[Bug 110852] [GEN8] 2% perf drop in Unigine Heaven

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110852

            Bug ID: 110852
           Summary: [GEN8] 2% perf drop in Unigine Heaven
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: eero.t.tamminen at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Setup:
* Ubuntu 18.04
* Unity / compiz desktop
* X server git version with modifiers enabled
* drm-tip kernel v5.0
* Mesa git version

Between following Mesa commits:
* 2019-04-18 16:43:08 db5b372bb9: anv: implement WaEnableStateCacheRedirectToCS
* 2019-04-19 16:17:37 bcb81b4d48: gallium/auxiliary/vl: Fix a couple of
warnings

Unigine Heaven 4.0 performance regressed by 2% on (12EU) BSW and BDW GT2.

On GEN9 there was no change, on HSW GT2 Heaven perf increased by 1%.

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