[Webkit-unassigned] [Bug 79561] [Qt] REGRESSION: 350% regression in DOM/DOMTable and 2 perf tests time out

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79561


Csaba Osztrogonac <ossy at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[Qt]                        |[Qt] REGRESSION: 350%
                   |REGRESSION(r108645-108796): |regression in DOM/DOMTable
                   |250% regression in          |and 2 perf tests time out
                   |DOM/DOMTable                |




--- Comment #5 from Csaba Osztrogonac <ossy at webkit.org>  2012-02-25 07:41:32 PST ---
I checked it, this regression isn't come from WebKit trunk, but Qt5 update.

- first buildable/working WebKit revision with newer Qt5: http://trac.webkit.org/changeset/108789
- last buildable/working WebKit revision with older Qt5: http://trac.webkit.org/changeset/108785

I checked this two revision, and with newer Qt5:
- Dromaeo/jslib-modify-jquery.html fails with timeout (It makes the perf bot red)
- Parser/html5-full-render.html fails with timeout (It makes the perf bot red)
- DOM/DOMTable.html is ~3.5 times slower
- other test results weren't changed significantly

(( Additionally the previous Qt5 update (not this one, the previous)
made DOM/Accessors.html faster (~800 ms --> ~470 ms) ))

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