truffle: src/share/vm/gc_implementation/g1/g1MonitoringSupport.hpp annotate

annotate src/share/vm/gc_implementation/g1/g1MonitoringSupport.hpp @ 8733:9def4075da6d

8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate(). Reviewed-by: johnc, ysr Contributed-by: tamao <tao.mao@oracle.com>

author	tamao
date	Tue, 05 Mar 2013 15:36:56 -0800
parents	d2a62e0f25eb
children	f2110083203d

rev	line source
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	1 /*
6010 720b6a76dd9d 7157073: G1: type change size_t -> uint for region counts / indexes tonyp parents: 4832 diff changeset	2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	4 *
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	7 * published by the Free Software Foundation.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	8 *
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	13 * accompanied this code).
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	14 *
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	18 *
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	21 * questions.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	22 *
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	23 */
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	24
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1MONITORINGSUPPORT_HPP
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1MONITORINGSUPPORT_HPP
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	27
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	28 #include "gc_implementation/shared/hSpaceCounters.hpp"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	29
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	30 class G1CollectedHeap;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	31
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	32 // Class for monitoring logical spaces in G1. It provides data for
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	33 // both G1's jstat counters as well as G1's memory pools.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	34 //
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	35 // G1 splits the heap into heap regions and each heap region belongs
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	36 // to one of the following categories:
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	37 //
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	38 // * eden : regions that have been allocated since the last GC
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	39 // * survivors : regions with objects that survived the last few GCs
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	40 // * old : long-lived non-humongous regions
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	41 // * humongous : humongous regions
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	42 // * free : free regions
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	43 //
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	44 // The combination of eden and survivor regions form the equivalent of
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	45 // the young generation in the other GCs. The combination of old and
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	46 // humongous regions form the equivalent of the old generation in the
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	47 // other GCs. Free regions do not have a good equivalent in the other
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	48 // GCs given that they can be allocated as any of the other region types.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	49 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	50 // The monitoring tools expect the heap to contain a number of
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	51 // generations (young, old, perm) and each generation to contain a
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	52 // number of spaces (young: eden, survivors, old). Given that G1 does
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	53 // not maintain those spaces physically (e.g., the set of
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	54 // non-contiguous eden regions can be considered as a "logical"
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	55 // space), we'll provide the illusion that those generations and
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	56 // spaces exist. In reality, each generation and space refers to a set
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	57 // of heap regions that are potentially non-contiguous.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	58 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	59 // This class provides interfaces to access the min, current, and max
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	60 // capacity and current occupancy for each of G1's logical spaces and
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	61 // generations we expose to the monitoring tools. Also provided are
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	62 // counters for G1 concurrent collections and stop-the-world full heap
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	63 // collections.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	64 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	65 // Below is a description of how the various sizes are calculated.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	66 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	67 // * Current Capacity
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	68 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	69 // - heap_capacity = current heap capacity (e.g., current committed size)
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	70 // - young_gen_capacity = current max young gen target capacity
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	71 // (i.e., young gen target capacity + max allowed expansion capacity)
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	72 // - survivor_capacity = current survivor region capacity
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	73 // - eden_capacity = young_gen_capacity - survivor_capacity
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	74 // - old_capacity = heap_capacity - young_gen_capacity
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	75 //
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	76 // What we do in the above is to distribute the free regions among
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	77 // eden_capacity and old_capacity.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	78 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	79 // * Occupancy
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	80 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	81 // - young_gen_used = current young region capacity
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	82 // - survivor_used = survivor_capacity
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	83 // - eden_used = young_gen_used - survivor_used
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	84 // - old_used = overall_used - young_gen_used
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	85 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	86 // Unfortunately, we currently only keep track of the number of
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	87 // currently allocated young and survivor regions + the overall used
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	88 // bytes in the heap, so the above can be a little inaccurate.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	89 //
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	90 // * Min Capacity
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	91 //
4832 a8a126788ea0 7078465: G1: Don't use the undefined value (-1) for the G1 old memory pool max size tonyp parents: 4710 diff changeset	92 // We set this to 0 for all spaces.
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	93 //
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	94 // * Max Capacity
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	95 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	96 // For jstat, we set the max capacity of all spaces to heap_capacity,
