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https://issues.apache.org/jira/browse/LUCENE-6024?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14184968#comment-14184968
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ASF subversion and git services commented on LUCENE-6024:
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Commit 1634478 from [~jpountz] in branch 'dev/trunk'
[ https://svn.apache.org/r1634478 ]
LUCENE-6024: Speed-up BitSet.or/and/andNot.
> Improve oal.util.BitSet's bulk and/or/and_not
> ---------------------------------------------
>
> Key: LUCENE-6024
> URL: https://issues.apache.org/jira/browse/LUCENE-6024
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: 5.0
>
> Attachments: LUCENE-6024.patch
>
>
> LUCENE-6021 introduced oal.util.BitSet with default impls taken from
> FixedBitSet. However, these default impls could be more efficient (and eg.
> perform an actual leap frog for AND and AND_NOT).
> Additionally, SparseFixedBitSet could benefit from some specialization.
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