ntel-gpu-tools

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History

Tvrtko Ursulin 85ee6e7b36 gem_userptr_benchmark: Test overlapping bo mmu notifier performance impact

Current userptr kernel implementation downgrades tracking VMA ranges (real
userspace ones) to an inefficient linear walk for any process which has
instantiated overlapping userptr objects.

This adds a test which shows the performance cliff on, most visibly, generic
userspace mmap(2) and munmap(2) operations between unsync, non-overlapping
and overlapping userptr objects.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Thomas Daniel <thomas.daniel@intel.com>

2015-06-02 13:51:41 +01:00

.gitignore

tests/gem_userptr_benchmark: Benchmarking userptr surfaces and impact

2014-04-25 17:48:49 +02:00

Android.mk

Android.mk: replace std=c99 with std=gnu99

2014-12-12 12:18:22 +00:00

gem_userptr_benchmark.c

gem_userptr_benchmark: Test overlapping bo mmu notifier performance impact

2015-06-02 13:51:41 +01:00

intel_upload_blit_large_gtt.c

batch: Specify number of relocations to accommodate