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Brandon Williams commented on CASSANDRA-17998: ---------------------------------------------- bq. But can we at least make this opt-in by default? +1, I think there should be a way to disable this. > Mutation Serialization Caching > ------------------------------ > > Key: CASSANDRA-17998 > URL: https://issues.apache.org/jira/browse/CASSANDRA-17998 > Project: Cassandra > Issue Type: Improvement > Components: Messaging/Internode > Reporter: T Jake Luciani > Assignee: T Jake Luciani > Priority: Normal > Fix For: 4.x > > > A performance change that adds mutation serialization caching to avoid > re-serializing the mutation for commitlog and nodes twice. > * Cached serialization for storage proxy and local commitlog > * Cached deserialization for messaging service and local commitlog > This yields a non trivial perf gain (~7-10%) and latency drop (median) > [https://tjake.github.io/other/cached-mutations-report.html] > > The cached buffer is stored by MessagingService version to avoid being used > by differing nodes during upgrades. > Also, It avoids caching mutations larger than a threshold to avoid GC issues. > > GH PR: https://github.com/apache/cassandra/pull/1954 > -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org