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More readv benchmarks

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This commit is contained in:
Marcus Holland-Moritz 2021-03-25 13:59:08 +01:00
parent f30ca742be
commit 257cadb071
1 changed files with 28 additions and 3 deletions
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31
test/dwarfs_benchmark.cpp
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@ -93,8 +93,8 @@ std::string make_filesystem(::benchmark::State const& state) {
block_manager::config cfg;
scanner_options options;
cfg.blockhash_window_size = 10;
cfg.block_size_bits = 10;
cfg.blockhash_window_size = 8;
cfg.block_size_bits = 12;
options.with_devices = true;
options.with_specials = true;
@ -234,7 +234,22 @@ class filesystem : public ::benchmark::Fixture {
auto i = fs->open(*iv);
for (auto _ : state) {
::benchmark::DoNotOptimize(fs->readv(i, st.st_size));
iovec_read_buf buf;
::benchmark::DoNotOptimize(fs->readv(i, buf, st.st_size));
}
}
void readv_future_bench(::benchmark::State& state, char const* file) {
auto iv = fs->find(file);
struct ::stat st;
fs->getattr(*iv, &st);
auto i = fs->open(*iv);
for (auto _ : state) {
auto x = fs->readv(i, st.st_size);
for (auto& f : *x) {
::benchmark::DoNotOptimize(f.get());
}
}
}
@ -416,6 +431,14 @@ BENCHMARK_DEFINE_F(filesystem, readv_large)(::benchmark::State& state) {
readv_bench(state, "/ipsum.txt");
}
BENCHMARK_DEFINE_F(filesystem, readv_future_small)(::benchmark::State& state) {
readv_future_bench(state, "/somedir/ipsum.py");
}
BENCHMARK_DEFINE_F(filesystem, readv_future_large)(::benchmark::State& state) {
readv_future_bench(state, "/ipsum.txt");
}
} // namespace
BENCHMARK(frozen_legacy_string_table_lookup);
@ -448,5 +471,7 @@ BENCHMARK_REGISTER_F(filesystem, read_small)->Apply(PackParamsNone);
BENCHMARK_REGISTER_F(filesystem, read_large)->Apply(PackParamsNone);
BENCHMARK_REGISTER_F(filesystem, readv_small)->Apply(PackParamsNone);
BENCHMARK_REGISTER_F(filesystem, readv_large)->Apply(PackParamsNone);
BENCHMARK_REGISTER_F(filesystem, readv_future_small)->Apply(PackParamsNone);
BENCHMARK_REGISTER_F(filesystem, readv_future_large)->Apply(PackParamsNone);
BENCHMARK_MAIN();