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author | Mark Salyzyn <salyzyn@google.com> | 2017-11-07 13:47:48 -0800 |
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committer | Mark Salyzyn <salyzyn@google.com> | 2017-12-07 09:41:13 -0800 |
commit | 6ffa10f4830f7831453b1051e7b86358a728240f (patch) | |
tree | 231cce187b4d866b5192f7bd9e5d5b9f04695ea4 /benchmarks/time_benchmark.cpp | |
parent | 78b40e8fe1f37de319344c92d8e6e1eb595c1067 (diff) | |
download | bionic-6ffa10f4830f7831453b1051e7b86358a728240f.tar.gz |
bionic: benchmark: additional clock_gettime performance tests
Provide a means to check vdso kernel performance for each of
CLOCK_MONOTONIC (current), CLOCK_MONOTONIC_COARSE,
CLOCK_MONOTONIC_RAW, CLOCK_REALTIME, CLOCK_REALTIME_COARSE,
CLOCK_BOOTTIME.
Add a suites/vdso.xml to select subset of tests impacted by
vdso implementations.
Test: /data/nativetest{64}/bionic-benchmarks-tests/bionic-benchmarks-tests
/data/benchmarktest{64}/bionic-benchmarks/bionic-benchmarks \
--bionic_xml=vdso.xml --benchmark_filter=BM_time_clock_gettime*
Bug: 63737556
Change-Id: Ibc48e838e50929527ce8d221dd1a608bf185cbc2
Diffstat (limited to 'benchmarks/time_benchmark.cpp')
-rw-r--r-- | benchmarks/time_benchmark.cpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/benchmarks/time_benchmark.cpp b/benchmarks/time_benchmark.cpp index 4c6d5ddf2..f44c2802f 100644 --- a/benchmarks/time_benchmark.cpp +++ b/benchmarks/time_benchmark.cpp @@ -23,6 +23,7 @@ #include "util.h" static void BM_time_clock_gettime(benchmark::State& state) { + // CLOCK_MONOTONIC is required supported in vdso timespec t; while (state.KeepRunning()) { clock_gettime(CLOCK_MONOTONIC, &t); @@ -31,6 +32,7 @@ static void BM_time_clock_gettime(benchmark::State& state) { BIONIC_BENCHMARK(BM_time_clock_gettime); static void BM_time_clock_gettime_syscall(benchmark::State& state) { + // CLOCK_MONOTONIC is required supported in vdso timespec t; while (state.KeepRunning()) { syscall(__NR_clock_gettime, CLOCK_MONOTONIC, &t); @@ -38,6 +40,51 @@ static void BM_time_clock_gettime_syscall(benchmark::State& state) { } BIONIC_BENCHMARK(BM_time_clock_gettime_syscall); +static void BM_time_clock_gettime_MONOTONIC_COARSE(benchmark::State& state) { + // CLOCK_MONOTONIC_COARSE is required supported in vdso + timespec t; + while (state.KeepRunning()) { + clock_gettime(CLOCK_MONOTONIC_COARSE, &t); + } +} +BIONIC_BENCHMARK(BM_time_clock_gettime_MONOTONIC_COARSE); + +static void BM_time_clock_gettime_MONOTONIC_RAW(benchmark::State& state) { + // CLOCK_MONOTONIC_RAW is required supported in vdso + timespec t; + while (state.KeepRunning()) { + clock_gettime(CLOCK_MONOTONIC_RAW, &t); + } +} +BIONIC_BENCHMARK(BM_time_clock_gettime_MONOTONIC_RAW); + +static void BM_time_clock_gettime_REALTIME(benchmark::State& state) { + // CLOCK_REALTIME is required supported in vdso + timespec t; + while (state.KeepRunning()) { + clock_gettime(CLOCK_REALTIME, &t); + } +} +BIONIC_BENCHMARK(BM_time_clock_gettime_REALTIME); + +static void BM_time_clock_gettime_REALTIME_COARSE(benchmark::State& state) { + // CLOCK_REALTIME_COARSE is required supported in vdso + timespec t; + while (state.KeepRunning()) { + clock_gettime(CLOCK_REALTIME_COARSE, &t); + } +} +BIONIC_BENCHMARK(BM_time_clock_gettime_REALTIME_COARSE); + +static void BM_time_clock_gettime_BOOTTIME(benchmark::State& state) { + // CLOCK_BOOTTIME is optionally supported in vdso + timespec t; + while (state.KeepRunning()) { + clock_gettime(CLOCK_BOOTTIME, &t); + } +} +BIONIC_BENCHMARK(BM_time_clock_gettime_BOOTTIME); + static void BM_time_gettimeofday(benchmark::State& state) { timeval tv; while (state.KeepRunning()) { |