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https://issues.apache.org/jira/browse/HBASE-23779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17082741#comment-17082741
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Michael Stack commented on HBASE-23779:
---------------------------------------
Resolved. Upshot of the survey work done in here is summarized in the release
note.
> Up the default fork count to make builds complete faster; make count relative
> to CPU count
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-23779
> URL: https://issues.apache.org/jira/browse/HBASE-23779
> Project: HBase
> Issue Type: Task
> Components: test
> Reporter: Michael Stack
> Assignee: Michael Stack
> Priority: Major
> Fix For: 3.0.0, 2.3.0
>
> Attachments: Screen Shot 2020-04-08 at 9.19.53 AM.png, Screen Shot
> 2020-04-13 at 4.09.49 PM.png, addendum2.patch, test_yetus_934.0.patch
>
>
> Tests take a long time. Our fork count running all tests are conservative --
> 1 (small) for first part and 5 for second part (medium and large). Rather
> than hardcoding we should set the fork count to be relative to machine size.
> Suggestion here is 0.75C where C is CPU count. This ups the CPU use on my box.
> Looking up at jenkins, it seems like the boxes are 24 cores... at least going
> by my random survey. The load reported on a few seems low though this not
> representative (looking at machine/uptime).
> More parallelism willl probably mean more test failure. Let me take a look
> see.
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