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

annotate src/share/vm/gc_implementation/g1/g1MonitoringSupport.cpp @ 3980:8229bd737950

7075646: G1: fix inconsistencies in the monitoring data Summary: Fixed a few inconsistencies in the monitoring data, in particular when reported from jstat. Reviewed-by: jmasa, brutisso, johnc

author	tonyp
date	Fri, 23 Sep 2011 16:07:49 -0400
parents	b52782ae3880
children	b5290bf0a9e4

rev	line source
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	1 /*
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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 #include "precompiled.hpp"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	26 #include "gc_implementation/g1/g1MonitoringSupport.hpp"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	28 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	29
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	30 G1GenerationCounters::G1GenerationCounters(G1MonitoringSupport* g1mm,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	31 const char* name,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	32 int ordinal, int spaces,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	33 size_t min_capacity,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	34 size_t max_capacity,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	35 size_t curr_capacity)
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	36 : GenerationCounters(name, ordinal, spaces, min_capacity,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	37 max_capacity, curr_capacity), _g1mm(g1mm) { }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	38
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	39 // We pad the capacity three times given that the young generation
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	40 // contains three spaces (eden and two survivors).
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	41 G1YoungGenerationCounters::G1YoungGenerationCounters(G1MonitoringSupport* g1mm,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	42 const char* name)
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	43 : G1GenerationCounters(g1mm, name, 0 /* ordinal /, 3 / spaces */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	44 G1MonitoringSupport::pad_capacity(0, 3) /* min_capacity */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	45 G1MonitoringSupport::pad_capacity(g1mm->young_gen_max(), 3),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	46 G1MonitoringSupport::pad_capacity(0, 3) /* curr_capacity */) {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	47 update_all();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	48 }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	49
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	50 G1OldGenerationCounters::G1OldGenerationCounters(G1MonitoringSupport* g1mm,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	51 const char* name)
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	52 : G1GenerationCounters(g1mm, name, 1 /* ordinal /, 1 / spaces */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	53 G1MonitoringSupport::pad_capacity(0) /* min_capacity */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	54 G1MonitoringSupport::pad_capacity(g1mm->old_gen_max()),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	55 G1MonitoringSupport::pad_capacity(0) /* curr_capacity */) {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	56 update_all();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	57 }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	58
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	59 void G1YoungGenerationCounters::update_all() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	60 size_t committed =
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	61 G1MonitoringSupport::pad_capacity(_g1mm->young_gen_committed(), 3);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	62 _current_size->set_value(committed);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	63 }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	64
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	65 void G1OldGenerationCounters::update_all() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	66 size_t committed =
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	67 G1MonitoringSupport::pad_capacity(_g1mm->old_gen_committed());
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	68 _current_size->set_value(committed);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	69 }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	70
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	71 G1MonitoringSupport::G1MonitoringSupport(G1CollectedHeap* g1h) :
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	72 _g1h(g1h),
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	73 _incremental_collection_counters(NULL),
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	74 _full_collection_counters(NULL),
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	75 _old_collection_counters(NULL),
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	76 _old_space_counters(NULL),
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	77 _young_collection_counters(NULL),
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	78 _eden_counters(NULL),
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	79 _from_counters(NULL),
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	80 _to_counters(NULL),
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	81
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	82 _overall_reserved(0),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	83 _overall_committed(0), _overall_used(0),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	84 _young_region_num(0),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	85 _young_gen_committed(0),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	86 _eden_committed(0), _eden_used(0),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	87 _survivor_committed(0), _survivor_used(0),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	88 _old_committed(0), _old_used(0) {
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 _overall_reserved = g1h->max_capacity();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	91 recalculate_sizes();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	92
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	93 // Counters for GC collections
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	94 //
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	95 // name "collector.0". In a generational collector this would be the
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	96 // young generation collection.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	97 _incremental_collection_counters =
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	98 new CollectorCounters("G1 incremental collections", 0);
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	99 // name "collector.1". In a generational collector this would be the
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	100 // old generation collection.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	101 _full_collection_counters =
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	102 new CollectorCounters("G1 stop-the-world full collections", 1);
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	103
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	104 // timer sampling for all counters supporting sampling only update the
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	105 // used value. See the take_sample() method. G1 requires both used and
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	106 // capacity updated so sampling is not currently used. It might
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	107 // be sufficient to update all counters in take_sample() even though
