[Bug 111090] 3% perf drop in GfxBench Manhattan 3.0, 3.1 and CarChase test-cases
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri Oct 4 20:09:49 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=111090
Chris Wilson <chris at chris-wilson.co.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |WORKSFORME
Status|NEW |RESOLVED
--- Comment #19 from Chris Wilson <chris at chris-wilson.co.uk> ---
The final improvement we are likely to make for the time being is
commit 2850748ef8763ab46958e43a4d1c445f29eeb37d
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Fri Oct 4 14:39:58 2019 +0100
drm/i915: Pull i915_vma_pin under the vm->mutex
which removes the global struct_mutex from inside the shrinker -- so this pair
of benchmarks that appeared to be kicking kswapd should be hitting the mutex
far less often and so removing contention from the gfx workload.
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