Jon Haddad created CASSANDRA-15080:
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Summary: Paxos tables should use a 4KB chunk length
Key: CASSANDRA-15080
URL: https://issues.apache.org/jira/browse/CASSANDRA-15080
Project: Cassandra
Issue Type: Improvement
Components: Feature/Lightweight Transactions
Reporter: Jon Haddad
Attachments: flamegraph-bad-perf.svg
In doing some research for a client on LWTs, I found that once we start pushing
a node hard enough, with enough LWTs, decompressing the data in the paxos table
takes up quite a bit of time. I've attached an SVG flame graph showing about
10% of time is spent in LZ4_decompress_fast in queries hitting the paxos table.
We should be able to get a nice little performance bump from changing this to
4KB chunk length.
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