Bench.h 1.3 KB

1234567891011121314151617181920212223242526272829303132333435
  1. /*
  2. * Copyright 2014-present Facebook, Inc.
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. #pragma once
  17. #include <folly/Benchmark.h>
  18. #define BENCH_GEN_IMPL(gen, prefix) \
  19. static bool FB_ANONYMOUS_VARIABLE(benchGen) = \
  20. (::folly::addBenchmark( \
  21. __FILE__, \
  22. prefix FB_STRINGIZE(gen), \
  23. [](unsigned iters) { \
  24. const unsigned num = iters; \
  25. while (iters--) { \
  26. folly::doNotOptimizeAway(gen); \
  27. } \
  28. return num; \
  29. }), \
  30. true)
  31. #define BENCH_GEN(gen) BENCH_GEN_IMPL(gen, "")
  32. #define BENCH_GEN_REL(gen) BENCH_GEN_IMPL(gen, "%")