[jira] [Updated] (CASSANDRA-7442) Parallelize unit test runner

["T Jake Luciani (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-7442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

T Jake Luciani updated CASSANDRA-7442:
--------------------------------------
    Component/s:     (was: Tools)
                 Testing

> Parallelize unit test runner
> ----------------------------
>
>                 Key: CASSANDRA-7442
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7442
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Testing
>            Reporter: T Jake Luciani
>            Assignee: T Jake Luciani
>            Priority: Minor
>              Labels: qa-resolved
>             Fix For: 2.1 rc3
>
>         Attachments: 7442.txt, 7442v2.txt
>
>
> Currently we spend ~15 minutes running unit tests.
> We can parallelize the unit tests by splitting the classes up across processes and using more cores.
> This patch adds a new variable -Dtest.runners=X (default is 1)
> Running with 4 runtime goes from 15min to 6min. 
> Beyond 1 runner per core I don't see much of a difference



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