or unaligned size on command line sjohanss parents: 17898 diff changeset	312 NewSize = smallest_new_size;
0 a61af66fc99e Initial load duke parents: diff changeset	313 }
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	314 _initial_gen0_size = NewSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	315
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	316 if (!FLAG_IS_DEFAULT(MaxNewSize)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	317 uintx min_new_size = MAX2(_gen_alignment, _min_gen0_size);
0 a61af66fc99e Initial load duke parents: diff changeset	318
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	319 if (MaxNewSize >= MaxHeapSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	320 // Make sure there is room for an old generation
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	321 uintx smaller_max_new_size = MaxHeapSize - _gen_alignment;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	322 if (FLAG_IS_CMDLINE(MaxNewSize)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	323 warning("MaxNewSize (" SIZE_FORMAT "k) is equal to or greater than the entire "
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	324 "heap (" SIZE_FORMAT "k). A new max generation size of " SIZE_FORMAT "k will be used.",
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	325 MaxNewSize/K, MaxHeapSize/K, smaller_max_new_size/K);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	326 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	327 FLAG_SET_ERGO(uintx, MaxNewSize, smaller_max_new_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	328 if (NewSize > MaxNewSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	329 FLAG_SET_ERGO(uintx, NewSize, MaxNewSize);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	330 _initial_gen0_size = NewSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	331 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	332 } else if (MaxNewSize < min_new_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	333 FLAG_SET_ERGO(uintx, MaxNewSize, min_new_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	334 } else if (!is_size_aligned(MaxNewSize, _gen_alignment)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	335 FLAG_SET_ERGO(uintx, MaxNewSize, align_size_down(MaxNewSize, _gen_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	336 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	337 _max_gen0_size = MaxNewSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	338 }
0 a61af66fc99e Initial load duke parents: diff changeset	339
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	340 if (NewSize > MaxNewSize) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	341 // At this point this should only happen if the user specifies a large NewSize and/or
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	342 // a small (but not too small) MaxNewSize.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	343 if (FLAG_IS_CMDLINE(MaxNewSize)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	344 warning("NewSize (" SIZE_FORMAT "k) is greater than the MaxNewSize (" SIZE_FORMAT "k). "
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	345 "A new max generation size of " SIZE_FORMAT "k will be used.",
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	346 NewSize/K, MaxNewSize/K, NewSize/K);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	347 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	348 FLAG_SET_ERGO(uintx, MaxNewSize, NewSize);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	349 _max_gen0_size = MaxNewSize;
0 a61af66fc99e Initial load duke parents: diff changeset	350 }
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	351
0 a61af66fc99e Initial load duke parents: diff changeset	352 if (SurvivorRatio < 1 \|\| NewRatio < 1) {
12831 087f02e22fc2 8025854: Use "young gen" instead of "eden" jwilhelm parents: 12830 diff changeset	353 vm_exit_during_initialization("Invalid young gen ratio specified");
0 a61af66fc99e Initial load duke parents: diff changeset	354 }
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	355
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	356 DEBUG_ONLY(GenCollectorPolicy::assert_flags();)
0 a61af66fc99e Initial load duke parents: diff changeset	357 }
a61af66fc99e Initial load duke parents: diff changeset	358
a61af66fc99e Initial load duke parents: diff changeset	359 void TwoGenerationCollectorPolicy::initialize_flags() {
a61af66fc99e Initial load duke parents: diff changeset	360 GenCollectorPolicy::initialize_flags();
a61af66fc99e Initial load duke parents: diff changeset	361
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	362 if (!is_size_aligned(OldSize, _gen_alignment)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	363 FLAG_SET_ERGO(uintx, OldSize, align_size_down(OldSize, _gen_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	364 }
8013 95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	365
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	366 if (FLAG_IS_CMDLINE(OldSize) && FLAG_IS_DEFAULT(MaxHeapSize)) {
8013 95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	367 // NewRatio will be used later to set the young generation size so we use
95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	368 // it to calculate how big the heap should be based on the requested OldSize
95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	369 // and NewRatio.
95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	370 assert(NewRatio > 0, "NewRatio should have been set up earlier");
95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	371 size_t calculated_heapsize = (OldSize / NewRatio) * (NewRatio + 1);
95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	372
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	373 calculated_heapsize = align_size_up(calculated_heapsize, _heap_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	374 FLAG_SET_ERGO(uintx, MaxHeapSize, calculated_heapsize);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	375 _max_heap_byte_size = MaxHeapSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	376 FLAG_SET_ERGO(uintx, InitialHeapSize, calculated_heapsize);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	377 _initial_heap_byte_size = InitialHeapSize;
8013 95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	378 }
0 a61af66fc99e Initial load duke parents: diff changeset	379
10241 d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	380 // adjust max heap size if necessary
d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	381 if (NewSize + OldSize > MaxHeapSize) {
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	382 if (_max_heap_size_cmdline) {
10241 d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	383 // somebody set a maximum heap size with the intention that we should not
d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	384 // exceed it. Adjust New/OldSize as necessary.
d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	385 uintx calculated_size = NewSize + OldSize;
d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	386 double shrink_factor = (double) MaxHeapSize / calculated_size;
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	387 uintx smaller_new_size = align_size_down((uintx)(NewSize * shrink_factor), _gen_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	388 FLAG_SET_ERGO(uintx, NewSize, MAX2(young_gen_size_lower_bound(), smaller_new_size));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	389 _initial_gen0_size = NewSize;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	390
10241 d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	391 // OldSize is already aligned because above we aligned MaxHeapSize to
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	392 // _heap_alignment, and we just made sure that NewSize is aligned to
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	393 // _gen_alignment. In initialize_flags() we verified that _heap_alignment
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	394 // is a multiple of _gen_alignment.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	395 FLAG_SET_ERGO(uintx, OldSize, MaxHeapSize - NewSize);
10241 d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	396 } else {
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	397 FLAG_SET_ERGO(uintx, MaxHeapSize, align_size_up(NewSize + OldSize, _heap_alignment));
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	398 _max_heap_byte_size = MaxHeapSize;
10241 d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	399 }
d17700c82d7d 8006088: Incompatible heap size flags accepted by VM tschatzl parents: 10239 diff changeset	400 }
10284 7a95933197d0 8014058: Regression tests for 8006088 tschatzl parents: 10241 diff changeset	401
0 a61af66fc99e Initial load duke parents: diff changeset	402 always_do_update_barrier = UseConcMarkSweepGC;
a61af66fc99e Initial load duke parents: diff changeset	403
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	404 DEBUG_ONLY(TwoGenerationCollectorPolicy::assert_flags();)
0 a61af66fc99e Initial load duke parents: diff changeset	405 }
a61af66fc99e Initial load duke parents: diff changeset	406
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	407 // Values set on the command line win over any ergonomically
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	408 // set command line parameters.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	409 // Ergonomic choice of parameters are done before this
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	410 // method is called. Values for command line parameters such as NewSize
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	411 // and MaxNewSize feed those ergonomic choices into this method.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	412 // This method makes the final generation sizings consistent with
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	413 // themselves and with overall heap sizings.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	414 // In the absence of explicitly set command line flags, policies
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	415 // such as the use of NewRatio are used to size the generation.
