Alan Boudreault created CASSANDRA-9345:
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Summary: LeveledCompactionStrategy bad performance
Key: CASSANDRA-9345
URL: https://issues.apache.org/jira/browse/CASSANDRA-9345
Project: Cassandra
Issue Type: Bug
Reporter: Alan Boudreault
Fix For: 3.0
Attachments: temperature.yaml
While working on CASSANDRA-7409, we noticed that there were some bad
performance with LCS. It seems that the compaction is not triggered as it
should. The performance is really bad when using low heap but we can also see
that using a big heap there are something wrong with the number of compactions.
(Take care when visualizing the graphs, the y-axis scales differ due to some
peaks)
http://dl.alanb.ca/perf/lcs-2.1-vs-trunk-LH.html
http://dl.alanb.ca/perf/lcs-2.1-vs-trunk-BH.html
I've attached the stress yaml config used for this test.
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