[Webkit-unassigned] [Bug 117554] New: Massive performance problem with typed array constructors

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jun 12 11:42:02 PDT 2013


https://bugs.webkit.org/show_bug.cgi?id=117554

           Summary: Massive performance problem with typed array
                    constructors
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Mac OS X 10.8
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: evan.exe at gmail.com


The attached page uses binary search to find the maximum size that the Uint8Array constructor accepts. In Firefox and Chrome the test completes in 4 seconds but with both Safari and WebKit Nightly the test takes 15 minutes and eats up 40gb of virtual memory. This is on a MacBook Air with 4gb of memory.

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