0 a61af66fc99e Initial load duke parents: diff changeset	416 void GenCollectorPolicy::initialize_size_info() {
a61af66fc99e Initial load duke parents: diff changeset	417 CollectorPolicy::initialize_size_info();
a61af66fc99e Initial load duke parents: diff changeset	418
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	419 // _space_alignment is used for alignment within a generation.
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	420 // There is additional alignment done down stream for some
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	421 // collectors that sometimes causes unwanted rounding up of
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	422 // generations sizes.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	423
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	424 // Determine maximum size of gen0
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	425
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	426 size_t max_new_size = 0;
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	427 if (!FLAG_IS_DEFAULT(MaxNewSize)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	428 max_new_size = MaxNewSize;
0 a61af66fc99e Initial load duke parents: diff changeset	429 } else {
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	430 max_new_size = scale_by_NewRatio_aligned(_max_heap_byte_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	431 // Bound the maximum size by NewSize below (since it historically
0 a61af66fc99e Initial load duke parents: diff changeset	432 // would have been NewSize and because the NewRatio calculation could
a61af66fc99e Initial load duke parents: diff changeset	433 // yield a size that is too small) and bound it by MaxNewSize above.
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	434 // Ergonomics plays here by previously calculating the desired
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	435 // NewSize and MaxNewSize.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	436 max_new_size = MIN2(MAX2(max_new_size, NewSize), MaxNewSize);
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	437 }
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	438 assert(max_new_size > 0, "All paths should set max_new_size");
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	439
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	440 // Given the maximum gen0 size, determine the initial and
2368 dde920245681 6896099: Integrate CMS heap ergo with default heap sizing ergo ysr parents: 1994 diff changeset	441 // minimum gen0 sizes.
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	442
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	443 if (_max_heap_byte_size == _min_heap_byte_size) {
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	444 // The maximum and minimum heap sizes are the same so
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	445 // the generations minimum and initial must be the
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	446 // same as its maximum.
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	447 _min_gen0_size = max_new_size;
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	448 _initial_gen0_size = max_new_size;
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	449 _max_gen0_size = max_new_size;
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	450 } else {
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	451 size_t desired_new_size = 0;
17898 1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	452 if (FLAG_IS_CMDLINE(NewSize)) {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	453 // If NewSize is set on the command line, we must use it as
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	454 // the initial size and it also makes sense to use it as the
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	455 // lower limit.
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	456 _min_gen0_size = NewSize;
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	457 desired_new_size = NewSize;
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	458 max_new_size = MAX2(max_new_size, NewSize);
17898 1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	459 } else if (FLAG_IS_ERGO(NewSize)) {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	460 // If NewSize is set ergonomically, we should use it as a lower
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	461 // limit, but use NewRatio to calculate the initial size.
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	462 _min_gen0_size = NewSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	463 desired_new_size =
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	464 MAX2(scale_by_NewRatio_aligned(_initial_heap_byte_size), NewSize);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	465 max_new_size = MAX2(max_new_size, NewSize);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	466 } else {
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	467 // For the case where NewSize is the default, use NewRatio
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	468 // to size the minimum and initial generation sizes.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	469 // Use the default NewSize as the floor for these values. If
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	470 // NewRatio is overly large, the resulting sizes can be too
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	471 // small.
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	472 _min_gen0_size = MAX2(scale_by_NewRatio_aligned(_min_heap_byte_size), NewSize);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	473 desired_new_size =
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	474 MAX2(scale_by_NewRatio_aligned(_initial_heap_byte_size), NewSize);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	475 }
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	476
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	477 assert(_min_gen0_size > 0, "Sanity check");
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	478 _initial_gen0_size = desired_new_size;
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	479 _max_gen0_size = max_new_size;
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	480
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	481 // At this point the desirable initial and minimum sizes have been
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	482 // determined without regard to the maximum sizes.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	483
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	484 // Bound the sizes by the corresponding overall heap sizes.
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	485 _min_gen0_size = bound_minus_alignment(_min_gen0_size, _min_heap_byte_size);
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	486 _initial_gen0_size = bound_minus_alignment(_initial_gen0_size, _initial_heap_byte_size);
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	487 _max_gen0_size = bound_minus_alignment(_max_gen0_size, _max_heap_byte_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	488
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	489 // At this point all three sizes have been checked against the
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	490 // maximum sizes but have not been checked for consistency
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 13 diff changeset	491 // among the three.
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	492
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	493 // Final check min <= initial <= max
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	494 _min_gen0_size = MIN2(_min_gen0_size, _max_gen0_size);
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	495 _initial_gen0_size = MAX2(MIN2(_initial_gen0_size, _max_gen0_size), _min_gen0_size);
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	496 _min_gen0_size = MIN2(_min_gen0_size, _initial_gen0_size);
0 a61af66fc99e Initial load duke parents: diff changeset	497 }
a61af66fc99e Initial load duke parents: diff changeset	498
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	499 // Write back to flags if necessary
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	500 if (NewSize != _initial_gen0_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	501 FLAG_SET_ERGO(uintx, NewSize, _initial_gen0_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	502 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	503
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	504 if (MaxNewSize != _max_gen0_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	505 FLAG_SET_ERGO(uintx, MaxNewSize, _max_gen0_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	506 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	507
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	508 if (PrintGCDetails && Verbose) {
2368 dde920245681 6896099: Integrate CMS heap ergo with default heap sizing ergo ysr parents: 1994 diff changeset	509 gclog_or_tty->print_cr("1: Minimum gen0 " SIZE_FORMAT " Initial gen0 "
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	510 SIZE_FORMAT " Maximum gen0 " SIZE_FORMAT,
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	511 _min_gen0_size, _initial_gen0_size, _max_gen0_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	512 }
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	513
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	514 DEBUG_ONLY(GenCollectorPolicy::assert_size_info();)
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	515 }
0 a61af66fc99e Initial load duke parents: diff changeset	516
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	517 // Call this method during the sizing of the gen1 to make
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	518 // adjustments to gen0 because of gen1 sizing policy. gen0 initially has
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	519 // the most freedom in sizing because it is done before the
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	520 // policy for gen1 is applied. Once gen1 policies have been applied,
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	521 // there may be conflicts in the shape of the heap and this method
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	522 // is used to make the needed adjustments. The application of the
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	523 // policies could be more sophisticated (iterative for example) but
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	524 // keeping it simple also seems a worthwhile goal.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	525 bool TwoGenerationCollectorPolicy::adjust_gen0_sizes(size_t* gen0_size_ptr,
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	526 size_t* gen1_size_ptr,
13066 236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	527 const size_t heap_size) {
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	528 bool result = false;
8013 95ccff9eee8e 6348447: Specifying -XX:OldSize crashes 64-bit VMs jwilhelm parents: 7451 diff changeset	529
13066 236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	530 if ((gen0_size_ptr + gen1_size_ptr) > heap_size) {
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	531 uintx smallest_new_size = young_gen_size_lower_bound();
13066 236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	532 if ((heap_size < (*gen0_size_ptr + _min_gen1_size)) &&
236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	533 (heap_size >= _min_gen1_size + smallest_new_size)) {
236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	534 // Adjust gen0 down to accommodate _min_gen1_size
236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	535 *gen0_size_ptr = align_size_down_bounded(heap_size - _min_gen1_size, _gen_alignment);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	536 result = true;
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	537 } else {
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	538 gen1_size_ptr = align_size_down_bounded(heap_size - gen0_size_ptr, _gen_alignment);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	539 }
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	540 }
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	541 return result;
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	542 }
0 a61af66fc99e Initial load duke parents: diff changeset	543
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	544 // Minimum sizes of the generations may be different than
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	545 // the initial sizes. An inconsistently is permitted here
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	546 // in the total size that can be specified explicitly by
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	547 // command line specification of OldSize and NewSize and
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	548 // also a command line specification of -Xms. Issue a warning
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	549 // but allow the values to pass.
