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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#c10">Comment # 10</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>There isn't enough work to submit pairs of batches - we spend, between synmark,
mesa and the driver, longer to create the batch for execution than it takes the
GPU to execute it. This test really does focus on submission overhead. I think
I have it mostly down to the noise now, or at least down to the level where
even I won't whinge too much. (There is definitely room for improvement wrt to
the hardware responding to ELSP so hopefully it will be less of an issue in
future gen.)</pre>
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