You may be getting perf issues from message coalescing depending on what CL you are testing with: https://issues.apache.org/jira/browse/CASSANDRA-12676
Try you tests with: otc_coalescing_strategy: DISABLED > On Jan 19, 2017, at 4:28 PM, Andrew Whang <andrewgwh...@gmail.com> wrote: > > Hi, > > I'm seeing perf regressions (using cassandra-stress) between 2.2.5 and > 3.11. I understand these versions are quite far apart, but just wondering > if there are stress results publicly available that compare 2.x to 3.x? > Thanks.