4832 a8a126788ea0 7078465: G1: Don't use the undefined value (-1) for the G1 old memory pool max size tonyp parents: 4710 diff changeset	97 // given that we don't always have a reasonable upper bound on how big
a8a126788ea0 7078465: G1: Don't use the undefined value (-1) for the G1 old memory pool max size tonyp parents: 4710 diff changeset	98 // each space can grow. For the memory pools, we make the max
a8a126788ea0 7078465: G1: Don't use the undefined value (-1) for the G1 old memory pool max size tonyp parents: 4710 diff changeset	99 // capacity undefined with the exception of the old memory pool for
a8a126788ea0 7078465: G1: Don't use the undefined value (-1) for the G1 old memory pool max size tonyp parents: 4710 diff changeset	100 // which we make the max capacity same as the max heap capacity.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	101 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	102 // If we had more accurate occupancy / capacity information per
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	103 // region set the above calculations would be greatly simplified and
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	104 // be made more accurate.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	105 //
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	106 // We update all the above synchronously and we store the results in
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	107 // fields so that we just read said fields when needed. A subtle point
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	108 // is that all the above sizes need to be recalculated when the old
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	109 // gen changes capacity (after a GC or after a humongous allocation)
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	110 // but only the eden occupancy changes when a new eden region is
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	111 // allocated. So, in the latter case we have minimal recalcuation to
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	112 // do which is important as we want to keep the eden region allocation
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	113 // path as low-overhead as possible.
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	114
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 6010 diff changeset	115 class G1MonitoringSupport : public CHeapObj<mtGC> {
3984 81aa07130d30 7097048: G1: extend the G1 SA changes to print per-heap space information tonyp parents: 3980 diff changeset	116 friend class VMStructs;
81aa07130d30 7097048: G1: extend the G1 SA changes to print per-heap space information tonyp parents: 3980 diff changeset	117
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	118 G1CollectedHeap* _g1h;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	119
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	120 // jstat performance counters
4710 41406797186b 7113012: G1: rename not-fully-young GCs as "mixed" tonyp parents: 3984 diff changeset	121 // incremental collections both young and mixed
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	122 CollectorCounters* _incremental_collection_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	123 // full stop-the-world collections
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	124 CollectorCounters* _full_collection_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	125 // young collection set counters. The _eden_counters,
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	126 // _from_counters, and _to_counters are associated with
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	127 // this "generational" counter.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	128 GenerationCounters* _young_collection_counters;
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	129 // old collection set counters. The _old_space_counters
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	130 // below are associated with this "generational" counter.
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	131 GenerationCounters* _old_collection_counters;
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	132 // Counters for the capacity and used for
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	133 // the whole heap
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	134 HSpaceCounters* _old_space_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	135 // the young collection
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	136 HSpaceCounters* _eden_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	137 // the survivor collection (only one, _to_counters, is actively used)
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	138 HSpaceCounters* _from_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	139 HSpaceCounters* _to_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	140
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	141 // When it's appropriate to recalculate the various sizes (at the
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	142 // end of a GC, when a new eden region is allocated, etc.) we store
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	143 // them here so that we can easily report them when needed and not
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	144 // have to recalculate them every time.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	145
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	146 size_t _overall_reserved;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	147 size_t _overall_committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	148 size_t _overall_used;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	149
6010 720b6a76dd9d 7157073: G1: type change size_t -> uint for region counts / indexes tonyp parents: 4832 diff changeset	150 uint _young_region_num;
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	151 size_t _young_gen_committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	152 size_t _eden_committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	153 size_t _eden_used;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	154 size_t _survivor_committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	155 size_t _survivor_used;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	156
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	157 size_t _old_committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	158 size_t _old_used;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	159
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	160 G1CollectedHeap* g1h() { return _g1h; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	161
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	162 // It returns x - y if x > y, 0 otherwise.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	163 // As described in the comment above, some of the inputs to the
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	164 // calculations we have to do are obtained concurrently and hence
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	165 // may be inconsistent with each other. So, this provides a
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	166 // defensive way of performing the subtraction and avoids the value
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	167 // going negative (which would mean a very large result, given that
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	168 // the parameter are size_t).
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	169 static size_t subtract_up_to_zero(size_t x, size_t y) {
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	170 if (x > y) {
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	171 return x - y;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	172 } else {
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	173 return 0;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	174 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	175 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	176
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	177 // Recalculate all the sizes.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	178 void recalculate_sizes();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	179 // Recalculate only what's necessary when a new eden region is allocated.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	180 void recalculate_eden_size();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	181
