[Bug 90112] [BSW bisected] OglGSCloth/Lightsmark/CS/ Portal/ Half Life 2 games performance decreased by 15%-45%

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Aug 14 01:34:19 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=90112

wendy.wang at intel.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #46 from wendy.wang at intel.com ---
Add intel_pstate=disable parameter does not fix this bug on BSW
test with cs game,
(bad- parent) vs. parent commit: -33%

Bad next-queued kernel commit:
1854d5ca0dd7a9fc11243ff220a3e93fce2b4d3e
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Apr 7 16:20:32 2015 +0100

    drm/i915: Deminish contribution of wait-boosting from clients


parent next-queued kernel commit of 1854d5ca0
commit 6ad790c0f5ac55fd13f322c23519f0d6f0721864
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Apr 7 16:20:31 2015 +0100

drm/i915: Boost GPU frequency if we detect outstanding pageflips

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