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Merge "Add benchmark for strncmp"

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Treehugger Robot 2018-08-21 22:16:46 +00:00 committed by Gerrit Code Review
commit 750c01c4b1
1 changed files with 19 additions and 0 deletions
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19
benchmarks/string_benchmark.cpp
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@ -248,6 +248,25 @@ static void BM_string_strcmp(benchmark::State& state) {
}
BIONIC_BENCHMARK_WITH_ARG(BM_string_strcmp, "AT_ALIGNED_TWOBUF");
static void BM_string_strncmp(benchmark::State& state) {
const size_t nbytes = state.range(0);
const size_t s1_alignment = state.range(1);
const size_t s2_alignment = state.range(2);
std::vector<char> s1;
std::vector<char> s2;
char* s1_aligned = GetAlignedPtrFilled(&s1, s1_alignment, nbytes, 'x');
char* s2_aligned = GetAlignedPtrFilled(&s2, s2_alignment, nbytes, 'x');
volatile int c __attribute__((unused));
for (auto _ : state) {
c = strncmp(s1_aligned, s2_aligned, nbytes);
}
state.SetBytesProcessed(uint64_t(state.iterations()) * uint64_t(nbytes));
}
BIONIC_BENCHMARK_WITH_ARG(BM_string_strncmp, "AT_ALIGNED_TWOBUF");
static void BM_string_strstr(benchmark::State& state) {
const size_t nbytes = state.range(0);
const size_t haystack_alignment = state.range(1);