truffle: src/share/vm/services/memoryManager.cpp annotate

annotate src/share/vm/services/memoryManager.cpp @ 1721:413ad0331a0c

6977924: Changes for 6975078 produce build error with certain gcc versions Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error. Reviewed-by: jcoomes, ysr, phh

author	johnc
date	Wed, 18 Aug 2010 10:59:06 -0700
parents	f6f3eef8a521
children	f95d63e2154a

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1089 diff changeset	2 * Copyright (c) 2003, 2005, 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: 1089 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1089 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: 1089 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
a61af66fc99e Initial load duke parents: diff changeset	25 # include "incls/_precompiled.incl"
a61af66fc99e Initial load duke parents: diff changeset	26 # include "incls/_memoryManager.cpp.incl"
a61af66fc99e Initial load duke parents: diff changeset	27
a61af66fc99e Initial load duke parents: diff changeset	28 HS_DTRACE_PROBE_DECL8(hotspot, mem__pool__gc__begin, char, int, char, int,
a61af66fc99e Initial load duke parents: diff changeset	29 size_t, size_t, size_t, size_t);
a61af66fc99e Initial load duke parents: diff changeset	30 HS_DTRACE_PROBE_DECL8(hotspot, mem__pool__gc__end, char, int, char, int,
a61af66fc99e Initial load duke parents: diff changeset	31 size_t, size_t, size_t, size_t);
a61af66fc99e Initial load duke parents: diff changeset	32
a61af66fc99e Initial load duke parents: diff changeset	33 MemoryManager::MemoryManager() {
a61af66fc99e Initial load duke parents: diff changeset	34 _num_pools = 0;
a61af66fc99e Initial load duke parents: diff changeset	35 _memory_mgr_obj = NULL;
a61af66fc99e Initial load duke parents: diff changeset	36 }
a61af66fc99e Initial load duke parents: diff changeset	37
a61af66fc99e Initial load duke parents: diff changeset	38 void MemoryManager::add_pool(MemoryPool* pool) {
a61af66fc99e Initial load duke parents: diff changeset	39 assert(_num_pools < MemoryManager::max_num_pools, "_num_pools exceeds the max");
a61af66fc99e Initial load duke parents: diff changeset	40 if (_num_pools < MemoryManager::max_num_pools) {
a61af66fc99e Initial load duke parents: diff changeset	41 _pools[_num_pools] = pool;
a61af66fc99e Initial load duke parents: diff changeset	42 _num_pools++;
a61af66fc99e Initial load duke parents: diff changeset	43 }
a61af66fc99e Initial load duke parents: diff changeset	44 pool->add_manager(this);
a61af66fc99e Initial load duke parents: diff changeset	45 }
a61af66fc99e Initial load duke parents: diff changeset	46
a61af66fc99e Initial load duke parents: diff changeset	47 MemoryManager* MemoryManager::get_code_cache_memory_manager() {
a61af66fc99e Initial load duke parents: diff changeset	48 return (MemoryManager*) new CodeCacheMemoryManager();
a61af66fc99e Initial load duke parents: diff changeset	49 }
a61af66fc99e Initial load duke parents: diff changeset	50
a61af66fc99e Initial load duke parents: diff changeset	51 GCMemoryManager* MemoryManager::get_copy_memory_manager() {
a61af66fc99e Initial load duke parents: diff changeset	52 return (GCMemoryManager*) new CopyMemoryManager();
a61af66fc99e Initial load duke parents: diff changeset	53 }
a61af66fc99e Initial load duke parents: diff changeset	54
a61af66fc99e Initial load duke parents: diff changeset	55 GCMemoryManager* MemoryManager::get_msc_memory_manager() {
a61af66fc99e Initial load duke parents: diff changeset	56 return (GCMemoryManager*) new MSCMemoryManager();
a61af66fc99e Initial load duke parents: diff changeset	57 }
a61af66fc99e Initial load duke parents: diff changeset	58
a61af66fc99e Initial load duke parents: diff changeset	59 GCMemoryManager* MemoryManager::get_parnew_memory_manager() {
a61af66fc99e Initial load duke parents: diff changeset	60 return (GCMemoryManager*) new ParNewMemoryManager();
a61af66fc99e Initial load duke parents: diff changeset	61 }
a61af66fc99e Initial load duke parents: diff changeset	62
a61af66fc99e Initial load duke parents: diff changeset	63 GCMemoryManager* MemoryManager::get_cms_memory_manager() {
a61af66fc99e Initial load duke parents: diff changeset	64 return (GCMemoryManager*) new CMSMemoryManager();
a61af66fc99e Initial load duke parents: diff changeset	65 }
a61af66fc99e Initial load duke parents: diff changeset	66
a61af66fc99e Initial load duke parents: diff changeset	67 GCMemoryManager* MemoryManager::get_psScavenge_memory_manager() {
a61af66fc99e Initial load duke parents: diff changeset	68 return (GCMemoryManager*) new PSScavengeMemoryManager();
a61af66fc99e Initial load duke parents: diff changeset	69 }
a61af66fc99e Initial load duke parents: diff changeset	70
a61af66fc99e Initial load duke parents: diff changeset	71 GCMemoryManager* MemoryManager::get_psMarkSweep_memory_manager() {
a61af66fc99e Initial load duke parents: diff changeset	72 return (GCMemoryManager*) new PSMarkSweepMemoryManager();
a61af66fc99e Initial load duke parents: diff changeset	73 }
