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https://issues.apache.org/jira/browse/LUCENE-10473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17508980#comment-17508980
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Adrien Grand commented on LUCENE-10473:
---------------------------------------

I opened https://github.com/apache/lucene/pull/754 with a few fixes. It just 
implements a few low hanging fruits that help significantly speed up nightly 
tests, more work is needed to tune e.g. numbers of iterations, but this needs 
more work to understand how much coverage it would invalidate, so I'm not 
tackling it for now.

> Address slow testRandomBig runs
> -------------------------------
>
>                 Key: LUCENE-10473
>                 URL: https://issues.apache.org/jira/browse/LUCENE-10473
>             Project: Lucene - Core
>          Issue Type: Task
>            Reporter: Julie Tibshirani
>            Priority: Major
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> While working on the 9.1 release, we noticed the smoke tester sometimes 
> taking several hours. It looks like some tests can take a really long time, 
> especially when a higher "tests.multiplier" is used (than the default of 1):
> {code:java}
> The slowest tests (exceeding 500 ms) during this run:
>   3298.44s TestDoubleRangeFieldQueries.testRandomBig (:lucene:core)
>   2869.82s Test2BPostings.test (:lucene:core)
>   1951.74s TestLatLonDocValuesQueries.testRandomBig (:lucene:core)
>   1628.04s TestLatLonPointQueries.testRandomBig (:lucene:core)
>   1492.32s TestGeo3DPoint.testRandomBig (:lucene:spatial3d)
>   1481.19s TestXYDocValuesQueries.testRandomBig (:lucene:core)
>   1351.95s TestXYPointQueries.testRandomBig (:lucene:core)
>   940.30s TestLongRangeFieldQueries.testRandomBig (:lucene:core)
>   871.50s Test4GBStoredFields.test (:lucene:core)
>   743.00s TestFloatRangeFieldQueries.testRandomBig (:lucene:core)
> {code}
> -The main offender looks like {{{}BaseSpatialTestCase#testRandomBig{}}}, we 
> should look into making this run faster.-
> Maybe relates to LUCENE-8643?



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