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https://issues.apache.org/jira/browse/LUCENE-8180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16370082#comment-16370082
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Robert Muir commented on LUCENE-8180:
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I'm not sure this would help unless the bitset was extraordinarily sparse, in
which case fixedbitset isn't a great representation, and processing is going to
be fast regardless because of the sparsity?
> Explore using (Future)Arrays.mismatch for FixedBitSet.nextSetBit
> ----------------------------------------------------------------
>
> Key: LUCENE-8180
> URL: https://issues.apache.org/jira/browse/LUCENE-8180
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Trivial
> Labels: newdev
>
> Using Arrays.mismatch with a fixed-size array full of zeros might help find
> the next long that is not 0 faster.
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