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[heap] Add scope to object stats dumping in full GC

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This accounts for a big difference between the total length of the
atomic pause (v8:gc:cycle:main_thread:full:atomic) and the sum of
the four phases, when GC stats are enabled.

Change-Id: I5d5abd1e6a8d28ae45a04739d2ca937ef54148af
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4217418
Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85618}
This commit is contained in:
Nikolaos Papaspyrou 2023-02-02 13:02:38 +01:00 committed by V8 LUCI CQ
parent 96f5bb7be4
commit 9b89942446
1 changed files with 1 additions and 0 deletions
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src/heap/mark-compact.cc
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@ -2706,6 +2706,7 @@ void MarkCompactCollector::RecordObjectStats() {
if (V8_LIKELY(!TracingFlags::is_gc_stats_enabled())) return;
// Cannot run during bootstrapping due to incomplete objects.
if (isolate()->bootstrapper()->IsActive()) return;
TRACE_EVENT0(TRACE_GC_CATEGORIES, "V8.GC_OBJECT_DUMP_STATISTICS");
heap()->CreateObjectStats();
ObjectStatsCollector collector(heap(), heap()->live_object_stats_.get(),
heap()->dead_object_stats_.get());