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author | nybidari <59618317+nybidari@users.noreply.github.com> | 2020-02-25 15:33:59 -0800 |
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committer | GitHub <noreply@github.com> | 2020-02-25 15:33:59 -0800 |
commit | 818abc2bd5096bf7dc6f621cfd2923bee4e0fc7b (patch) | |
tree | 0f7f90cecb6afc332a3229651eba4da391a46b41 /test/perf/linux/write_benchmark.cc | |
parent | acc405ba60834f5dce9ce04cd762d5cda02224cb (diff) | |
parent | 72e3f3a3eef3a1dc02db0ff71f98a5d7fe89a6e3 (diff) |
Merge branch 'master' into iptables
Diffstat (limited to 'test/perf/linux/write_benchmark.cc')
-rw-r--r-- | test/perf/linux/write_benchmark.cc | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/perf/linux/write_benchmark.cc b/test/perf/linux/write_benchmark.cc new file mode 100644 index 000000000..7b060c70e --- /dev/null +++ b/test/perf/linux/write_benchmark.cc @@ -0,0 +1,52 @@ +// Copyright 2020 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include <fcntl.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <unistd.h> + +#include "gtest/gtest.h" +#include "benchmark/benchmark.h" +#include "test/util/logging.h" +#include "test/util/temp_path.h" +#include "test/util/test_util.h" + +namespace gvisor { +namespace testing { + +namespace { + +void BM_Write(benchmark::State& state) { + auto f = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile()); + FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(Open(f.path(), O_WRONLY)); + + const int size = state.range(0); + std::vector<char> buf(size); + RandomizeBuffer(buf.data(), size); + + for (auto _ : state) { + TEST_CHECK(PwriteFd(fd.get(), buf.data(), size, 0) == size); + } + + state.SetBytesProcessed(static_cast<int64_t>(size) * + static_cast<int64_t>(state.iterations())); +} + +BENCHMARK(BM_Write)->Range(1, 1 << 26)->UseRealTime(); + +} // namespace + +} // namespace testing +} // namespace gvisor |