[Webkit-unassigned] [Bug 16596] New: ThreadSafeShared should be lock-free where possible

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=16596

           Summary: ThreadSafeShared should be lock-free where possible
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mrowe at apple.com


Using Mutex around refcounting operations is very heavy-weight and incredibly
slow when there is contention.  It should use atomic increment and
decrement-and-test on platforms that support it to improve performance.


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