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lrucache_evict.py 986 B

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  1. # Copyright 2019 The Matrix.org Foundation C.I.C.
  2. #
  3. # Licensed under the Apache License, Version 2.0 (the "License");
  4. # you may not use this file except in compliance with the License.
  5. # You may obtain a copy of the License at
  6. #
  7. # http://www.apache.org/licenses/LICENSE-2.0
  8. #
  9. # Unless required by applicable law or agreed to in writing, software
  10. # distributed under the License is distributed on an "AS IS" BASIS,
  11. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12. # See the License for the specific language governing permissions and
  13. # limitations under the License.
  14. from pyperf import perf_counter
  15. from synapse.util.caches.lrucache import LruCache
  16. async def main(reactor, loops):
  17. """
  18. Benchmark `loops` number of insertions into LruCache where half of them are
  19. evicted.
  20. """
  21. cache = LruCache(loops // 2)
  22. start = perf_counter()
  23. for i in range(loops):
  24. cache[i] = True
  25. end = perf_counter() - start
  26. return end