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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#c15">Comment # 15</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>(In reply to Eero Tamminen from <a href="show_bug.cgi?id=111090#c14">comment #14</a>)
<span class="quote">> Between following drm-tip kernel commits:
> 8bb86058e9 at 2019-08-09 15:06:19: 2019y-08m-09d-15h-05m-28s UTC integration
> manifest
> cfacb6e14c at 2019-08-10 14:01:32: 2019y-08m-10d-14h-00m-41s UTC integration
> manifest
>
> There were following perf changes on SKL GT2 & KBL GT3e:
> * SynMark VSTangent improved by 10%
> * GLB 2.7 Egypt improved by 1-2%
> * GLB 2.7 T-Rex improved by < 1%
> * SynMark ZBuffer decreased by 5% KBL GT3e and 3% on SKL GT2 (*)</span >
Principal change there:
drm/i915/gtt: enable GTT cache by default
drm/i915/gtt: disable 2M pages for pre-gen11
Other noteworthy (but unlikely to impact):
dma-buf: make dma_fence structure a bit smaller v2
dma-buf: add reservation_object_fences helper
drm/i915: use new reservation_object_fences helper
dma-buf: further relax reservation_object_add_shared_fence</pre>
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