[Bug 53261] New: [i915g] Performance regression in git

https://bugs.freedesktop.org/show_bug.cgi?id=53261

             Bug #: 53261
           Summary: [i915g] Performance regression in git
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/i915g
        AssignedTo: dri-devel <at> lists.freedesktop.org
        ReportedBy: jano.vesely <at> gmail.com

I tested OpenArena demo088-test1.dm_71. and the pramerate dropped from 17 to 6
fps. I have seen similar drop(more than 50%) in anholt.dm_68 too.
mesa-8.0.4 runs fine.

I think this might be related to
https://bugs.freedesktop.org/show_bug.cgi?id=52405.

I can theoretically bisect, but it is an Intel Atom machine so it will take
some time.

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