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Time isolate initialization.

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This mirrors the way we time context initialization.

R=jgruber@chromium.org

Change-Id: I1bddc73726ef86e5863012c292e7b4c39dfd076f
Reviewed-on: https://chromium-review.googlesource.com/968241
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52009}
This commit is contained in:
Yang Guo 2018-03-19 09:30:17 +01:00 committed by Commit Bot
parent ed2605f040
commit 66fc0b2fea
1 changed files with 8 additions and 0 deletions
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8
src/isolate.cc
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@ -2885,6 +2885,9 @@ void Isolate::PrepareEmbeddedBlobForSerialization() {
bool Isolate::Init(StartupDeserializer* des) {
TRACE_ISOLATE(init);
base::ElapsedTimer timer;
if (des == nullptr && FLAG_profile_deserialization) timer.Start();
time_millis_at_init_ = heap_.MonotonicallyIncreasingTimeInMs();
stress_deopt_count_ = FLAG_deopt_every_n_times;
@ -3101,6 +3104,11 @@ bool Isolate::Init(StartupDeserializer* des) {
sampling_flags);
}
if (des == nullptr && FLAG_profile_deserialization) {
double ms = timer.Elapsed().InMillisecondsF();
PrintF("[Initializing isolate from scratch took %0.3f ms]\n", ms);
}
return true;
}