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https://issues.apache.org/jira/browse/LUCENE-1539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718578#action_12718578
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Michael McCandless commented on LUCENE-1539:
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Right, I think deleteDocsByPercent should 1) determine how many docs to delete
(deletePct * reader.numDocs()), and then 2) random select ones to delete,
counting how many actually were deleted, and stopping when it reaches the
target. To avoid this taking excessively long when too many deletions are
requested, you should probably invert if the %tg is > 50? Ie, choose instead
the docs NOT to delete, and then make a linear sweep to delete any docs not
chosen?
> Improve Benchmark
> -----------------
>
> Key: LUCENE-1539
> URL: https://issues.apache.org/jira/browse/LUCENE-1539
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/benchmark
> Affects Versions: 2.4
> Reporter: Jason Rutherglen
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 2.9
>
> Attachments: LUCENE-1539.patch, LUCENE-1539.patch, LUCENE-1539.patch,
> LUCENE-1539.patch, sortBench2.py, sortCollate2.py
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> Benchmark can be improved by incorporating recent suggestions posted
> on java-dev. M. McCandless' Python scripts that execute multiple
> rounds of tests can either be incorporated into the codebase or
> converted to Java.
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