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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - 3% perf drop in GfxBench Manhattan 3.0, 3.1 and CarChase test-cases"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111090#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - 3% perf drop in GfxBench Manhattan 3.0, 3.1 and CarChase test-cases"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111090">bug 111090</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>e8f06c34fa: median of 30 manhattan runs, 1327.5289306640625 (score)
8991a80f85: median of 30 manhattan runs, 1327.635986328125
using ezbench, gfxbench3, bxt J3455, 1920x1080 fullscreen, bare Xorg
perf doesn't suggest any contention in the kernel, and does not appear to be
ratelimited by i915.ko submission overhead, i.e. if it was the locking changes
I expected that to be reflected in the perf profile of i915.ko. Hmm.
The system does have a pair of dimm, and so I hope dual-channel!</pre>
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