[Webkit-unassigned] [Bug 35843] New: Performance Regression: SunSpider base64 test 20x slower starting in build 55043

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=35843

           Summary: Performance Regression: SunSpider base64 test 20x
                    slower starting in build 55043
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://www2.webkit.org/perf/sunspider-0.9/sunspider-re
                    sults.html
        OS/Version: Mac OS X 10.6
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: maccinema at yahoo.com


The SunSpider base64 subtest is running 20x slower since build 55043 (Feb 19)
using Safari.

    base64:            *20.1x as slow*    16.0ms +/- 16.5%   320.8ms +/- 6.3%  
  significant

Oddly, this is the only test that was slower!?!

I first noticed this when I compared a recent nightly build with the most
recent Apple version installed on my Mac 10.6.2.
Also, it appears that build 55027 (also Feb 19) was the last build that
performs base64 well.

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