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| author | Frank Barchard <fbarchard@google.com> | 2015-09-22 15:47:36 -0700 |
|---|---|---|
| committer | Frank Barchard <fbarchard@google.com> | 2015-09-22 15:47:36 -0700 |
| commit | 16f12b58cc8f04b4810b7af31a4009160dd724c0 (patch) | |
| tree | 47b9de6ace9b76af1992912a2719cddef524080c /unit_test/unit_test.cc | |
| parent | 2b92ec8d0f9fe8c34d0e857b86b4a0e567e99233 (diff) | |
| download | libyuv-16f12b58cc8f04b4810b7af31a4009160dd724c0.tar.gz | |
Replace random with fastrand
random / rand is slow and impacts performance testing.
Although its only called to clear a frame once, a typical profile shows
it high in the overall profile, when doing 1000 frames for a benchmark.
95.10% libyuv_unittest libyuv_unittest [.] YUY2ToARGBRow_SSSE3
2.01% libyuv_unittest libc-2.19.so [.] __random_r
1.13% libyuv_unittest libc-2.19.so [.] __random
Replace random is a faster version for unittests.
set LIBYUV_WIDTH=1280
set LIBYUV_HEIGHT=720
set LIBYUV_REPEAT=999
set LIBYUV_FLAGS=-1
out\release\libyuv_unittest --gtest_filter=*YUY2ToARGB* | findms
Was
libyuvTest.YUY2ToARGB_Opt (497 ms)
Now
libyuvTest.YUY2ToARGB_Opt (454 ms)
R=harryjin@google.com
BUG=none
Review URL: https://codereview.chromium.org/1361813002 .
Diffstat (limited to 'unit_test/unit_test.cc')
| -rw-r--r-- | unit_test/unit_test.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/unit_test/unit_test.cc b/unit_test/unit_test.cc index c848e4c0..4be15536 100644 --- a/unit_test/unit_test.cc +++ b/unit_test/unit_test.cc @@ -18,6 +18,8 @@ // TODO(fbarchard): Add command line parsing to pass this as option. #define BENCHMARK_ITERATIONS 1 +int fastrand_seed = 0xfb; + libyuvTest::libyuvTest() : rotate_max_w_(128), rotate_max_h_(128), benchmark_iterations_(BENCHMARK_ITERATIONS), benchmark_width_(128), benchmark_height_(72), disable_cpu_flags_(0) { |