[RFC][PATCH] Userptr benchmark

[Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

A simple userptr benchmark measuring creation and destruction of userptr
surfaces and also impact of having a different number of them in the
process address space.

Example test output from i7-4550U running Android is below.

Questions, comments and ideas are welcome.

IGT-Version: 1.5-NOT-GIT (android-ia) (Linux: 3.10.20-g667dce8-dirty x86_64)
create-destroy                =   258270 op/s
multi-create-destroy          =     2803 op/s
multi-create-destroy-random   =     2777 op/s
Subtest userptr-unsync: SUCCESS
malloc-free,                    0 bos =     7463 op/s
malloc-free-random              0 bos =     5911 op/s
malloc-realloc-free,            0 bos =     2427 op/s
malloc-realloc-free-random,     0 bos =      669 op/s
mmap-unmap,                     0 bos =      636 op/s
mmap-unmap-random,              0 bos =      561 op/s
malloc-free,                    1 bos =     7462 op/s
malloc-free-random              1 bos =     5915 op/s
malloc-realloc-free,            1 bos =     2444 op/s
malloc-realloc-free-random,     1 bos =      669 op/s
mmap-unmap,                     1 bos =      594 op/s
mmap-unmap-random,              1 bos =      531 op/s
malloc-free,                   10 bos =     7464 op/s
malloc-free-random             10 bos =     5915 op/s
malloc-realloc-free,           10 bos =     2444 op/s
malloc-realloc-free-random,    10 bos =      669 op/s
mmap-unmap,                    10 bos =      606 op/s
mmap-unmap-random,             10 bos =      542 op/s
malloc-free,                  100 bos =     7462 op/s
malloc-free-random            100 bos =     5913 op/s
malloc-realloc-free,          100 bos =     2444 op/s
malloc-realloc-free-random,   100 bos =      669 op/s
mmap-unmap,                   100 bos =      613 op/s
mmap-unmap-random,            100 bos =      546 op/s
malloc-free,                 1000 bos =     7437 op/s
malloc-free-random           1000 bos =     5908 op/s
malloc-realloc-free,         1000 bos =     2442 op/s
malloc-realloc-free-random,  1000 bos =      669 op/s
mmap-unmap,                  1000 bos =      600 op/s
mmap-unmap-random,           1000 bos =      535 op/s
Subtest userptr-impact-unsync: SUCCESS
create-destroy                =    67453 op/s
multi-create-destroy          =     1837 op/s
multi-create-destroy-random   =     1817 op/s
Subtest userptr-sync: SUCCESS
malloc-free,                    0 bos =     7362 op/s
malloc-free-random              0 bos =     5913 op/s
malloc-realloc-free,            0 bos =     2444 op/s
malloc-realloc-free-random,     0 bos =      670 op/s
mmap-unmap,                     0 bos =      512 op/s
mmap-unmap-random,              0 bos =      465 op/s
malloc-free,                    1 bos =     7463 op/s
malloc-free-random              1 bos =     5913 op/s
malloc-realloc-free,            1 bos =     2445 op/s
malloc-realloc-free-random,     1 bos =      669 op/s
mmap-unmap,                     1 bos =      447 op/s
mmap-unmap-random,              1 bos =      403 op/s
malloc-free,                   10 bos =     7455 op/s
malloc-free-random             10 bos =     5911 op/s
malloc-realloc-free,           10 bos =     2444 op/s
malloc-realloc-free-random,    10 bos =      669 op/s
mmap-unmap,                    10 bos =      452 op/s
mmap-unmap-random,             10 bos =      414 op/s
malloc-free,                  100 bos =     7462 op/s
malloc-free-random            100 bos =     5915 op/s
malloc-realloc-free,          100 bos =     2442 op/s
malloc-realloc-free-random,   100 bos =      668 op/s
mmap-unmap,                   100 bos =      453 op/s
mmap-unmap-random,            100 bos =      416 op/s
malloc-free,                 1000 bos =     7462 op/s
malloc-free-random           1000 bos =     5907 op/s
malloc-realloc-free,         1000 bos =     2441 op/s
malloc-realloc-free-random,  1000 bos =      667 op/s
mmap-unmap,                  1000 bos =      436 op/s
mmap-unmap-random,           1000 bos =      400 op/s
Subtest userptr-impact-sync: SUCCESS


Tvrtko Ursulin (1):
  tests/gem_userptr_benchmark: Benchmarking userptr surfaces and impact

 tests/.gitignore              |   1 +
 tests/Makefile.sources        |   1 +
 tests/gem_userptr_benchmark.c | 451 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 453 insertions(+)
 create mode 100644 tests/gem_userptr_benchmark.c

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1.8.4.3