0 a61af66fc99e Initial load duke parents: diff changeset	550
a61af66fc99e Initial load duke parents: diff changeset	551 void TwoGenerationCollectorPolicy::initialize_size_info() {
a61af66fc99e Initial load duke parents: diff changeset	552 GenCollectorPolicy::initialize_size_info();
a61af66fc99e Initial load duke parents: diff changeset	553
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	554 // At this point the minimum, initial and maximum sizes
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	555 // of the overall heap and of gen0 have been determined.
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	556 // The maximum gen1 size can be determined from the maximum gen0
2368 dde920245681 6896099: Integrate CMS heap ergo with default heap sizing ergo ysr parents: 1994 diff changeset	557 // and maximum heap size since no explicit flags exits
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	558 // for setting the gen1 maximum.
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	559 _max_gen1_size = MAX2(_max_heap_byte_size - _max_gen0_size, _gen_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	560
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	561 // If no explicit command line flag has been set for the
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	562 // gen1 size, use what is left for gen1.
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	563 if (!FLAG_IS_CMDLINE(OldSize)) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	564 // The user has not specified any value but the ergonomics
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	565 // may have chosen a value (which may or may not be consistent
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	566 // with the overall heap size). In either case make
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	567 // the minimum, maximum and initial sizes consistent
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	568 // with the gen0 sizes and the overall heap sizes.
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	569 _min_gen1_size = MAX2(_min_heap_byte_size - _min_gen0_size, _gen_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	570 _initial_gen1_size = MAX2(_initial_heap_byte_size - _initial_gen0_size, _gen_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	571 // _max_gen1_size has already been made consistent above
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	572 FLAG_SET_ERGO(uintx, OldSize, _initial_gen1_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	573 } else {
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	574 // It's been explicitly set on the command line. Use the
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	575 // OldSize and then determine the consequences.
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	576 _min_gen1_size = MIN2(OldSize, _min_heap_byte_size - _min_gen0_size);
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	577 _initial_gen1_size = OldSize;
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	578
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	579 // If the user has explicitly set an OldSize that is inconsistent
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	580 // with other command line flags, issue a warning.
0 a61af66fc99e Initial load duke parents: diff changeset	581 // The generation minimums and the overall heap mimimum should
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	582 // be within one generation alignment.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	583 if ((_min_gen1_size + _min_gen0_size + _gen_alignment) < _min_heap_byte_size) {
0 a61af66fc99e Initial load duke parents: diff changeset	584 warning("Inconsistency between minimum heap size and minimum "
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	585 "generation sizes: using minimum heap = " SIZE_FORMAT,
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	586 _min_heap_byte_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	587 }
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	588 if (OldSize > _max_gen1_size) {
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	589 warning("Inconsistency between maximum heap size and maximum "
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	590 "generation sizes: using maximum heap = " SIZE_FORMAT
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	591 " -XX:OldSize flag is being ignored",
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	592 _max_heap_byte_size);
2368 dde920245681 6896099: Integrate CMS heap ergo with default heap sizing ergo ysr parents: 1994 diff changeset	593 }
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	594 // If there is an inconsistency between the OldSize and the minimum and/or
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	595 // initial size of gen0, since OldSize was explicitly set, OldSize wins.
13066 236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	596 if (adjust_gen0_sizes(&_min_gen0_size, &_min_gen1_size, _min_heap_byte_size)) {
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	597 if (PrintGCDetails && Verbose) {
2368 dde920245681 6896099: Integrate CMS heap ergo with default heap sizing ergo ysr parents: 1994 diff changeset	598 gclog_or_tty->print_cr("2: Minimum gen0 " SIZE_FORMAT " Initial gen0 "
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	599 SIZE_FORMAT " Maximum gen0 " SIZE_FORMAT,
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	600 _min_gen0_size, _initial_gen0_size, _max_gen0_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	601 }
0 a61af66fc99e Initial load duke parents: diff changeset	602 }
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	603 // Initial size
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	604 if (adjust_gen0_sizes(&_initial_gen0_size, &_initial_gen1_size,
13066 236cecd9ec97 8028093: Initial young size is smaller than minimum young size jwilhelm parents: 13065 diff changeset	605 _initial_heap_byte_size)) {
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	606 if (PrintGCDetails && Verbose) {
2368 dde920245681 6896099: Integrate CMS heap ergo with default heap sizing ergo ysr parents: 1994 diff changeset	607 gclog_or_tty->print_cr("3: Minimum gen0 " SIZE_FORMAT " Initial gen0 "
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	608 SIZE_FORMAT " Maximum gen0 " SIZE_FORMAT,
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	609 _min_gen0_size, _initial_gen0_size, _max_gen0_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	610 }
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	611 }
0 a61af66fc99e Initial load duke parents: diff changeset	612 }
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	613 // Enforce the maximum gen1 size.
