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Add adjust_os_scheduling_parameters flag for v8 isolate

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This will allow the test infrastructure to bypass isolate scheduling
restrictions.


Bug: chromium:1002582
Change-Id: Ib22a599cf6c826c3d412898520dba6f4045175b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1801995
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Fernando Serboncini <fserb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63811}
This commit is contained in:
Fernando Serboncini 2019-09-16 10:49:26 -04:00 committed by Commit Bot
parent 0aac347e12
commit 0999cfb4e8
2 changed files with 5 additions and 1 deletions
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4
src/execution/isolate.cc
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@ -320,7 +320,9 @@ Isolate::FindOrAllocatePerThreadDataForThisThread() {
base::MutexGuard lock_guard(&thread_data_table_mutex_);
per_thread = thread_data_table_.Lookup(thread_id);
if (per_thread == nullptr) {
base::OS::AdjustSchedulingParams();
if (FLAG_adjust_os_scheduling_parameters) {
base::OS::AdjustSchedulingParams();
}
per_thread = new PerIsolateThreadData(this, thread_id);
thread_data_table_.Insert(per_thread);
}

2
src/flags/flag-definitions.h
View File

@ -1238,6 +1238,8 @@ DEFINE_BOOL(print_all_exceptions, false,
DEFINE_BOOL(
detailed_error_stack_trace, false,
"includes arguments for each function call in the error stack frames array")
DEFINE_BOOL(adjust_os_scheduling_parameters, true,
"adjust OS specific scheduling params for the isolate")
// runtime.cc
DEFINE_BOOL(runtime_call_stats, false, "report runtime call counts and times")