[Webkit-unassigned] [Bug 122628] New: Dromaeo/DOM drop

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=122628

           Summary: Dromaeo/DOM drop
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore JavaScript
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: xinchao.peng at samsung.com


I find a huge issue about performance . The Dromaeo/DOM score of newest version is much lower than last year's version.
I get code of webkit-r157034 and webkit-r124698. At x86_64 GTK platform ,
Score of Dromaeo/DOM 

                                      webkit-r124698                       webkit-r157034   

 total                                 2399.19run/s                        1665.38run/s                                                      

 DOM Attributes:                       828.93run/s                         706.24run/s

 DOM modification:                     562.80run/s                         420.22run/s

 DOM Query:                            23374.66run/s                       11025.61run/s                                                  

 DOM Traversal:                        812.73run/s                         810.28run/s

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