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Remove duplicate code from BenchHash.cpp

This commit is contained in:
sfc-gh-tclinkenbeard 2020-11-21 19:50:44 -08:00
parent 156a617ed8
commit e1ae23db34
1 changed files with 34 additions and 27 deletions
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61
flowbench/BenchHash.cpp
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@ -26,37 +26,44 @@
#include <stdint.h>
static void bench_hash_hashlittle2(benchmark::State& state) {
enum class HashType {
HashLittle2,
CRC32C,
XXHash3,
};
template <HashType hashType>
inline void hash(const KeyRef& key, size_t length) {}
template <>
inline void hash<HashType::HashLittle2>(const KeyRef& key, size_t length) {
uint32_t part1;
uint32_t part2;
hashlittle2(key.begin(), length, &part1, &part2);
benchmark::DoNotOptimize(part1);
benchmark::DoNotOptimize(part2);
}
template <>
inline void hash<HashType::CRC32C>(const KeyRef& key, size_t length) {
benchmark::DoNotOptimize(crc32c_append(0xfdbeefdb, key.begin(), length));
}
template <>
inline void hash<HashType::XXHash3>(const KeyRef& key, size_t length) {
benchmark::DoNotOptimize(XXH3_64bits(key.begin(), length));
}
template <HashType hashType>
static void bench_hash(benchmark::State& state) {
auto length = 1 << state.range(0);
auto key = getKey(length);
while (state.KeepRunning()) {
uint32_t part1;
uint32_t part2;
hashlittle2(key.begin(), length, &part1, &part2);
benchmark::DoNotOptimize(part1);
benchmark::DoNotOptimize(part2);
hash<hashType>(key, length);
}
state.SetItemsProcessed(static_cast<long>(state.iterations()));
}
static void bench_hash_crc32c(benchmark::State& state) {
auto length = 1 << state.range(0);
auto key = getKey(length);
while (state.KeepRunning()) {
benchmark::DoNotOptimize(crc32c_append(0xfdbeefdb, key.begin(), length));
}
state.SetItemsProcessed(static_cast<long>(state.iterations()));
}
static void bench_hash_xxhash3(benchmark::State& state) {
auto length = 1 << state.range(0);
auto key = getKey(length);
while (state.KeepRunning()) {
benchmark::DoNotOptimize(XXH3_64bits(key.begin(), length));
}
state.SetItemsProcessed(static_cast<long>(state.iterations()));
}
BENCHMARK(bench_hash_crc32c)->DenseRange(2, 18)->ReportAggregatesOnly(true);
BENCHMARK(bench_hash_hashlittle2)->DenseRange(2, 18)->ReportAggregatesOnly(true);
BENCHMARK(bench_hash_xxhash3)->DenseRange(2, 18)->ReportAggregatesOnly(true);
BENCHMARK_TEMPLATE(bench_hash, HashType::CRC32C)->DenseRange(2, 18)->ReportAggregatesOnly(true);
BENCHMARK_TEMPLATE(bench_hash, HashType::HashLittle2)->DenseRange(2, 18)->ReportAggregatesOnly(true);
BENCHMARK_TEMPLATE(bench_hash, HashType::XXHash3)->DenseRange(2, 18)->ReportAggregatesOnly(true);