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https://issues.apache.org/jira/browse/CASSANDRA-17998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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T Jake Luciani updated CASSANDRA-17998:
---------------------------------------
Fix Version/s: 4.2
(was: 4.x)
Resolution: Fixed
Status: Resolved (was: Ready to Commit)
Committed as
[https://github.com/apache/cassandra/commit/227409d9201fa1aeb9f80b22f499577aedfe25bc]
Final CI
[j8|https://app.circleci.com/pipelines/github/tjake/cassandra/15/workflows/14cfc77f-5f19-49cb-8ff3-de2ea81f25a6]
&
[j11|https://app.circleci.com/pipelines/github/tjake/cassandra/15/workflows/53d342fa-ca65-4dec-bda5-5227e2a70b56]
Final benchmark
[result|https://tjake.github.io/other/cassandra-17998-report.html?metric=Ops_Sec&operation=nb_bench%3Amain.result-success&operation_filter=.%2B&smoothing=1&show_aggregates=true&min_ops=0&xmin=0&xmax=1353.01&ymin=0&ymax=88328.35]
> 8% throughput gain
> 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: 4.2
>
>
> 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
>
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