a61af66fc99e Initial load duke parents: diff changeset	74
1089 db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	75 GCMemoryManager* MemoryManager::get_g1YoungGen_memory_manager() {
db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	76 return (GCMemoryManager*) new G1YoungGenMemoryManager();
db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	77 }
db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	78
db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	79 GCMemoryManager* MemoryManager::get_g1OldGen_memory_manager() {
db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	80 return (GCMemoryManager*) new G1OldGenMemoryManager();
db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	81 }
db0d5eba9d20 6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC tonyp parents: 0 diff changeset	82
0 a61af66fc99e Initial load duke parents: diff changeset	83 instanceOop MemoryManager::get_memory_manager_instance(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	84 // Must do an acquire so as to force ordering of subsequent
a61af66fc99e Initial load duke parents: diff changeset	85 // loads from anything _memory_mgr_obj points to or implies.
a61af66fc99e Initial load duke parents: diff changeset	86 instanceOop mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj);
a61af66fc99e Initial load duke parents: diff changeset	87 if (mgr_obj == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	88 // It's ok for more than one thread to execute the code up to the locked region.
a61af66fc99e Initial load duke parents: diff changeset	89 // Extra manager instances will just be gc'ed.
a61af66fc99e Initial load duke parents: diff changeset	90 klassOop k = Management::sun_management_ManagementFactory_klass(CHECK_0);
a61af66fc99e Initial load duke parents: diff changeset	91 instanceKlassHandle ik(THREAD, k);
a61af66fc99e Initial load duke parents: diff changeset	92
a61af66fc99e Initial load duke parents: diff changeset	93 Handle mgr_name = java_lang_String::create_from_str(name(), CHECK_0);
a61af66fc99e Initial load duke parents: diff changeset	94
a61af66fc99e Initial load duke parents: diff changeset	95 JavaValue result(T_OBJECT);
a61af66fc99e Initial load duke parents: diff changeset	96 JavaCallArguments args;
a61af66fc99e Initial load duke parents: diff changeset	97 args.push_oop(mgr_name); // Argument 1
a61af66fc99e Initial load duke parents: diff changeset	98
a61af66fc99e Initial load duke parents: diff changeset	99 symbolHandle method_name;
a61af66fc99e Initial load duke parents: diff changeset	100 symbolHandle signature;
a61af66fc99e Initial load duke parents: diff changeset	101 if (is_gc_memory_manager()) {
a61af66fc99e Initial load duke parents: diff changeset	102 method_name = vmSymbolHandles::createGarbageCollector_name();
a61af66fc99e Initial load duke parents: diff changeset	103 signature = vmSymbolHandles::createGarbageCollector_signature();
a61af66fc99e Initial load duke parents: diff changeset	104 args.push_oop(Handle()); // Argument 2 (for future extension)
a61af66fc99e Initial load duke parents: diff changeset	105 } else {
a61af66fc99e Initial load duke parents: diff changeset	106 method_name = vmSymbolHandles::createMemoryManager_name();
a61af66fc99e Initial load duke parents: diff changeset	107 signature = vmSymbolHandles::createMemoryManager_signature();
a61af66fc99e Initial load duke parents: diff changeset	108 }
a61af66fc99e Initial load duke parents: diff changeset	109
a61af66fc99e Initial load duke parents: diff changeset	110 JavaCalls::call_static(&result,
a61af66fc99e Initial load duke parents: diff changeset	111 ik,
a61af66fc99e Initial load duke parents: diff changeset	112 method_name,
a61af66fc99e Initial load duke parents: diff changeset	113 signature,
a61af66fc99e Initial load duke parents: diff changeset	114 &args,
a61af66fc99e Initial load duke parents: diff changeset	115 CHECK_0);
a61af66fc99e Initial load duke parents: diff changeset	116
a61af66fc99e Initial load duke parents: diff changeset	117 instanceOop m = (instanceOop) result.get_jobject();
a61af66fc99e Initial load duke parents: diff changeset	118 instanceHandle mgr(THREAD, m);
a61af66fc99e Initial load duke parents: diff changeset	119
a61af66fc99e Initial load duke parents: diff changeset	120 {
a61af66fc99e Initial load duke parents: diff changeset	121 // Get lock before setting _memory_mgr_obj
a61af66fc99e Initial load duke parents: diff changeset	122 // since another thread may have created the instance
a61af66fc99e Initial load duke parents: diff changeset	123 MutexLocker ml(Management_lock);
a61af66fc99e Initial load duke parents: diff changeset	124
a61af66fc99e Initial load duke parents: diff changeset	125 // Check if another thread has created the management object. We reload
a61af66fc99e Initial load duke parents: diff changeset	126 // _memory_mgr_obj here because some other thread may have initialized
a61af66fc99e Initial load duke parents: diff changeset	127 // it while we were executing the code before the lock.
