[Bug 77712] New: SNA performance regression from 3.13.7 to 3.14 kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77712

          Priority: medium
            Bug ID: 77712
          Assignee: chris at chris-wilson.co.uk
           Summary: SNA performance regression from 3.13.7 to 3.14 kernel
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: absorbb at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

Created attachment 97665
  --> https://bugs.freedesktop.org/attachment.cgi?id=97665&action=edit
logs

Kernel is only changed component between tests.
Gtkperf results droped from 1.16 sec to 1.83.

I've attached dmesg, Xorg, and gtkperf log - so you can see which tests
regressed more.
http://ie.microsoft.com/testdrive/Performance/ParticleAcceleration/ test in
Mozilla Nightly also regressed noticeably. but don't remember exact number.

I don't have any 3d benchmark suites. But brief look at World of Warcraft
(direct3d over wine) 3d performance didn't show much difference.

All test was done with 08e71e1820d6fcb6829b4ebd360beadc1f250295 git revision.

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