[Webkit-unassigned] [Bug 43256] New: Avoid timing IO in SunSpider

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=43256

           Summary: Avoid timing IO in SunSpider
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: pbiggar at mozilla.com


In the standalone shell version of Sunspider, the timer is started, then load() is called on the script, and finally the timer is stopped. load() reads the file from disk, and the IO effect of this leads to a 35% increase in variance (see https://bugzilla.mozilla.org/show_bug.cgi?id=580532#c24).

The simplest solution is to read the file into a string, then start the timer, eval the string, and stop the timer. I'm told most JS engines have a read() builtin function for this (though on Firefox it is called snarf() for some reason).

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