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	614 _min_gen1_size = MIN2(_min_gen1_size, _max_gen1_size);
0 a61af66fc99e Initial load duke parents: diff changeset	615
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	616 // Check that min gen1 <= initial gen1 <= max gen1
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	617 _initial_gen1_size = MAX2(_initial_gen1_size, _min_gen1_size);
9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	618 _initial_gen1_size = MIN2(_initial_gen1_size, _max_gen1_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	619
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	620 // Write back to flags if necessary
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	621 if (NewSize != _initial_gen0_size) {
13065 3ad2b68d107e 8027911: Assertion in the collector policy when running gc/arguments/TestMaxNewSize.java jwilhelm parents: 13060 diff changeset	622 FLAG_SET_ERGO(uintx, NewSize, _initial_gen0_size);
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	623 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	624
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	625 if (MaxNewSize != _max_gen0_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	626 FLAG_SET_ERGO(uintx, MaxNewSize, _max_gen0_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	627 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	628
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	629 if (OldSize != _initial_gen1_size) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	630 FLAG_SET_ERGO(uintx, OldSize, _initial_gen1_size);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	631 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	632
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	633 if (PrintGCDetails && Verbose) {
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	634 gclog_or_tty->print_cr("Minimum gen1 " SIZE_FORMAT " Initial gen1 "
183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	635 SIZE_FORMAT " Maximum gen1 " SIZE_FORMAT,
12830 9b4d0569f2f4 8025852: Remove unnecessary setters in collector policy classes jwilhelm parents: 12350 diff changeset	636 _min_gen1_size, _initial_gen1_size, _max_gen1_size);
13 183f41cf8bfe 6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO jmasa parents: 0 diff changeset	637 }
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	638
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	639 DEBUG_ONLY(TwoGenerationCollectorPolicy::assert_size_info();)
0 a61af66fc99e Initial load duke parents: diff changeset	640 }
a61af66fc99e Initial load duke parents: diff changeset	641
a61af66fc99e Initial load duke parents: diff changeset	642 HeapWord* GenCollectorPolicy::mem_allocate_work(size_t size,
a61af66fc99e Initial load duke parents: diff changeset	643 bool is_tlab,
a61af66fc99e Initial load duke parents: diff changeset	644 bool* gc_overhead_limit_was_exceeded) {
a61af66fc99e Initial load duke parents: diff changeset	645 GenCollectedHeap *gch = GenCollectedHeap::heap();
a61af66fc99e Initial load duke parents: diff changeset	646
a61af66fc99e Initial load duke parents: diff changeset	647 debug_only(gch->check_for_valid_allocation_state());
a61af66fc99e Initial load duke parents: diff changeset	648 assert(gch->no_gc_in_progress(), "Allocation during gc not allowed");
1387 0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	649
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	650 // In general gc_overhead_limit_was_exceeded should be false so
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	651 // set it so here and reset it to true only if the gc time
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	652 // limit is being exceeded as checked below.
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	653 *gc_overhead_limit_was_exceeded = false;
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	654
0 a61af66fc99e Initial load duke parents: diff changeset	655 HeapWord* result = NULL;
a61af66fc99e Initial load duke parents: diff changeset	656
a61af66fc99e Initial load duke parents: diff changeset	657 // Loop until the allocation is satisified,
a61af66fc99e Initial load duke parents: diff changeset	658 // or unsatisfied after GC.
8853 2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 8743 diff changeset	659 for (int try_count = 1, gclocker_stalled_count = 0; /* return or throw */; try_count += 1) {
0 a61af66fc99e Initial load duke parents: diff changeset	660 HandleMark hm; // discard any handles allocated in each iteration
a61af66fc99e Initial load duke parents: diff changeset	661
a61af66fc99e Initial load duke parents: diff changeset	662 // First allocation attempt is lock-free.
a61af66fc99e Initial load duke parents: diff changeset	663 Generation *gen0 = gch->get_gen(0);
a61af66fc99e Initial load duke parents: diff changeset	664 assert(gen0->supports_inline_contig_alloc(),
a61af66fc99e Initial load duke parents: diff changeset	665 "Otherwise, must do alloc within heap lock");
a61af66fc99e Initial load duke parents: diff changeset	666 if (gen0->should_allocate(size, is_tlab)) {
a61af66fc99e Initial load duke parents: diff changeset	667 result = gen0->par_allocate(size, is_tlab);
a61af66fc99e Initial load duke parents: diff changeset	668 if (result != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	669 assert(gch->is_in_reserved(result), "result not in heap");
a61af66fc99e Initial load duke parents: diff changeset	670 return result;
a61af66fc99e Initial load duke parents: diff changeset	671 }
a61af66fc99e Initial load duke parents: diff changeset	672 }
a61af66fc99e Initial load duke parents: diff changeset	673 unsigned int gc_count_before; // read inside the Heap_lock locked region
a61af66fc99e Initial load duke parents: diff changeset	674 {
a61af66fc99e Initial load duke parents: diff changeset	675 MutexLocker ml(Heap_lock);
a61af66fc99e Initial load duke parents: diff changeset	676 if (PrintGC && Verbose) {
a61af66fc99e Initial load duke parents: diff changeset	677 gclog_or_tty->print_cr("TwoGenerationCollectorPolicy::mem_allocate_work:"
a61af66fc99e Initial load duke parents: diff changeset	678 " attempting locked slow path allocation");
a61af66fc99e Initial load duke parents: diff changeset	679 }
a61af66fc99e Initial load duke parents: diff changeset	680 // Note that only large objects get a shot at being
a61af66fc99e Initial load duke parents: diff changeset	681 // allocated in later generations.
a61af66fc99e Initial load duke parents: diff changeset	682 bool first_only = ! should_try_older_generation_allocation(size);
a61af66fc99e Initial load duke parents: diff changeset	683
a61af66fc99e Initial load duke parents: diff changeset	684 result = gch->attempt_allocation(size, is_tlab, first_only);
a61af66fc99e Initial load duke parents: diff changeset	685 if (result != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	686 assert(gch->is_in_reserved(result), "result not in heap");
a61af66fc99e Initial load duke parents: diff changeset	687 return result;
a61af66fc99e Initial load duke parents: diff changeset	688 }
a61af66fc99e Initial load duke parents: diff changeset	689
a61af66fc99e Initial load duke parents: diff changeset	690 if (GC_locker::is_active_and_needs_gc()) {
a61af66fc99e Initial load duke parents: diff changeset	691 if (is_tlab) {
a61af66fc99e Initial load duke parents: diff changeset	692 return NULL; // Caller will retry allocating individual object
a61af66fc99e Initial load duke parents: diff changeset	693 }
a61af66fc99e Initial load duke parents: diff changeset	694 if (!gch->is_maximal_no_gc()) {
a61af66fc99e Initial load duke parents: diff changeset	695 // Try and expand heap to satisfy request
a61af66fc99e Initial load duke parents: diff changeset	696 result = expand_heap_and_allocate(size, is_tlab);
a61af66fc99e Initial load duke parents: diff changeset	697 // result could be null if we are out of space
a61af66fc99e Initial load duke parents: diff changeset	698 if (result != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	699 return result;
a61af66fc99e Initial load duke parents: diff changeset	700 }
a61af66fc99e Initial load duke parents: diff changeset	701 }
a61af66fc99e Initial load duke parents: diff changeset	702
8853 2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 8743 diff changeset	703 if (gclocker_stalled_count > GCLockerRetryAllocationCount) {
2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 8743 diff changeset	704 return NULL; // we didn't get to do a GC and we didn't get any memory
2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 8743 diff changeset	705 }
2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 8743 diff changeset	706
0 a61af66fc99e Initial load duke parents: diff changeset	707 // If this thread is not in a jni critical section, we stall
a61af66fc99e Initial load duke parents: diff changeset	708 // the requestor until the critical section has cleared and
a61af66fc99e Initial load duke parents: diff changeset	709 // GC allowed. When the critical section clears, a GC is
a61af66fc99e Initial load duke parents: diff changeset	710 // initiated by the last thread exiting the critical section; so
a61af66fc99e Initial load duke parents: diff changeset	711 // we retry the allocation sequence from the beginning of the loop,
a61af66fc99e Initial load duke parents: diff changeset	712 // rather than causing more, now probably unnecessary, GC attempts.
