[jira] Resolved: (LUCENE-2096) Investigate parallelizing Ant junit tests

["Robert Muir (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-2096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir resolved LUCENE-2096.
---------------------------------

    Resolution: Duplicate

> Investigate parallelizing Ant junit tests
> -----------------------------------------
>
>                 Key: LUCENE-2096
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2096
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Build
>            Reporter: Erick Erickson
>            Priority: Minor
>
> Ant Contrib has a "ForEach" construct that may speed up running all of the Junit tests by parallelizing them with a configurable number of threads. I envision this in several stages. First, see if ForEach works for us with hard-coded lists, distribute this for testing then make the changes "for real". I intend to hard-code the list for the first pass, ordered by the time they take. This won't do for check-in, but will give us a fast proof-of-concept.
> This approach will be most useful for multi-core machines.
> In particular, we need to see whether the parallel tasks are isolated enough from each other to prevent mutual interference.
> All this assumes the fragmentary reference I found is still available...

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