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https://issues.apache.org/jira/browse/LUCENE-9157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17020382#comment-17020382
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Adrien Grand commented on LUCENE-9157:
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TestDocIdsWriter has some for loops that look like "for (int i = 0; i <
atleast(X); i++)", we should compute the atLeast() up-front instead of in every
loop? Otherwise +1, thanks for looking into making tests run faster!
> test speedup for slowest tests
> ------------------------------
>
> Key: LUCENE-9157
> URL: https://issues.apache.org/jira/browse/LUCENE-9157
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Priority: Major
> Attachments: LUCENE-9157.patch
>
>
> On a single cpu laptop it takes ~ 30 minutes to run {{ant test}}.
> The number of tests is increasing: around 23,000 according to
> https://people.apache.org/~mikemccand/lucenebench/antcleantest.html
> But just a few tests dominate all the time. If we tone the worst offenders
> down to be more reasonable, we can cut overall test time in half.
> This doesn't fix all the really slow tests... just some of them. Mostly I
> focused on ones taking double-digit seconds (that's REALLY SLOW)
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