lrucache_evict.py 1010 B

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  1. # -*- coding: utf-8 -*-
  2. # Copyright 2019 The Matrix.org Foundation C.I.C.
  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. from pyperf import perf_counter
  16. from synapse.util.caches.lrucache import LruCache
  17. async def main(reactor, loops):
  18. """
  19. Benchmark `loops` number of insertions into LruCache where half of them are
  20. evicted.
  21. """
  22. cache = LruCache(loops // 2)
  23. start = perf_counter()
  24. for i in range(loops):
  25. cache[i] = True
  26. end = perf_counter() - start
  27. return end