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https://issues.apache.org/jira/browse/MAHOUT-916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13675657#comment-13675657
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Dawid Weiss commented on MAHOUT-916:
------------------------------------

> 5400rpm drive.

This is probably the performance killer. If somebody has a (decent) SSD they 
won't feel it.

In Lucene there is a concept of "user config" properties where one can override 
the defaults and adjust them for a particular hardware (lower concurrency of 
tests, for example). Perhaps something like this would be applicable here -- 
don't know how to implement it in Maven though.
                
> Make Mahout's tests run in parallel
> -----------------------------------
>
>                 Key: MAHOUT-916
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-916
>             Project: Mahout
>          Issue Type: Improvement
>          Components: build
>            Reporter: Grant Ingersoll
>            Assignee: Isabel Drost-Fromm
>            Priority: Minor
>              Labels: MAHOUT_INTRO_CONTRIBUTE
>             Fix For: 0.8
>
>         Attachments: MAHOUT-916.patch, MAHOUT-916.patch, MAHOUT-916.patch, 
> MAHOUT-916.patch
>
>
> Maven now supports parallel execution of tests.  We should hook this in to 
> Mahout.

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