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From "Ariel Weisberg (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-13078) Increase unittest test.runners to speed up the test
Date Tue, 11 Jul 2017 15:48:01 GMT


Ariel Weisberg commented on CASSANDRA-13078:

Have you run the build on Windows? I don't have a convenient way to check that it works on

One other thought is that bash might not be available and expecting a package to be installed
to build is not great. However if the build still runs and it just defaults to one test at
a time that is fine.

> Increase unittest test.runners to speed up the test
> ---------------------------------------------------
>                 Key: CASSANDRA-13078
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Testing
>            Reporter: Jay Zhuang
>            Assignee: Jay Zhuang
>            Priority: Minor
>         Attachments: unittest.png, unittest_time.png
> The unittest takes very long time to run (about 40 minutes on a macbook). By overriding
the [{{test.runners}}|],
it could speed up the test, especially on powerful servers. Currently, it's set to 1 by default.
I would like to propose to set the {{test.runners}} by the [number of CPUs dynamically|].
For example, {{runners = num_cores / 4}}. What do you guys think?

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