a61af66fc99e Initial load duke parents: diff changeset	128 //
a61af66fc99e Initial load duke parents: diff changeset	129 // The lock has done an acquire, so the load can't float above it, but
a61af66fc99e Initial load duke parents: diff changeset	130 // we need to do a load_acquire as above.
a61af66fc99e Initial load duke parents: diff changeset	131 mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj);
a61af66fc99e Initial load duke parents: diff changeset	132 if (mgr_obj != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	133 return mgr_obj;
a61af66fc99e Initial load duke parents: diff changeset	134 }
a61af66fc99e Initial load duke parents: diff changeset	135
a61af66fc99e Initial load duke parents: diff changeset	136 // Get the address of the object we created via call_special.
a61af66fc99e Initial load duke parents: diff changeset	137 mgr_obj = mgr();
a61af66fc99e Initial load duke parents: diff changeset	138
a61af66fc99e Initial load duke parents: diff changeset	139 // Use store barrier to make sure the memory accesses associated
a61af66fc99e Initial load duke parents: diff changeset	140 // with creating the management object are visible before publishing
a61af66fc99e Initial load duke parents: diff changeset	141 // its address. The unlock will publish the store to _memory_mgr_obj
a61af66fc99e Initial load duke parents: diff changeset	142 // because it does a release first.
a61af66fc99e Initial load duke parents: diff changeset	143 OrderAccess::release_store_ptr(&_memory_mgr_obj, mgr_obj);
a61af66fc99e Initial load duke parents: diff changeset	144 }
a61af66fc99e Initial load duke parents: diff changeset	145 }
a61af66fc99e Initial load duke parents: diff changeset	146
a61af66fc99e Initial load duke parents: diff changeset	147 return mgr_obj;
a61af66fc99e Initial load duke parents: diff changeset	148 }
a61af66fc99e Initial load duke parents: diff changeset	149
a61af66fc99e Initial load duke parents: diff changeset	150 void MemoryManager::oops_do(OopClosure* f) {
a61af66fc99e Initial load duke parents: diff changeset	151 f->do_oop((oop*) &_memory_mgr_obj);
a61af66fc99e Initial load duke parents: diff changeset	152 }
a61af66fc99e Initial load duke parents: diff changeset	153
a61af66fc99e Initial load duke parents: diff changeset	154 GCStatInfo::GCStatInfo(int num_pools) {
a61af66fc99e Initial load duke parents: diff changeset	155 // initialize the arrays for memory usage
a61af66fc99e Initial load duke parents: diff changeset	156 _before_gc_usage_array = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools);
a61af66fc99e Initial load duke parents: diff changeset	157 _after_gc_usage_array = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools);
a61af66fc99e Initial load duke parents: diff changeset	158 size_t len = num_pools * sizeof(MemoryUsage);
a61af66fc99e Initial load duke parents: diff changeset	159 memset(_before_gc_usage_array, 0, len);
a61af66fc99e Initial load duke parents: diff changeset	160 memset(_after_gc_usage_array, 0, len);
a61af66fc99e Initial load duke parents: diff changeset	161 _usage_array_size = num_pools;
a61af66fc99e Initial load duke parents: diff changeset	162 }
a61af66fc99e Initial load duke parents: diff changeset	163
a61af66fc99e Initial load duke parents: diff changeset	164 GCStatInfo::~GCStatInfo() {
a61af66fc99e Initial load duke parents: diff changeset	165 FREE_C_HEAP_ARRAY(MemoryUsage*, _before_gc_usage_array);
a61af66fc99e Initial load duke parents: diff changeset	166 FREE_C_HEAP_ARRAY(MemoryUsage*, _after_gc_usage_array);
a61af66fc99e Initial load duke parents: diff changeset	167 }
a61af66fc99e Initial load duke parents: diff changeset	168
a61af66fc99e Initial load duke parents: diff changeset	169 void GCStatInfo::set_gc_usage(int pool_index, MemoryUsage usage, bool before_gc) {
a61af66fc99e Initial load duke parents: diff changeset	170 MemoryUsage* gc_usage_array;
a61af66fc99e Initial load duke parents: diff changeset	171 if (before_gc) {
a61af66fc99e Initial load duke parents: diff changeset	172 gc_usage_array = _before_gc_usage_array;
a61af66fc99e Initial load duke parents: diff changeset	173 } else {
a61af66fc99e Initial load duke parents: diff changeset	174 gc_usage_array = _after_gc_usage_array;
a61af66fc99e Initial load duke parents: diff changeset	175 }
a61af66fc99e Initial load duke parents: diff changeset	176 gc_usage_array[pool_index] = usage;
a61af66fc99e Initial load duke parents: diff changeset	177 }
a61af66fc99e Initial load duke parents: diff changeset	178
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	179 void GCStatInfo::clear() {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	180 _index = 0;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	181 _start_time = 0L;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	182 _end_time = 0L;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	183 size_t len = _usage_array_size * sizeof(MemoryUsage);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	184 memset(_before_gc_usage_array, 0, len);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	185 memset(_after_gc_usage_array, 0, len);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	186 }
