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<body><span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span> changed
<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BSW Bisected] RC6 timeout mode patch causes random GPU freq drops and up to -40% performance regressions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88103">bug 88103</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Priority</td>
<td>high
</td>
<td>highest
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<td style="text-align:right;">Summary</td>
<td>[BSW Bisected]GLES 3DMMES 2.0 taiji performance decreased by ~40%
</td>
<td>[BSW Bisected] RC6 timeout mode patch causes random GPU freq drops and up to -40% performance regressions
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BSW Bisected] RC6 timeout mode patch causes random GPU freq drops and up to -40% performance regressions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88103#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [BSW Bisected] RC6 timeout mode patch causes random GPU freq drops and up to -40% performance regressions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88103">bug 88103</a>
from <span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span></b>
<pre>This seems to cause GPU frequency to fluctuate randomly. Some test-runs go at
full speed, some fluctuate, for test cases that are fully GPU bound.
I've also seen the effect in several other tests (e.g. Unigine Valley and
SynMark Deferred).
This kind of behavior breaks performance testing so *it needs to be reverted*
until GPU freq issue if fixed.</pre>
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