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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Performance regressions in Mesa 19.0.0-rc2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109582#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Performance regressions in Mesa 19.0.0-rc2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109582">bug 109582</a>
from <span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span></b>
<pre>(In reply to LunarG from <a href="show_bug.cgi?id=109582#c2">comment #2</a>)
<span class="quote">> I tried reverting but I'm still seeing the drop in performance for the
> Sascha Willems demos.
>
> But the drop on the dota2 trace was fixed.</span >
If you have older machines than Skylake, e.g. Broadwell one, do you see the
compute tests drop also on them?
If not, it could be GEN9+ specific like the couple of other perf drops in
19.0-rc (<a class="bz_bug_link
bz_status_NEW "
title="NEW - [GEN9+] 14-24% perf drop in SynMark2 v7 CSDof"
href="show_bug.cgi?id=109517">bug 109517</a>, <a class="bz_bug_link
bz_status_NEW "
title="NEW - [GEN9+] 2% perf drop in Unigine Heaven, 1% in Valley"
href="show_bug.cgi?id=109505">bug 109505</a>).
(In reply to LunarG from <a href="show_bug.cgi?id=109582#c0">comment #0</a>)
<span class="quote">> See <a href="https://share.lunarg.com/vulkan/report/2957#performance">https://share.lunarg.com/vulkan/report/2957#performance</a> for reference.</span >
Deferred multisampling drop is also <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - 4-27% performance drop in Vulkan benchmarks"
href="show_bug.cgi?id=109216">bug 109216</a>.
Terrain / tessellation drop is most likely <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [GEN8+] up to 10% perf drop on several 3D benchmarks"
href="show_bug.cgi?id=107510">bug 107510</a>.
Btw. The header on the results page is misleading (each data line lists
different baseline version than 19.0.0-rc2):
"Mesa 19.0.0-rc2 Intel Skylake compared to 19.0.0-rc2 Intel Skylake Baseline"
As is the "SW" prefix in the test names for "Sacha Willems" (I first wondered
were the tests for a CPU-renderer). Best would be if test name could be a link
to a test description (vulkan demos commit ID, exact command line with
resolution, whether it's run in fullscreen or windowed etc).</pre>
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