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	187
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	188
0 a61af66fc99e Initial load duke parents: diff changeset	189 GCMemoryManager::GCMemoryManager() : MemoryManager() {
a61af66fc99e Initial load duke parents: diff changeset	190 _num_collections = 0;
a61af66fc99e Initial load duke parents: diff changeset	191 _last_gc_stat = NULL;
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	192 _last_gc_lock = new Mutex(Mutex::leaf, "_last_gc_lock", true);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	193 _current_gc_stat = NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	194 _num_gc_threads = 1;
a61af66fc99e Initial load duke parents: diff changeset	195 }
a61af66fc99e Initial load duke parents: diff changeset	196
a61af66fc99e Initial load duke parents: diff changeset	197 GCMemoryManager::~GCMemoryManager() {
a61af66fc99e Initial load duke parents: diff changeset	198 delete _last_gc_stat;
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	199 delete _last_gc_lock;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	200 delete _current_gc_stat;
0 a61af66fc99e Initial load duke parents: diff changeset	201 }
a61af66fc99e Initial load duke parents: diff changeset	202
a61af66fc99e Initial load duke parents: diff changeset	203 void GCMemoryManager::initialize_gc_stat_info() {
a61af66fc99e Initial load duke parents: diff changeset	204 assert(MemoryService::num_memory_pools() > 0, "should have one or more memory pools");
a61af66fc99e Initial load duke parents: diff changeset	205 _last_gc_stat = new GCStatInfo(MemoryService::num_memory_pools());
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	206 _current_gc_stat = new GCStatInfo(MemoryService::num_memory_pools());
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	207 // tracking concurrent collections we need two objects: one to update, and one to
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	208 // hold the publicly available "last (completed) gc" information.
0 a61af66fc99e Initial load duke parents: diff changeset	209 }
a61af66fc99e Initial load duke parents: diff changeset	210
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	211 void GCMemoryManager::gc_begin(bool recordGCBeginTime, bool recordPreGCUsage,
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	212 bool recordAccumulatedGCTime) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	213 assert(_last_gc_stat != NULL && _current_gc_stat != NULL, "Just checking");
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	214 if (recordAccumulatedGCTime) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	215 _accumulated_timer.start();
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	216 }
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	217 // _num_collections now increases in gc_end, to count completed collections
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	218 if (recordGCBeginTime) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	219 _current_gc_stat->set_index(_num_collections+1);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	220 _current_gc_stat->set_start_time(Management::timestamp());
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	221 }
0 a61af66fc99e Initial load duke parents: diff changeset	222
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	223 if (recordPreGCUsage) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	224 // Keep memory usage of all memory pools
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	225 for (int i = 0; i < MemoryService::num_memory_pools(); i++) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	226 MemoryPool* pool = MemoryService::get_memory_pool(i);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	227 MemoryUsage usage = pool->get_memory_usage();
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	228 _current_gc_stat->set_before_gc_usage(i, usage);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	229 HS_DTRACE_PROBE8(hotspot, mem__pool__gc__begin,
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	230 name(), strlen(name()),
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	231 pool->name(), strlen(pool->name()),
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	232 usage.init_size(), usage.used(),
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	233 usage.committed(), usage.max_size());
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	234 }
0 a61af66fc99e Initial load duke parents: diff changeset	235 }
a61af66fc99e Initial load duke parents: diff changeset	236 }
a61af66fc99e Initial load duke parents: diff changeset	237
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	238 // A collector MUST, even if it does not complete for some reason,
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	239 // make a TraceMemoryManagerStats object where countCollection is true,
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	240 // to ensure the current gc stat is placed in _last_gc_stat.