a61af66fc99e Initial load duke parents: diff changeset	713 JavaThread* jthr = JavaThread::current();
a61af66fc99e Initial load duke parents: diff changeset	714 if (!jthr->in_critical()) {
a61af66fc99e Initial load duke parents: diff changeset	715 MutexUnlocker mul(Heap_lock);
a61af66fc99e Initial load duke parents: diff changeset	716 // Wait for JNI critical section to be exited
a61af66fc99e Initial load duke parents: diff changeset	717 GC_locker::stall_until_clear();
8853 2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 8743 diff changeset	718 gclocker_stalled_count += 1;
0 a61af66fc99e Initial load duke parents: diff changeset	719 continue;
a61af66fc99e Initial load duke parents: diff changeset	720 } else {
a61af66fc99e Initial load duke parents: diff changeset	721 if (CheckJNICalls) {
a61af66fc99e Initial load duke parents: diff changeset	722 fatal("Possible deadlock due to allocating while"
a61af66fc99e Initial load duke parents: diff changeset	723 " in jni critical section");
a61af66fc99e Initial load duke parents: diff changeset	724 }
a61af66fc99e Initial load duke parents: diff changeset	725 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	726 }
a61af66fc99e Initial load duke parents: diff changeset	727 }
a61af66fc99e Initial load duke parents: diff changeset	728
a61af66fc99e Initial load duke parents: diff changeset	729 // Read the gc count while the heap lock is held.
a61af66fc99e Initial load duke parents: diff changeset	730 gc_count_before = Universe::heap()->total_collections();
a61af66fc99e Initial load duke parents: diff changeset	731 }
a61af66fc99e Initial load duke parents: diff changeset	732
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	733 VM_GenCollectForAllocation op(size, is_tlab, gc_count_before);
0 a61af66fc99e Initial load duke parents: diff changeset	734 VMThread::execute(&op);
a61af66fc99e Initial load duke parents: diff changeset	735 if (op.prologue_succeeded()) {
a61af66fc99e Initial load duke parents: diff changeset	736 result = op.result();
a61af66fc99e Initial load duke parents: diff changeset	737 if (op.gc_locked()) {
a61af66fc99e Initial load duke parents: diff changeset	738 assert(result == NULL, "must be NULL if gc_locked() is true");
a61af66fc99e Initial load duke parents: diff changeset	739 continue; // retry and/or stall as necessary
a61af66fc99e Initial load duke parents: diff changeset	740 }
1387 0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	741
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	742 // Allocation has failed and a collection
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	743 // has been done. If the gc time limit was exceeded the
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	744 // this time, return NULL so that an out-of-memory
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	745 // will be thrown. Clear gc_overhead_limit_exceeded
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	746 // so that the overhead exceeded does not persist.
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	747
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	748 const bool limit_exceeded = size_policy()->gc_overhead_limit_exceeded();
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	749 const bool softrefs_clear = all_soft_refs_clear();
8743 82657b6a8cc0 6976528: PS: assert(!limit_exceeded \|\| softrefs_clear) failed: Should have been cleared jmasa parents: 8072 diff changeset	750
1387 0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	751 if (limit_exceeded && softrefs_clear) {
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	752 *gc_overhead_limit_was_exceeded = true;
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	753 size_policy()->set_gc_overhead_limit_exceeded(false);
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	754 if (op.result() != NULL) {
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	755 CollectedHeap::fill_with_object(op.result(), size);
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	756 }
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	757 return NULL;
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	758 }
0 a61af66fc99e Initial load duke parents: diff changeset	759 assert(result == NULL \|\| gch->is_in_reserved(result),
a61af66fc99e Initial load duke parents: diff changeset	760 "result not in heap");
a61af66fc99e Initial load duke parents: diff changeset	761 return result;
a61af66fc99e Initial load duke parents: diff changeset	762 }
a61af66fc99e Initial load duke parents: diff changeset	763
a61af66fc99e Initial load duke parents: diff changeset	764 // Give a warning if we seem to be looping forever.
a61af66fc99e Initial load duke parents: diff changeset	765 if ((QueuedAllocationWarningCount > 0) &&
a61af66fc99e Initial load duke parents: diff changeset	766 (try_count % QueuedAllocationWarningCount == 0)) {
a61af66fc99e Initial load duke parents: diff changeset	767 warning("TwoGenerationCollectorPolicy::mem_allocate_work retries %d times \n\t"
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17899 diff changeset	768 " size=" SIZE_FORMAT " %s", try_count, size, is_tlab ? "(TLAB)" : "");
0 a61af66fc99e Initial load duke parents: diff changeset	769 }
a61af66fc99e Initial load duke parents: diff changeset	770 }
a61af66fc99e Initial load duke parents: diff changeset	771 }
a61af66fc99e Initial load duke parents: diff changeset	772
a61af66fc99e Initial load duke parents: diff changeset	773 HeapWord* GenCollectorPolicy::expand_heap_and_allocate(size_t size,
a61af66fc99e Initial load duke parents: diff changeset	774 bool is_tlab) {
a61af66fc99e Initial load duke parents: diff changeset	775 GenCollectedHeap *gch = GenCollectedHeap::heap();
a61af66fc99e Initial load duke parents: diff changeset	776 HeapWord* result = NULL;
a61af66fc99e Initial load duke parents: diff changeset	777 for (int i = number_of_generations() - 1; i >= 0 && result == NULL; i--) {
a61af66fc99e Initial load duke parents: diff changeset	778 Generation *gen = gch->get_gen(i);
a61af66fc99e Initial load duke parents: diff changeset	779 if (gen->should_allocate(size, is_tlab)) {
a61af66fc99e Initial load duke parents: diff changeset	780 result = gen->expand_and_allocate(size, is_tlab);
a61af66fc99e Initial load duke parents: diff changeset	781 }
a61af66fc99e Initial load duke parents: diff changeset	782 }
a61af66fc99e Initial load duke parents: diff changeset	783 assert(result == NULL \|\| gch->is_in_reserved(result), "result not in heap");
a61af66fc99e Initial load duke parents: diff changeset	784 return result;
a61af66fc99e Initial load duke parents: diff changeset	785 }
a61af66fc99e Initial load duke parents: diff changeset	786
a61af66fc99e Initial load duke parents: diff changeset	787 HeapWord* GenCollectorPolicy::satisfy_failed_allocation(size_t size,
a61af66fc99e Initial load duke parents: diff changeset	788 bool is_tlab) {
a61af66fc99e Initial load duke parents: diff changeset	789 GenCollectedHeap *gch = GenCollectedHeap::heap();
a61af66fc99e Initial load duke parents: diff changeset	790 GCCauseSetter x(gch, GCCause::_allocation_failure);
a61af66fc99e Initial load duke parents: diff changeset	791 HeapWord* result = NULL;
a61af66fc99e Initial load duke parents: diff changeset	792
a61af66fc99e Initial load duke parents: diff changeset	793 assert(size != 0, "Precondition violated");
a61af66fc99e Initial load duke parents: diff changeset	794 if (GC_locker::is_active_and_needs_gc()) {
a61af66fc99e Initial load duke parents: diff changeset	795 // GC locker is active; instead of a collection we will attempt
a61af66fc99e Initial load duke parents: diff changeset	796 // to expand the heap, if there's room for expansion.
