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Ryan McGuire commented on CASSANDRA-5933: ----------------------------------------- Ah, OK, I can run that test, that also applies to CASSANDRA-5332. However, in this case, I don't believe speculative retry can account for all the difference. The red line has none enabled. > 2.0 read performance is slower than 1.2 > --------------------------------------- > > Key: CASSANDRA-5933 > URL: https://issues.apache.org/jira/browse/CASSANDRA-5933 > Project: Cassandra > Issue Type: Bug > Reporter: Ryan McGuire > Attachments: 1.2-faster-than-2.0.png, 1.2-faster-than-2.0-stats.png > > > Over the course of several tests I have observed that 2.0 read performance is > noticeably slower than 1.2 > Example: > Blue line is 1.2, the rest are various forms of 2.0 rc1 (I've also seen this > on rc2, just don't have a good graph handy) > !1.2-faster-than-2.0.png! > !1.2-faster-than-2.0-stats.png! > [See test data > here|http://ryanmcguire.info/ds/graph/graph.html?stats=stats.eager_retry.node_killed.json&metric=interval_op_rate&operation=stress-read&smoothing=1] -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira