[Webkit-unassigned] [Bug 108762] New: Dromaeo/jslib-event-jquery has 50%+ variance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=108762

           Summary: Dromaeo/jslib-event-jquery has 50%+ variance
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: eric at webkit.org, mjs at apple.com, ggaren at apple.com,
                    barraclough at apple.com, morrita at google.com,
                    fpizlo at apple.com


JSC port results:
http://webkit-perf.appspot.com/graph.html#tests=[[42017,2001,7288486],[42017,2001,32196],[42017,2001,963028],[42017,2001,957069]]&sel=1359274319727,1359879119727&displayrange=7&datatype=running

Chromium port results:
http://webkit-perf.appspot.com/graph.html#tests=[[42017,2001,173262],[42017,2001,3001],[42017,2001,2389050]]&sel=1359274319727,1359879119727&displayrange=7&datatype=running

It appears that JSC has a very high variance in each run whereas v8 has a very large between-run variances. I'm not sure if such a high variance is really expected. Even if it is, this makes the entire Dromaeo test result very untrustworthy.

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