[Webkit-unassigned] [Bug 147545] New: Lightweight locks should be adaptive

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Aug 2 14:04:52 PDT 2015


            Bug ID: 147545
           Summary: Lightweight locks should be adaptive
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

Current WebKit uses a lot of spinlocks because they are cheap - they occupy little memory and they are inexpensive to acquire.  But they don't adapt to contention - instead they just spin.  We should make them adaptive.

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