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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BDW Bisected] OglBatch7 performance reduced by ~7% after enable execlists"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87725#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [BDW Bisected] OglBatch7 performance reduced by ~7% after enable execlists"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87725">bug 87725</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>To put the difference into perspective, a couple of microbenchmarks (bdw
i7-5557u):
ring execlists
exec continuous nops on all rings: 1.491us 2.223us
exec sequential nops on each ring: 12.508us 53.682us
single nop + sync: 9.272us 30.291us
vblank_mode=0 glxgears: ~11000fps ~9000fps</pre>
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