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	108 // take_sample() only returns "used". When sampling was used, there
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	109 // were some anomolous values emitted which may have been the consequence
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	110 // of not updating all values simultaneously (i.e., see the calculation done
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	111 // in eden_space_used(), is it possbile that the values used to
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	112 // calculate either eden_used or survivor_used are being updated by
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	113 // the collector when the sample is being done?).
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	114 const bool sampled = false;
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	115
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	116 // "Generation" and "Space" counters.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	117 //
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	118 // name "generation.1" This is logically the old generation in
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	119 // generational GC terms. The "1, 1" parameters are for
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	120 // the n-th generation (=1) with 1 space.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	121 // Counters are created from minCapacity, maxCapacity, and capacity
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	122 _old_collection_counters = new G1OldGenerationCounters(this, "old");
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	123
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	124 // name "generation.1.space.0"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	125 // Counters are created from maxCapacity, capacity, initCapacity,
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	126 // and used.
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	127 _old_space_counters = new HSpaceCounters("space", 0 /* ordinal */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	128 pad_capacity(overall_reserved()) /* max_capacity */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	129 pad_capacity(old_space_committed()) /* init_capacity */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	130 _old_collection_counters);
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	131
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	132 // Young collection set
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	133 // name "generation.0". This is logically the young generation.
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	134 // The "0, 3" are paremeters for the n-th genertaion (=0) with 3 spaces.
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	135 // See _old_collection_counters for additional counters
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	136 _young_collection_counters = new G1YoungGenerationCounters(this, "young");
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	137
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	138 // name "generation.0.space.0"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	139 // See _old_space_counters for additional counters
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	140 _eden_counters = new HSpaceCounters("eden", 0 /* ordinal */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	141 pad_capacity(overall_reserved()) /* max_capacity */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	142 pad_capacity(eden_space_committed()) /* init_capacity */,
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	143 _young_collection_counters);
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	144
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	145 // name "generation.0.space.1"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	146 // See _old_space_counters for additional counters
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	147 // Set the arguments to indicate that this survivor space is not used.
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	148 _from_counters = new HSpaceCounters("s0", 1 /* ordinal */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	149 pad_capacity(0) /* max_capacity */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	150 pad_capacity(0) /* init_capacity */,
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	151 _young_collection_counters);
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	152 // Given that this survivor space is not used, we update it here
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	153 // once to reflect that its used space is 0 so that we don't have to
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	154 // worry about updating it again later.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	155 _from_counters->update_used(0);
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	156
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	157 // name "generation.0.space.2"
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	158 // See _old_space_counters for additional counters
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	159 _to_counters = new HSpaceCounters("s1", 2 /* ordinal */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	160 pad_capacity(overall_reserved()) /* max_capacity */,
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	161 pad_capacity(survivor_space_committed()) /* init_capacity */,
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	162 _young_collection_counters);
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	163 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	164
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	165 void G1MonitoringSupport::recalculate_sizes() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	166 G1CollectedHeap* g1 = g1h();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	167
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	168 // Recalculate all the sizes from scratch. We assume that this is
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	169 // called at a point where no concurrent updates to the various
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	170 // values we read here are possible (i.e., at a STW phase at the end
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	171 // of a GC).
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	172
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	173 size_t young_list_length = g1->young_list()->length();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	174 size_t survivor_list_length = g1->g1_policy()->recorded_survivor_regions();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	175 assert(young_list_length >= survivor_list_length, "invariant");
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	176 size_t eden_list_length = young_list_length - survivor_list_length;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	177 // Max length includes any potential extensions to the young gen
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	178 // we'll do when the GC locker is active.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	179 size_t young_list_max_length = g1->g1_policy()->young_list_max_length();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	180 assert(young_list_max_length >= survivor_list_length, "invariant");
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	181 size_t eden_list_max_length = young_list_max_length - survivor_list_length;
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	182
