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https://issues.apache.org/jira/browse/LUCENE-6516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568072#comment-14568072
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Steve Rowe commented on LUCENE-6516:
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bq. You have a, ehm, non-standard, slightly above average, machine, Steve ;D
True: Intel 3GHz Core i7-5960X Haswell-E (8-real-cores); 64GB DDR4 RAM (running
@2400MHz); Intel 750-series NVMe SSD.
bq. Just curious if any mere mortal will be able to run these in parallel!...
[~mikemccand] reported that -Dtests.heapsize=30g was required to run some (I
think only one?) of the monster tests, so to run them at all one needs
lots-o-RAM; mere mortality is insufficient to run them serially even.
It shouldn't harm serial monster test runners to split these out, I don't
think? IMHO every monster test should be in its own suite, to enable parallel
execution.
> Split monster tests in Test2BSortedDocValues out into their own suites so
> that they can be run in parallel
> ----------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-6516
> URL: https://issues.apache.org/jira/browse/LUCENE-6516
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Steve Rowe
> Priority: Trivial
> Attachments: LUCENE-6516.patch
>
>
> The two monster tests in {{Test2BSortedDocValues}} each take a long time to
> run, e.g. from
> [http://jenkins.sarowe.net/job/Lucene-core-nightly-monster-trunk/23/consoleText]:
> {noformat}
> [junit4] HEARTBEAT J0 PID(29118@localhost): 2015-05-31T07:41:18, stalled
> for 5231s at: Test2BSortedDocValues.test2BOrds
> [...]
> [junit4] HEARTBEAT J0 PID(29118@localhost): 2015-05-31T08:04:18, stalled
> for 1329s at: Test2BSortedDocValues.testFixedSorted
> {noformat}
> If each of these tests were in its own suite, then when run with multiple
> JVMs, they could be run in parallel rather than serially.
> When I do this locally using 4 JVMs, the Lucene core nightly+monster tests
> complete about 20-25 minutes faster (~95 minutes vs. ~120 minutes).
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