[Webkit-unassigned] [Bug 146448] JavaScriptCore performance is very bad on Windows

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=146448

--- Comment #35 from peavo at outlook.com ---
Created attachment 256968
  --> https://bugs.webkit.org/attachment.cgi?id=256968&action=review
Screenshot of profiling.

This attachment shows a summary of the profiling of the sprite benchmark with Visual Studio. The _Thrd_current function is called by std::this_thread::get_id(), which is called via JSLock::lock(). The VirtualQuery function is called via VM::updateStackLimit. These are the two issues addressed in this patch.

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