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https://issues.apache.org/jira/browse/LUCENE-10120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17437291#comment-17437291
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Lu Xugang commented on LUCENE-10120:
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{quote}it sounds like your proposal here is to add a new special-case to the
LRU caching that optimizes for an extremely dense iterator, where all documents
within a given min/max range are present (and the extreme case of this being
where all docs match). Is that a correct understanding?{quote}
yes, [~gsmiller], but not must all docs match, only need sub sequential set of
docs also can be represented with minDoc and max Doc
> Lazy initialize FixedBitSet in LRUQueryCache
> --------------------------------------------
>
> Key: LUCENE-10120
> URL: https://issues.apache.org/jira/browse/LUCENE-10120
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Affects Versions: main (9.0)
> Reporter: Lu Xugang
> Priority: Major
> Attachments: 1.png
>
>
> Basing on the implement of collecting docIds in DocsWithFieldSet, may be we
> could do similar way to cache docIdSet in
> *LRUQueryCache#cacheIntoBitSet(BulkScorer scorer, int maxDoc)* when docIdSet
> is density.
> In this way , we do not always init a huge FixedBitSet which sometime is not
> necessary when maxDoc is large
>
>
>
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