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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [BDW Bisected] "bdw: Apply workarounds in render ring init function" reduced performance 10%~40%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83482#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [BDW Bisected] "bdw: Apply workarounds in render ring init function" reduced performance 10%~40%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83482">bug 83482</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>We have also been discussing that the implementation of RPS on BDW is
unreliable for benchmarking. It would also be sensible to fix the frequency
whilst doing perf regression tests to rule out RPS fluctuations:
cat /sys/class/drm/card0/gt_max_freq_mhz >
/sys/class/drm/card0/gt_min_freq_mhz</pre>
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