[Webkit-unassigned] [Bug 120047] New: Relatively slow performance on emscripten-compiled memops benchmark

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=120047

           Summary: Relatively slow performance on emscripten-compiled
                    memops benchmark
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: alonzakai at gmail.com


Created an attachment (id=209146)
 --> (https://bugs.webkit.org/attachment.cgi?id=209146&action=review)
memops benchmark

Attached is the "memops" benchmark from emscripten. The numbers on my 64-bit linux machine are

jsc  5.532 seconds
sm   1.551
v8   1.488

It is possible to run the benchmark for a longer time period if that is useful, by giving it an argument of 4 or 5 (-- 4 for jsc or v8, just 4 for sm). The results are overall similar.

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