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author | Elliott Hughes <enh@google.com> | 2012-11-09 14:59:21 -0800 |
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committer | Steve Kondik <shade@chemlab.org> | 2013-02-15 10:02:23 -0800 |
commit | 29af685e7a54c3196b69911106603c155bc99f83 (patch) | |
tree | 3c3213aca29ab2b70c015b508ab6df7f4b9e3735 | |
parent | 6ca6dbe8ba50a670ad394909cfa2aa0bac6e579b (diff) | |
download | bionic-29af685e7a54c3196b69911106603c155bc99f83.zip bionic-29af685e7a54c3196b69911106603c155bc99f83.tar.gz bionic-29af685e7a54c3196b69911106603c155bc99f83.tar.bz2 |
Add a memmove(3) benchmark.
Change-Id: I9c0ffae0b5aae29521b7e68e5ce2318b5a401cba
-rw-r--r-- | tests/string_benchmark.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/string_benchmark.cpp b/tests/string_benchmark.cpp index cbb9771..7ac8e98 100644 --- a/tests/string_benchmark.cpp +++ b/tests/string_benchmark.cpp @@ -62,6 +62,22 @@ static void BM_memcpy(int iters, int nbytes) { } BENCHMARK(BM_memcpy)->AT_COMMON_SIZES; +static void BM_memmove(int iters, int nbytes) { + StopBenchmarkTiming(); + char* buf = new char[nbytes + 64]; + memset(buf, 'x', nbytes + 64); + StartBenchmarkTiming(); + + for (int i = 0; i < iters; i++) { + memmove(buf, buf + 1, nbytes); // Worst-case overlap. + } + + StopBenchmarkTiming(); + SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(nbytes)); + delete[] buf; +} +BENCHMARK(BM_memmove)->AT_COMMON_SIZES; + static void BM_memset(int iters, int nbytes) { StopBenchmarkTiming(); char* dst = new char[nbytes]; |