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	183 _overall_used = g1->used_unlocked();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	184 _eden_used = eden_list_length * HeapRegion::GrainBytes;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	185 _survivor_used = survivor_list_length * HeapRegion::GrainBytes;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	186 _young_region_num = young_list_length;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	187 _old_used = subtract_up_to_zero(_overall_used, _eden_used + _survivor_used);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	188
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	189 // First calculate the committed sizes that can be calculated independently.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	190 _survivor_committed = _survivor_used;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	191 _old_committed = HeapRegion::align_up_to_region_byte_size(_old_used);
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	192
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	193 // Next, start with the overall committed size.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	194 _overall_committed = g1->capacity();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	195 size_t committed = _overall_committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	196
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	197 // Remove the committed size we have calculated so far (for the
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	198 // survivor and old space).
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	199 assert(committed >= (_survivor_committed + _old_committed), "sanity");
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	200 committed -= _survivor_committed + _old_committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	201
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	202 // Next, calculate and remove the committed size for the eden.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	203 _eden_committed = eden_list_max_length * HeapRegion::GrainBytes;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	204 // Somewhat defensive: be robust in case there are inaccuracies in
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	205 // the calculations
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	206 _eden_committed = MIN2(_eden_committed, committed);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	207 committed -= _eden_committed;
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	208
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	209 // Finally, give the rest to the old space...
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	210 _old_committed += committed;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	211 // ..and calculate the young gen committed.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	212 _young_gen_committed = _eden_committed + _survivor_committed;
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	213
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	214 assert(_overall_committed ==
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	215 (_eden_committed + _survivor_committed + _old_committed),
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	216 "the committed sizes should add up");
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	217 // Somewhat defensive: cap the eden used size to make sure it
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	218 // never exceeds the committed size.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	219 _eden_used = MIN2(_eden_used, _eden_committed);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	220 // _survivor_committed and _old_committed are calculated in terms of
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	221 // the corresponding _*_used value, so the next two conditions
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	222 // should hold.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	223 assert(_survivor_used <= _survivor_committed, "post-condition");
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	224 assert(_old_used <= _old_committed, "post-condition");
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	225 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	226
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	227 void G1MonitoringSupport::recalculate_eden_size() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	228 G1CollectedHeap* g1 = g1h();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	229
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	230 // When a new eden region is allocated, only the eden_used size is
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	231 // affected (since we have recalculated everything else at the last GC).
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	232
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	233 size_t young_region_num = g1h()->young_list()->length();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	234 if (young_region_num > _young_region_num) {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	235 size_t diff = young_region_num - _young_region_num;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	236 _eden_used += diff * HeapRegion::GrainBytes;
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	237 // Somewhat defensive: cap the eden used size to make sure it
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	238 // never exceeds the committed size.
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	239 _eden_used = MIN2(_eden_used, _eden_committed);
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	240 _young_region_num = young_region_num;
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	241 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	242 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	243
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	244 void G1MonitoringSupport::update_sizes() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	245 recalculate_sizes();
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	246 if (UsePerfData) {
3980 8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	247 eden_counters()->update_capacity(pad_capacity(eden_space_committed()));
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	248 eden_counters()->update_used(eden_space_used());
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	249 // only the to survivor space (s1) is active, so we don't need to
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	250 // update the counteres for the from survivor space (s0)
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	251 to_counters()->update_capacity(pad_capacity(survivor_space_committed()));
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	252 to_counters()->update_used(survivor_space_used());
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	253 old_space_counters()->update_capacity(pad_capacity(old_space_committed()));
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	254 old_space_counters()->update_used(old_space_used());
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	255 old_collection_counters()->update_all();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	256 young_collection_counters()->update_all();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	257 }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	258 }
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	259
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	260 void G1MonitoringSupport::update_eden_size() {
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	261 recalculate_eden_size();
8229bd737950 7075646: G1: fix inconsistencies in the monitoring data tonyp parents: 3289 diff changeset	262 if (UsePerfData) {
3289 b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	263 eden_counters()->update_used(eden_space_used());
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	264 }
b52782ae3880 6946417: G1: Java VisualVM does not support G1 properly. jmasa parents: diff changeset	265 }

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/g1MonitoringSupport.cpp @ 3980:8229bd737950