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	182 public:
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	183 G1MonitoringSupport(G1CollectedHeap* g1h);
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	184
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	185 // Unfortunately, the jstat tool assumes that no space has 0
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	186 // capacity. In our case, given that each space is logical, it's
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	187 // possible that no regions will be allocated to it, hence to have 0
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	188 // capacity (e.g., if there are no survivor regions, the survivor
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	189 // space has 0 capacity). The way we deal with this is to always pad
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	190 // each capacity value we report to jstat by a very small amount to
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	191 // make sure that it's never zero. Given that we sometimes have to
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	192 // report a capacity of a generation that contains several spaces
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	193 // (e.g., young gen includes one eden, two survivor spaces), the
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	194 // mult parameter is provided in order to adding the appropriate
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	195 // padding multiple times so that the capacities add up correctly.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	196 static size_t pad_capacity(size_t size_bytes, size_t mult = 1) {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	197 return size_bytes + MinObjAlignmentInBytes * mult;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	198 }
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	199
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	200 // Recalculate all the sizes from scratch and update all the jstat
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	201 // counters accordingly.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	202 void update_sizes();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	203 // Recalculate only what's necessary when a new eden region is
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	204 // allocated and update any jstat counters that need to be updated.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	205 void update_eden_size();
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	206
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	207 CollectorCounters* incremental_collection_counters() {
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	208 return _incremental_collection_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	209 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	210 CollectorCounters* full_collection_counters() {
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	211 return _full_collection_counters;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	212 }
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	213 GenerationCounters* young_collection_counters() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	214 return _young_collection_counters;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	215 }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	216 GenerationCounters* old_collection_counters() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	217 return _old_collection_counters;
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	218 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	219 HSpaceCounters* old_space_counters() { return _old_space_counters; }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	220 HSpaceCounters* eden_counters() { return _eden_counters; }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	221 HSpaceCounters* from_counters() { return _from_counters; }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	222 HSpaceCounters* to_counters() { return _to_counters; }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	223
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	224 // Monitoring support used by
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	225 // MemoryService
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	226 // jstat counters
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	227
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	228 size_t overall_reserved() { return _overall_reserved; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	229 size_t overall_committed() { return _overall_committed; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	230 size_t overall_used() { return _overall_used; }
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	231
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	232 size_t young_gen_committed() { return _young_gen_committed; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	233 size_t young_gen_max() { return overall_reserved(); }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	234 size_t eden_space_committed() { return _eden_committed; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	235 size_t eden_space_used() { return _eden_used; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	236 size_t survivor_space_committed() { return _survivor_committed; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	237 size_t survivor_space_used() { return _survivor_used; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	238
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	239 size_t old_gen_committed() { return old_space_committed(); }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	240 size_t old_gen_max() { return overall_reserved(); }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	241 size_t old_space_committed() { return _old_committed; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	242 size_t old_space_used() { return _old_used; }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	243 };
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	244
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	245 class G1GenerationCounters: public GenerationCounters {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	246 protected:
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	247 G1MonitoringSupport* _g1mm;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	248
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	249 public:
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	250 G1GenerationCounters(G1MonitoringSupport* g1mm,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	251 const char* name, int ordinal, int spaces,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	252 size_t min_capacity, size_t max_capacity,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	253 size_t curr_capacity);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	254 };
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	255
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	256 class G1YoungGenerationCounters: public G1GenerationCounters {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	257 public:
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	258 G1YoungGenerationCounters(G1MonitoringSupport* g1mm, const char* name);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	259 virtual void update_all();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	260 };
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	261
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	262 class G1OldGenerationCounters: public G1GenerationCounters {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	263 public:
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	264 G1OldGenerationCounters(G1MonitoringSupport* g1mm, const char* name);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	265 virtual void update_all();
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	266 };
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	267
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	268 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1MONITORINGSUPPORT_HPP

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/g1MonitoringSupport.hpp @ 8733:9def4075da6d