xinyiZzz opened a new pull request, #28794: URL: https://github.com/apache/doris/pull/28794
## Proposed changes Storage page cache uses plain LRU Cache, occasional batch operations can cause "cache pollution" in plain LRU Cache. This will cause hotspot data to be squeezed out of the cache by non-hotspot data, reduce cache hit rate. In extreme cases, if the number of pages inserted each time is greater than the cache capacity, the cache hit rate will be 0. Introducing LRU-K Cache avoids "cache pollution" in most cases. ## Further comments If this is a relatively large or complex change, kick off the discussion at [d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you chose the solution you did and what alternatives you considered, etc... -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
