boicehuang opened a new issue, #13318: URL: https://github.com/apache/lucene/issues/13318
### Description https://github.com/apache/lucene/blob/main/lucene/core/src/java/org/apache/lucene/search/LRUQueryCache.java#L747 Can we use ReentrantReadWriteLock in `LRUQueryCache` to allow concurrent cache reading, to improve query performance？ Any help will be appreciated. I benchmarked this optimization by mocking some random LongPoint and querying them with PointInSetQuery with bool filter. doc count | field cardinality | query point | baseline QPS | candidate QPS | diff percentage -- | -- | -- | -- | -- | -- 30000000 | 10 | 1 | 2481 | 5102 | 105.6% 30000000 | 1000000 | 1 | 6396 | 6596.48 | 3.1% I think this change can help filter queries that need to query low-cardinality fields. If it helps, I will submit a PR. -- 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: issues-unsubscr...@lucene.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