a61af66fc99e Initial load duke parents: diff changeset	797 if (!gch->is_maximal_no_gc()) {
a61af66fc99e Initial load duke parents: diff changeset	798 result = expand_heap_and_allocate(size, is_tlab);
a61af66fc99e Initial load duke parents: diff changeset	799 }
a61af66fc99e Initial load duke parents: diff changeset	800 return result; // could be null if we are out of space
1994 6cd6d394f280 7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot \|\| !gch->incremental_collection_failed()) ysr parents: 1972 diff changeset	801 } else if (!gch->incremental_collection_will_fail(false /* don't consult_young */)) {
0 a61af66fc99e Initial load duke parents: diff changeset	802 // Do an incremental collection.
a61af66fc99e Initial load duke parents: diff changeset	803 gch->do_collection(false /* full */,
a61af66fc99e Initial load duke parents: diff changeset	804 false /* clear_all_soft_refs */,
a61af66fc99e Initial load duke parents: diff changeset	805 size /* size */,
a61af66fc99e Initial load duke parents: diff changeset	806 is_tlab /* is_tlab */,
a61af66fc99e Initial load duke parents: diff changeset	807 number_of_generations() - 1 /* max_level */);
a61af66fc99e Initial load duke parents: diff changeset	808 } else {
1994 6cd6d394f280 7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot \|\| !gch->incremental_collection_failed()) ysr parents: 1972 diff changeset	809 if (Verbose && PrintGCDetails) {
6cd6d394f280 7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot \|\| !gch->incremental_collection_failed()) ysr parents: 1972 diff changeset	810 gclog_or_tty->print(" :: Trying full because partial may fail :: ");
6cd6d394f280 7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot \|\| !gch->incremental_collection_failed()) ysr parents: 1972 diff changeset	811 }
0 a61af66fc99e Initial load duke parents: diff changeset	812 // Try a full collection; see delta for bug id 6266275
a61af66fc99e Initial load duke parents: diff changeset	813 // for the original code and why this has been simplified
a61af66fc99e Initial load duke parents: diff changeset	814 // with from-space allocation criteria modified and
a61af66fc99e Initial load duke parents: diff changeset	815 // such allocation moved out of the safepoint path.
a61af66fc99e Initial load duke parents: diff changeset	816 gch->do_collection(true /* full */,
a61af66fc99e Initial load duke parents: diff changeset	817 false /* clear_all_soft_refs */,
a61af66fc99e Initial load duke parents: diff changeset	818 size /* size */,
a61af66fc99e Initial load duke parents: diff changeset	819 is_tlab /* is_tlab */,
a61af66fc99e Initial load duke parents: diff changeset	820 number_of_generations() - 1 /* max_level */);
a61af66fc99e Initial load duke parents: diff changeset	821 }
a61af66fc99e Initial load duke parents: diff changeset	822
a61af66fc99e Initial load duke parents: diff changeset	823 result = gch->attempt_allocation(size, is_tlab, false /first_only/);
a61af66fc99e Initial load duke parents: diff changeset	824
a61af66fc99e Initial load duke parents: diff changeset	825 if (result != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	826 assert(gch->is_in_reserved(result), "result not in heap");
a61af66fc99e Initial load duke parents: diff changeset	827 return result;
a61af66fc99e Initial load duke parents: diff changeset	828 }
a61af66fc99e Initial load duke parents: diff changeset	829
a61af66fc99e Initial load duke parents: diff changeset	830 // OK, collection failed, try expansion.
a61af66fc99e Initial load duke parents: diff changeset	831 result = expand_heap_and_allocate(size, is_tlab);
a61af66fc99e Initial load duke parents: diff changeset	832 if (result != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	833 return result;
a61af66fc99e Initial load duke parents: diff changeset	834 }
a61af66fc99e Initial load duke parents: diff changeset	835
a61af66fc99e Initial load duke parents: diff changeset	836 // If we reach this point, we're really out of memory. Try every trick
a61af66fc99e Initial load duke parents: diff changeset	837 // we can to reclaim memory. Force collection of soft references. Force
a61af66fc99e Initial load duke parents: diff changeset	838 // a complete compaction of the heap. Any additional methods for finding
a61af66fc99e Initial load duke parents: diff changeset	839 // free memory should be here, especially if they are expensive. If this
a61af66fc99e Initial load duke parents: diff changeset	840 // attempt fails, an OOM exception will be thrown.
a61af66fc99e Initial load duke parents: diff changeset	841 {
10287 12f651e29f6b 6843347: Boundary values in some public GC options cause crashes tschatzl parents: 10284 diff changeset	842 UIntFlagSetting flag_change(MarkSweepAlwaysCompactCount, 1); // Make sure the heap is fully compacted
0 a61af66fc99e Initial load duke parents: diff changeset	843
a61af66fc99e Initial load duke parents: diff changeset	844 gch->do_collection(true /* full */,
a61af66fc99e Initial load duke parents: diff changeset	845 true /* clear_all_soft_refs */,
a61af66fc99e Initial load duke parents: diff changeset	846 size /* size */,
a61af66fc99e Initial load duke parents: diff changeset	847 is_tlab /* is_tlab */,
a61af66fc99e Initial load duke parents: diff changeset	848 number_of_generations() - 1 /* max_level */);
a61af66fc99e Initial load duke parents: diff changeset	849 }
a61af66fc99e Initial load duke parents: diff changeset	850
a61af66fc99e Initial load duke parents: diff changeset	851 result = gch->attempt_allocation(size, is_tlab, false /* first_only */);
a61af66fc99e Initial load duke parents: diff changeset	852 if (result != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	853 assert(gch->is_in_reserved(result), "result not in heap");
a61af66fc99e Initial load duke parents: diff changeset	854 return result;
a61af66fc99e Initial load duke parents: diff changeset	855 }
a61af66fc99e Initial load duke parents: diff changeset	856
1387 0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	857 assert(!should_clear_all_soft_refs(),
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	858 "Flag should have been handled and cleared prior to this point");
0bfd3fb24150 6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit. jmasa parents: 1064 diff changeset	859
0 a61af66fc99e Initial load duke parents: diff changeset	860 // What else? We might try synchronous finalization later. If the total
a61af66fc99e Initial load duke parents: diff changeset	861 // space available is large enough for the allocation, then a more
a61af66fc99e Initial load duke parents: diff changeset	862 // complete compaction phase than we've tried so far might be
a61af66fc99e Initial load duke parents: diff changeset	863 // appropriate.
