Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(858)

Side by Side Diff: src/heap.cc

Issue 11299154: Allow incremental marking when expose_gc is turned on. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « src/extensions/gc-extension.cc ('k') | src/incremental-marking.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 5304 matching lines...) Expand 10 before | Expand all | Expand 10 after
5315 size_factor * IncrementalMarking::kAllocatedThreshold; 5315 size_factor * IncrementalMarking::kAllocatedThreshold;
5316 5316
5317 if (contexts_disposed_ > 0) { 5317 if (contexts_disposed_ > 0) {
5318 if (hint >= kMaxHint) { 5318 if (hint >= kMaxHint) {
5319 // The embedder is requesting a lot of GC work after context disposal, 5319 // The embedder is requesting a lot of GC work after context disposal,
5320 // we age inline caches so that they don't keep objects from 5320 // we age inline caches so that they don't keep objects from
5321 // the old context alive. 5321 // the old context alive.
5322 AgeInlineCaches(); 5322 AgeInlineCaches();
5323 } 5323 }
5324 int mark_sweep_time = Min(TimeMarkSweepWouldTakeInMs(), 1000); 5324 int mark_sweep_time = Min(TimeMarkSweepWouldTakeInMs(), 1000);
5325 if (hint >= mark_sweep_time && !FLAG_expose_gc && 5325 if (hint >= mark_sweep_time && incremental_marking()->IsStopped()) {
5326 incremental_marking()->IsStopped()) {
5327 HistogramTimerScope scope(isolate_->counters()->gc_context()); 5326 HistogramTimerScope scope(isolate_->counters()->gc_context());
5328 CollectAllGarbage(kReduceMemoryFootprintMask, 5327 CollectAllGarbage(kReduceMemoryFootprintMask,
5329 "idle notification: contexts disposed"); 5328 "idle notification: contexts disposed");
5330 } else { 5329 } else {
5331 AdvanceIdleIncrementalMarking(step_size); 5330 AdvanceIdleIncrementalMarking(step_size);
5332 contexts_disposed_ = 0; 5331 contexts_disposed_ = 0;
5333 } 5332 }
5334 // Make sure that we have no pending context disposals. 5333 // Make sure that we have no pending context disposals.
5335 // Take into account that we might have decided to delay full collection 5334 // Take into account that we might have decided to delay full collection
5336 // because incremental marking is in progress. 5335 // because incremental marking is in progress.
5337 ASSERT((contexts_disposed_ == 0) || !incremental_marking()->IsStopped()); 5336 ASSERT((contexts_disposed_ == 0) || !incremental_marking()->IsStopped());
5338 // After context disposal there is likely a lot of garbage remaining, reset 5337 // After context disposal there is likely a lot of garbage remaining, reset
5339 // the idle notification counters in order to trigger more incremental GCs 5338 // the idle notification counters in order to trigger more incremental GCs
5340 // on subsequent idle notifications. 5339 // on subsequent idle notifications.
5341 StartIdleRound(); 5340 StartIdleRound();
5342 return false; 5341 return false;
5343 } 5342 }
5344 5343
5345 if (!FLAG_incremental_marking || FLAG_expose_gc || Serializer::enabled()) { 5344 if (!FLAG_incremental_marking || Serializer::enabled()) {
5346 return IdleGlobalGC(); 5345 return IdleGlobalGC();
5347 } 5346 }
5348 5347
5349 // By doing small chunks of GC work in each IdleNotification, 5348 // By doing small chunks of GC work in each IdleNotification,
5350 // perform a round of incremental GCs and after that wait until 5349 // perform a round of incremental GCs and after that wait until
5351 // the mutator creates enough garbage to justify a new round. 5350 // the mutator creates enough garbage to justify a new round.
5352 // An incremental GC progresses as follows: 5351 // An incremental GC progresses as follows:
5353 // 1. many incremental marking steps, 5352 // 1. many incremental marking steps,
5354 // 2. one old space mark-sweep-compact, 5353 // 2. one old space mark-sweep-compact,
5355 // 3. many lazy sweep steps. 5354 // 3. many lazy sweep steps.
(...skipping 2149 matching lines...) Expand 10 before | Expand all | Expand 10 after
7505 static_cast<int>(object_sizes_last_time_[index])); 7504 static_cast<int>(object_sizes_last_time_[index]));
7506 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(ADJUST_LAST_TIME_OBJECT_COUNT) 7505 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(ADJUST_LAST_TIME_OBJECT_COUNT)
7507 #undef ADJUST_LAST_TIME_OBJECT_COUNT 7506 #undef ADJUST_LAST_TIME_OBJECT_COUNT
7508 7507
7509 memcpy(object_counts_last_time_, object_counts_, sizeof(object_counts_)); 7508 memcpy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
7510 memcpy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_)); 7509 memcpy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
7511 ClearObjectStats(); 7510 ClearObjectStats();
7512 } 7511 }
7513 7512
7514 } } // namespace v8::internal 7513 } } // namespace v8::internal
OLDNEW
« no previous file with comments | « src/extensions/gc-extension.cc ('k') | src/incremental-marking.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698