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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #48 from wendy.wang at intel.com ---
(In reply to Chris Wilson from comment #47)
> (In reply to wendy.wang from comment #46)
> > 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
> 
> The open question was whether the regression remains after 
> commit 8d3afd7d0e666b932e6fa15901e6280fe829a786
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Thu May 21 21:01:47 2015 +0100
> 
>     drm/i915: Use spinlocks for checking when to waitboost
After commit 8d3afd7d0e666b932e6fa15901e6280fe829a786, the failed cases FPS did
not recovered previous good performance, still have -12% gap vs. good fps.
test on BSW with CS game.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150824/92627b85/attachment.html>