lizhanhui commented on PR #8766: URL: https://github.com/apache/rocketmq/pull/8766#issuecomment-2487854123
> @lizhanhui I found no difference between batch and single get key from rocksdb. I will remove prefetch code. Batch: QueryCQ iter 10489877 cost 20527 QueryCQ iter 10489877 cost 19496 QueryCQ iter 10489877 cost 19395 > > Single: QueryCQ iter 10489877 cost 20313 QueryCQ iter 10489877 cost 19196 QueryCQ iter 10489877 cost 18945 Take a look at this blog, MultiGet has quite a few optimizations available, we shall have two options to investigate: 1, Simulated manual iterator with multi-get in the background, to prefetch accordingly; 2, Use RocksDB embedded Iterator; https://rocksdb.org/blog/2022/10/07/asynchronous-io-in-rocksdb.html -- 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...@rocketmq.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