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	241 void GCMemoryManager::gc_end(bool recordPostGCUsage,
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	242 bool recordAccumulatedGCTime,
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	243 bool recordGCEndTime, bool countCollection) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	244 if (recordAccumulatedGCTime) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	245 _accumulated_timer.stop();
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	246 }
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	247 if (recordGCEndTime) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	248 _current_gc_stat->set_end_time(Management::timestamp());
0 a61af66fc99e Initial load duke parents: diff changeset	249 }
a61af66fc99e Initial load duke parents: diff changeset	250
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	251 if (recordPostGCUsage) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	252 int i;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	253 // keep the last gc statistics for all memory pools
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	254 for (i = 0; i < MemoryService::num_memory_pools(); i++) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	255 MemoryPool* pool = MemoryService::get_memory_pool(i);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	256 MemoryUsage usage = pool->get_memory_usage();
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	257
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	258 HS_DTRACE_PROBE8(hotspot, mem__pool__gc__end,
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	259 name(), strlen(name()),
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	260 pool->name(), strlen(pool->name()),
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	261 usage.init_size(), usage.used(),
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	262 usage.committed(), usage.max_size());
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	263
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	264 _current_gc_stat->set_after_gc_usage(i, usage);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	265 }
0 a61af66fc99e Initial load duke parents: diff changeset	266
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	267 // Set last collection usage of the memory pools managed by this collector
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	268 for (i = 0; i < num_memory_pools(); i++) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	269 MemoryPool* pool = get_memory_pool(i);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	270 MemoryUsage usage = pool->get_memory_usage();
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	271
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	272 // Compare with GC usage threshold
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	273 pool->set_last_collection_usage(usage);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	274 LowMemoryDetector::detect_after_gc_memory(pool);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	275 }
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	276 }
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	277 if (countCollection) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	278 _num_collections++;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	279 // alternately update two objects making one public when complete
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	280 {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	281 MutexLockerEx ml(_last_gc_lock, Mutex::_no_safepoint_check_flag);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	282 GCStatInfo *tmp = _last_gc_stat;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	283 _last_gc_stat = _current_gc_stat;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	284 _current_gc_stat = tmp;
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	285 // reset the current stat for diagnosability purposes
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	286 _current_gc_stat->clear();
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	287 }
0 a61af66fc99e Initial load duke parents: diff changeset	288 }
a61af66fc99e Initial load duke parents: diff changeset	289 }
1703 f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	290
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	291 size_t GCMemoryManager::get_last_gc_stat(GCStatInfo* dest) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	292 MutexLockerEx ml(_last_gc_lock, Mutex::_no_safepoint_check_flag);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	293 if (_last_gc_stat->gc_index() != 0) {
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	294 dest->set_index(_last_gc_stat->gc_index());
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	295 dest->set_start_time(_last_gc_stat->start_time());
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	296 dest->set_end_time(_last_gc_stat->end_time());
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	297 assert(dest->usage_array_size() == _last_gc_stat->usage_array_size(),
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	298 "Must have same array size");
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	299 size_t len = dest->usage_array_size() * sizeof(MemoryUsage);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	300 memcpy(dest->before_gc_usage_array(), _last_gc_stat->before_gc_usage_array(), len);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	301 memcpy(dest->after_gc_usage_array(), _last_gc_stat->after_gc_usage_array(), len);
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	302 }
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	303 return _last_gc_stat->gc_index();
f6f3eef8a521 6581734: CMS Old Gen's collection usage is zero after GC which is incorrect kevinw parents: 1552 diff changeset	304 }

Mercurial > hg > truffle

annotate src/share/vm/services/memoryManager.cpp @ 1721:413ad0331a0c