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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-13 21:26:21 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-16 20:44:19 +0100 |
| commit | cc731f5a3b1f592d8aef04c9de720c6bc09b209a (patch) | |
| tree | 6835f462c34320565e20ec07c629b028e2d89357 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | drm/i915: Only free the oldest stale object before a fresh allocation (diff) | |
| download | linux-dev-cc731f5a3b1f592d8aef04c9de720c6bc09b209a.tar.xz linux-dev-cc731f5a3b1f592d8aef04c9de720c6bc09b209a.zip | |
drm/i915: Trim struct_mutex hold duration for i915_gem_free_objects
We free objects in bulk after they wait for their RCU grace period.
Currently, we take struct_mutex and unbind all the objects. This can lead
to a long lock duration during which time those objects have their pages
unfreeable (i.e. the shrinker is prevented from reaping those pages). If
we only process a single object under the struct_mutex and then free the
pages, the number of objects locked away from the shrinker is minimal
and we allow regular clients better access to struct_mutex if they need
it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171013202621.7276-9-chris@chris-wilson.co.uk
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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