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https://issues.apache.org/jira/browse/HBASE-23779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17030336#comment-17030336
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Mark Robert Miller commented on HBASE-23779:
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bq. More parallelism willl probably mean more test failure. Let me take a look
see.
I'm going to convince you this is a good thing! But maybe not on main branches
until it's a bit smooth.
> 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: Bug
> Components: test
> Reporter: Michael Stack
> Priority: Major
>
> 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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