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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [GEN8+] up to 10% perf drop on several 3D benchmarks"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107510#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [GEN8+] up to 10% perf drop on several 3D benchmarks"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107510">bug 107510</a>
from <span class="vcard"><a class="email" href="mailto:mark.a.janes@intel.com" title="Mark Janes <mark.a.janes@intel.com>"> <span class="fn">Mark Janes</span></a>
</span></b>
<pre>more precise bisection:
4434591bf56a6b0c193ef209ea9d7b9e3c95a522
Author: Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>>
AuthorDate: Tue Jul 31 06:16:34 2018 -0700
Commit: Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>>
CommitDate: Wed Aug 1 18:02:28 2018 -0700
Parent: b0bb547f782 intel/nir: Split IO arrays into elements
Containing: master perf
Follows: 18.1-branchpoint (2138)
Precedes: mesa-18.2.0-rc1 (15)
intel/nir: Call nir_lower_io_to_scalar_early
Shader-db results on Kaby Lake:
total instructions in shared programs: 15166953 -> 15073611 (-0.62%)
instructions in affected programs: 2390284 -> 2296942 (-3.91%)
helped: 16469
HURT: 505
total loops in shared programs: 4954 -> 4951 (-0.06%)
loops in affected programs: 3 -> 0
helped: 3
HURT: 0
Reviewed-by: Timothy Arceri <<a href="mailto:tarceri@itsqueeze.com">tarceri@itsqueeze.com</a>>
Reviewed-by: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>></pre>
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