T Jake Luciani created CASSANDRA-17998:
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Summary: 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
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.
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