Add benchmark for strncmp
Test: run benchmark
Change-Id: Id99d81fe4d2a72a7f22414c7eea3ef3d873022ab
diff --git a/benchmarks/string_benchmark.cpp b/benchmarks/string_benchmark.cpp
index 38122f2..d176675 100644
--- a/benchmarks/string_benchmark.cpp
+++ b/benchmarks/string_benchmark.cpp
@@ -248,6 +248,25 @@
}
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);