a61af66fc99e Initial load duke parents: diff changeset	864 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	865 }
a61af66fc99e Initial load duke parents: diff changeset	866
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	867 MetaWord* CollectorPolicy::satisfy_failed_metadata_allocation(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	868 ClassLoaderData* loader_data,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	869 size_t word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	870 Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	871 uint loop_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	872 uint gc_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	873 uint full_gc_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	874
6923 3fadc0e8cffe 8000988: VM deadlock when running btree006 on windows-i586 jmasa parents: 6753 diff changeset	875 assert(!Heap_lock->owned_by_self(), "Should not be holding the Heap_lock");
3fadc0e8cffe 8000988: VM deadlock when running btree006 on windows-i586 jmasa parents: 6753 diff changeset	876
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	877 do {
6753 8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	878 MetaWord* result = NULL;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	879 if (GC_locker::is_active_and_needs_gc()) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	880 // If the GC_locker is active, just expand and allocate.
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	881 // If that does not succeed, wait if this thread is not
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	882 // in a critical section itself.
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	883 result =
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	884 loader_data->metaspace_non_null()->expand_and_allocate(word_size,
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	885 mdtype);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	886 if (result != NULL) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	887 return result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	888 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	889 JavaThread* jthr = JavaThread::current();
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	890 if (!jthr->in_critical()) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	891 // Wait for JNI critical section to be exited
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	892 GC_locker::stall_until_clear();
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	893 // The GC invoked by the last thread leaving the critical
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	894 // section will be a young collection and a full collection
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	895 // is (currently) needed for unloading classes so continue
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	896 // to the next iteration to get a full GC.
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	897 continue;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	898 } else {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	899 if (CheckJNICalls) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	900 fatal("Possible deadlock due to allocating while"
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	901 " in jni critical section");
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	902 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	903 return NULL;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	904 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	905 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently jmasa parents: 6725 diff changeset	906
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	907 { // Need lock to get self consistent gc_count's
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	908 MutexLocker ml(Heap_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	909 gc_count = Universe::heap()->total_collections();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	910 full_gc_count = Universe::heap()->total_full_collections();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	911 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	912
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	913 // Generate a VM operation
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	914 VM_CollectForMetadataAllocation op(loader_data,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	915 word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	916 mdtype,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	917 gc_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	918 full_gc_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	919 GCCause::_metadata_GC_threshold);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	920 VMThread::execute(&op);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	921
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	922 // If GC was locked out, try again. Check
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	923 // before checking success because the prologue
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	924 // could have succeeded and the GC still have
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	925 // been locked out.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	926 if (op.gc_locked()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	927 continue;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	928 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7180 diff changeset	929
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	930 if (op.prologue_succeeded()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	931 return op.result();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	932 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	933 loop_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	934 if ((QueuedAllocationWarningCount > 0) &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	935 (loop_count % QueuedAllocationWarningCount == 0)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	936 warning("satisfy_failed_metadata_allocation() retries %d times \n\t"
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17899 diff changeset	937 " size=" SIZE_FORMAT, loop_count, word_size);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	938 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	939 } while (true); // Until a GC is done
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	940 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 3960 diff changeset	941
0 a61af66fc99e Initial load duke parents: diff changeset	942 // Return true if any of the following is true:
a61af66fc99e Initial load duke parents: diff changeset	943 // . the allocation won't fit into the current young gen heap
a61af66fc99e Initial load duke parents: diff changeset	944 // . gc locker is occupied (jni critical section)
a61af66fc99e Initial load duke parents: diff changeset	945 // . heap memory is tight -- the most recent previous collection
a61af66fc99e Initial load duke parents: diff changeset	946 // was a full collection because a partial collection (would
a61af66fc99e Initial load duke parents: diff changeset	947 // have) failed and is likely to fail again
a61af66fc99e Initial load duke parents: diff changeset	948 bool GenCollectorPolicy::should_try_older_generation_allocation(
a61af66fc99e Initial load duke parents: diff changeset	949 size_t word_size) const {
a61af66fc99e Initial load duke parents: diff changeset	950 GenCollectedHeap* gch = GenCollectedHeap::heap();
a61af66fc99e Initial load duke parents: diff changeset	951 size_t gen0_capacity = gch->get_gen(0)->capacity_before_gc();
a61af66fc99e Initial load duke parents: diff changeset	952 return (word_size > heap_word_size(gen0_capacity))
1888 a7214d79fcf1 6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data ysr parents: 1795 diff changeset	953 \|\| GC_locker::is_active_and_needs_gc()
a7214d79fcf1 6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data ysr parents: 1795 diff changeset	954 \|\| gch->incremental_collection_failed();
0 a61af66fc99e Initial load duke parents: diff changeset	955 }
a61af66fc99e Initial load duke parents: diff changeset	956
a61af66fc99e Initial load duke parents: diff changeset	957
a61af66fc99e Initial load duke parents: diff changeset	958 //
a61af66fc99e Initial load duke parents: diff changeset	959 // MarkSweepPolicy methods
a61af66fc99e Initial load duke parents: diff changeset	960 //
a61af66fc99e Initial load duke parents: diff changeset	961
13060 8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	962 void MarkSweepPolicy::initialize_alignments() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	963 _space_alignment = _gen_alignment = (uintx)Generation::GenGrain;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking jwilhelm parents: 13059 diff changeset	964 _heap_alignment = compute_heap_alignment();
0 a61af66fc99e Initial load duke parents: diff changeset	965 }
a61af66fc99e Initial load duke parents: diff changeset	966
a61af66fc99e Initial load duke parents: diff changeset	967 void MarkSweepPolicy::initialize_generations() {
20360 833b0f92429a 8046598: Scalable Native memory tracking development zgu parents: 17937 diff changeset	968 _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC, CURRENT_PC,
833b0f92429a 8046598: Scalable Native memory tracking development zgu parents: 17937 diff changeset	969 AllocFailStrategy::RETURN_NULL);
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	970 if (_generations == NULL) {
0 a61af66fc99e Initial load duke parents: diff changeset	971 vm_exit_during_initialization("Unable to allocate gen spec");
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	972 }
0 a61af66fc99e Initial load duke parents: diff changeset	973
7451 ca0a78017dc7 8005396: Use ParNew with only one thread instead of DefNew as default for CMS on single CPU machines brutisso parents: 7446 diff changeset	974 if (UseParNewGC) {
0 a61af66fc99e Initial load duke parents: diff changeset	975 _generations[0] = new GenerationSpec(Generation::ParNew, _initial_gen0_size, _max_gen0_size);
a61af66fc99e Initial load duke parents: diff changeset	976 } else {
a61af66fc99e Initial load duke parents: diff changeset	977 _generations[0] = new GenerationSpec(Generation::DefNew, _initial_gen0_size, _max_gen0_size);
a61af66fc99e Initial load duke parents: diff changeset	978 }
a61af66fc99e Initial load duke parents: diff changeset	979 _generations[1] = new GenerationSpec(Generation::MarkSweepCompact, _initial_gen1_size, _max_gen1_size);
a61af66fc99e Initial load duke parents: diff changeset	980
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	981 if (_generations[0] == NULL \|\| _generations[1] == NULL) {
