[jira] [Created] (CASSANDRA-16371) JMH Reports in ci-cassandra.apache.org

["Michael Semb Wever (Jira)" <ji...@apache.org>]

Michael Semb Wever created CASSANDRA-16371:
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             Summary: JMH Reports in ci-cassandra.apache.org
                 Key: CASSANDRA-16371
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16371
             Project: Cassandra
          Issue Type: Task
          Components: CI, Test/benchmark
            Reporter: Michael Semb Wever
            Assignee: Michael Semb Wever
         Attachments: JMH #1 [Jenkins .png

Enable the  jenkins [jmh reporting plugin|https://plugins.jenkins.io/jmh-report/] and add a jenkins job to run the `ant microbench` target.

Patches
 - cassandra-builds: https://github.com/apache/cassandra-builds/compare/trunk...thelastpickle:mck/jenkins-microbench
 - cassandra: https://github.com/apache/cassandra/compare/trunk...thelastpickle:mck/trunk_jmh_report

Example results are:
 - CI JMH report: https://ci-cassandra.apache.org/job/Cassandra-devbranch-microbench/jdk=jdk_11_latest,label=cassandra/1/jmh-run-report/  (screenshot [attached| !JMH #1 [Jenkins .png! ])

The value of these reports is limited, with different hardware jenkins agents and two executors on each agent. But visibility from the reports shows what is possible, how agents are difficult (and behave under saturation), and when jmh classes are broken (there are no unit tests on these benchmark tests).




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