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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/heap/mark-compact.h" | 5 #include "src/heap/mark-compact.h" |
6 | 6 |
7 #include "src/base/atomicops.h" | 7 #include "src/base/atomicops.h" |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/base/sys-info.h" | 9 #include "src/base/sys-info.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
11 #include "src/compilation-cache.h" | 11 #include "src/compilation-cache.h" |
12 #include "src/deoptimizer.h" | 12 #include "src/deoptimizer.h" |
13 #include "src/execution.h" | 13 #include "src/execution.h" |
14 #include "src/frames-inl.h" | 14 #include "src/frames-inl.h" |
15 #include "src/gdb-jit.h" | 15 #include "src/gdb-jit.h" |
16 #include "src/global-handles.h" | 16 #include "src/global-handles.h" |
17 #include "src/heap/array-buffer-tracker.h" | 17 #include "src/heap/array-buffer-tracker.h" |
18 #include "src/heap/gc-tracer.h" | 18 #include "src/heap/gc-tracer.h" |
19 #include "src/heap/incremental-marking.h" | 19 #include "src/heap/incremental-marking.h" |
20 #include "src/heap/mark-compact-inl.h" | 20 #include "src/heap/mark-compact-inl.h" |
21 #include "src/heap/object-stats.h" | 21 #include "src/heap/object-stats.h" |
22 #include "src/heap/objects-visiting-inl.h" | 22 #include "src/heap/objects-visiting-inl.h" |
23 #include "src/heap/objects-visiting.h" | 23 #include "src/heap/objects-visiting.h" |
24 #include "src/heap/page-parallel-job.h" | 24 #include "src/heap/page-parallel-job.h" |
25 #include "src/heap/spaces-inl.h" | 25 #include "src/heap/spaces-inl.h" |
26 #include "src/ic/ic.h" | 26 #include "src/ic/ic.h" |
27 #include "src/ic/stub-cache.h" | 27 #include "src/ic/stub-cache.h" |
| 28 #include "src/tracing/tracing-category-observer.h" |
28 #include "src/utils-inl.h" | 29 #include "src/utils-inl.h" |
29 #include "src/v8.h" | 30 #include "src/v8.h" |
30 | 31 |
31 namespace v8 { | 32 namespace v8 { |
32 namespace internal { | 33 namespace internal { |
33 | 34 |
34 | 35 |
35 const char* Marking::kWhiteBitPattern = "00"; | 36 const char* Marking::kWhiteBitPattern = "00"; |
36 const char* Marking::kBlackBitPattern = "11"; | 37 const char* Marking::kBlackBitPattern = "11"; |
37 const char* Marking::kGreyBitPattern = "10"; | 38 const char* Marking::kGreyBitPattern = "10"; |
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2229 while (space_it.has_next()) { | 2230 while (space_it.has_next()) { |
2230 std::unique_ptr<ObjectIterator> it(space_it.next()->GetObjectIterator()); | 2231 std::unique_ptr<ObjectIterator> it(space_it.next()->GetObjectIterator()); |
2231 ObjectIterator* obj_it = it.get(); | 2232 ObjectIterator* obj_it = it.get(); |
2232 while ((obj = obj_it->Next()) != nullptr) { | 2233 while ((obj = obj_it->Next()) != nullptr) { |
2233 visitor->Visit(obj); | 2234 visitor->Visit(obj); |
2234 } | 2235 } |
2235 } | 2236 } |
2236 } | 2237 } |
2237 | 2238 |
2238 void MarkCompactCollector::RecordObjectStats() { | 2239 void MarkCompactCollector::RecordObjectStats() { |
2239 if (FLAG_track_gc_object_stats) { | 2240 if (V8_UNLIKELY(FLAG_gc_stats)) { |
| 2241 heap()->CreateObjectStats(); |
2240 ObjectStatsVisitor visitor(heap(), heap()->live_object_stats_, | 2242 ObjectStatsVisitor visitor(heap(), heap()->live_object_stats_, |
2241 heap()->dead_object_stats_); | 2243 heap()->dead_object_stats_); |
2242 VisitAllObjects(&visitor); | 2244 VisitAllObjects(&visitor); |
2243 std::stringstream live, dead; | 2245 if (V8_UNLIKELY(FLAG_gc_stats & |
2244 heap()->live_object_stats_->Dump(live); | 2246 v8::tracing::TracingCategoryObserver::ENABLED_BY_TRACING)) { |
2245 heap()->dead_object_stats_->Dump(dead); | 2247 std::stringstream live, dead; |
2246 TRACE_EVENT_INSTANT2(TRACE_DISABLED_BY_DEFAULT("v8.gc_stats"), | 2248 heap()->live_object_stats_->Dump(live); |
2247 "V8.GC_Objects_Stats", TRACE_EVENT_SCOPE_THREAD, | 2249 heap()->dead_object_stats_->Dump(dead); |
2248 "live", TRACE_STR_COPY(live.str().c_str()), "dead", | 2250 TRACE_EVENT_INSTANT2(TRACE_DISABLED_BY_DEFAULT("v8.gc_stats"), |
2249 TRACE_STR_COPY(dead.str().c_str())); | 2251 "V8.GC_Objects_Stats", TRACE_EVENT_SCOPE_THREAD, |
| 2252 "live", TRACE_STR_COPY(live.str().c_str()), "dead", |
| 2253 TRACE_STR_COPY(dead.str().c_str())); |
| 2254 } |
2250 if (FLAG_trace_gc_object_stats) { | 2255 if (FLAG_trace_gc_object_stats) { |
2251 heap()->live_object_stats_->PrintJSON("live"); | 2256 heap()->live_object_stats_->PrintJSON("live"); |
2252 heap()->dead_object_stats_->PrintJSON("dead"); | 2257 heap()->dead_object_stats_->PrintJSON("dead"); |
2253 } | 2258 } |
2254 heap()->live_object_stats_->CheckpointObjectStats(); | 2259 heap()->live_object_stats_->CheckpointObjectStats(); |
2255 heap()->dead_object_stats_->ClearObjectStats(); | 2260 heap()->dead_object_stats_->ClearObjectStats(); |
2256 } | 2261 } |
2257 } | 2262 } |
2258 | 2263 |
2259 void MarkCompactCollector::MarkLiveObjects() { | 2264 void MarkCompactCollector::MarkLiveObjects() { |
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3917 // The target is always in old space, we don't have to record the slot in | 3922 // The target is always in old space, we don't have to record the slot in |
3918 // the old-to-new remembered set. | 3923 // the old-to-new remembered set. |
3919 DCHECK(!heap()->InNewSpace(target)); | 3924 DCHECK(!heap()->InNewSpace(target)); |
3920 RecordRelocSlot(host, &rinfo, target); | 3925 RecordRelocSlot(host, &rinfo, target); |
3921 } | 3926 } |
3922 } | 3927 } |
3923 } | 3928 } |
3924 | 3929 |
3925 } // namespace internal | 3930 } // namespace internal |
3926 } // namespace v8 | 3931 } // namespace v8 |
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