0 a61af66fc99e Initial load duke parents: diff changeset	982 vm_exit_during_initialization("Unable to allocate gen spec");
13059 46d7652b223c 8026853: Prepare GC code for collector policy regression fix jwilhelm parents: 13058 diff changeset	983 }
0 a61af66fc99e Initial load duke parents: diff changeset	984 }
a61af66fc99e Initial load duke parents: diff changeset	985
a61af66fc99e Initial load duke parents: diff changeset	986 void MarkSweepPolicy::initialize_gc_policy_counters() {
a61af66fc99e Initial load duke parents: diff changeset	987 // initialize the policy counters - 2 collectors, 3 generations
7451 ca0a78017dc7 8005396: Use ParNew with only one thread instead of DefNew as default for CMS on single CPU machines brutisso parents: 7446 diff changeset	988 if (UseParNewGC) {
0 a61af66fc99e Initial load duke parents: diff changeset	989 _gc_policy_counters = new GCPolicyCounters("ParNew:MSC", 2, 3);
7451 ca0a78017dc7 8005396: Use ParNew with only one thread instead of DefNew as default for CMS on single CPU machines brutisso parents: 7446 diff changeset	990 } else {
0 a61af66fc99e Initial load duke parents: diff changeset	991 _gc_policy_counters = new GCPolicyCounters("Copy:MSC", 2, 3);
a61af66fc99e Initial load duke parents: diff changeset	992 }
a61af66fc99e Initial load duke parents: diff changeset	993 }
17898 1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	994
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	995 /////////////// Unit tests ///////////////
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	996
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	997 #ifndef PRODUCT
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	998 // Testing that the NewSize flag is handled correct is hard because it
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	999 // depends on so many other configurable variables. This test only tries to
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1000 // verify that there are some basic rules for NewSize honored by the policies.
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1001 class TestGenCollectorPolicy {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1002 public:
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1003 static void test() {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1004 size_t flag_value;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1005
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1006 save_flags();
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1007
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1008 // Set some limits that makes the math simple.
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1009 FLAG_SET_ERGO(uintx, MaxHeapSize, 180 * M);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1010 FLAG_SET_ERGO(uintx, InitialHeapSize, 120 * M);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1011 Arguments::set_min_heap_size(40 * M);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1012
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1013 // If NewSize is set on the command line, it should be used
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1014 // for both min and initial young size if less than min heap.
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1015 flag_value = 20 * M;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1016 FLAG_SET_CMDLINE(uintx, NewSize, flag_value);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1017 verify_min(flag_value);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1018 verify_initial(flag_value);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1019
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1020 // If NewSize is set on command line, but is larger than the min
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1021 // heap size, it should only be used for initial young size.
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1022 flag_value = 80 * M;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1023 FLAG_SET_CMDLINE(uintx, NewSize, flag_value);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1024 verify_initial(flag_value);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1025
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1026 // If NewSize has been ergonomically set, the collector policy
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1027 // should use it for min but calculate the initial young size
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1028 // using NewRatio.
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1029 flag_value = 20 * M;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1030 FLAG_SET_ERGO(uintx, NewSize, flag_value);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1031 verify_min(flag_value);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1032 verify_scaled_initial(InitialHeapSize);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1033
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1034 restore_flags();
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1035
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1036 }
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1037
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1038 static void verify_min(size_t expected) {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1039 MarkSweepPolicy msp;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1040 msp.initialize_all();
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1041
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1042 assert(msp.min_gen0_size() <= expected, err_msg("%zu > %zu", msp.min_gen0_size(), expected));
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1043 }
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1044
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1045 static void verify_initial(size_t expected) {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1046 MarkSweepPolicy msp;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1047 msp.initialize_all();
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1048
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1049 assert(msp.initial_gen0_size() == expected, err_msg("%zu != %zu", msp.initial_gen0_size(), expected));
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1050 }
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1051
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1052 static void verify_scaled_initial(size_t initial_heap_size) {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1053 MarkSweepPolicy msp;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1054 msp.initialize_all();
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1055
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1056 size_t expected = msp.scale_by_NewRatio_aligned(initial_heap_size);
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1057 assert(msp.initial_gen0_size() == expected, err_msg("%zu != %zu", msp.initial_gen0_size(), expected));
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1058 assert(FLAG_IS_ERGO(NewSize) && NewSize == expected,
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1059 err_msg("NewSize should have been set ergonomically to %zu, but was %zu", expected, NewSize));
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1060 }
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1061
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1062 private:
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1063 static size_t original_InitialHeapSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1064 static size_t original_MaxHeapSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1065 static size_t original_MaxNewSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1066 static size_t original_MinHeapDeltaBytes;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1067 static size_t original_NewSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1068 static size_t original_OldSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1069
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1070 static void save_flags() {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1071 original_InitialHeapSize = InitialHeapSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1072 original_MaxHeapSize = MaxHeapSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1073 original_MaxNewSize = MaxNewSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1074 original_MinHeapDeltaBytes = MinHeapDeltaBytes;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1075 original_NewSize = NewSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1076 original_OldSize = OldSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1077 }
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1078
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1079 static void restore_flags() {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1080 InitialHeapSize = original_InitialHeapSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1081 MaxHeapSize = original_MaxHeapSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1082 MaxNewSize = original_MaxNewSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1083 MinHeapDeltaBytes = original_MinHeapDeltaBytes;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1084 NewSize = original_NewSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1085 OldSize = original_OldSize;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1086 }
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1087 };
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1088
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1089 size_t TestGenCollectorPolicy::original_InitialHeapSize = 0;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1090 size_t TestGenCollectorPolicy::original_MaxHeapSize = 0;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1091 size_t TestGenCollectorPolicy::original_MaxNewSize = 0;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1092 size_t TestGenCollectorPolicy::original_MinHeapDeltaBytes = 0;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1093 size_t TestGenCollectorPolicy::original_NewSize = 0;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1094 size_t TestGenCollectorPolicy::original_OldSize = 0;
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1095
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1096 void TestNewSize_test() {
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1097 TestGenCollectorPolicy::test();
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1098 }
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1099
1d01a7f3a336 8033426: Scale initial NewSize using NewRatio if not set on command line sjohanss parents: 13066 diff changeset	1100 #endif

Mercurial > hg > truffle

annotate src/share/vm/memory/collectorPolicy.cpp @ 20587:d63ce76a0f0e