AuroraMiddleware/v8
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Preallocate sample buffer to avoid resizes

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Review URL: https://codereview.chromium.org/1712893002

Cr-Commit-Position: refs/heads/master@{#34161}
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mattloring 2016-02-19 07:57:41 -08:00 committed by Commit bot
parent 4f0be51987
commit 6997220817
1 changed files with 1 additions and 0 deletions
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src/profiler/sampling-heap-profiler.cc
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@ -182,6 +182,7 @@ v8::AllocationProfile::Node* SamplingHeapProfiler::TranslateAllocationNode(
int line = v8::AllocationProfile::kNoLineNumberInfo;
int column = v8::AllocationProfile::kNoColumnNumberInfo;
std::vector<v8::AllocationProfile::Allocation> allocations;
allocations.reserve(node->allocations_.size());
if (node->script_id_ != v8::UnboundScript::kNoScriptId) {
// Cannot use std::map<T>::at because it is not available on android.
auto non_const_scripts = const_cast<std::map<int, Script*>&>(scripts);