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https://issues.apache.org/jira/browse/LUCENE-1574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12776321#action_12776321
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Jason Rutherglen commented on LUCENE-1574:
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I suppose as we're on Java 1.5, ConcurrentLinkedQueue can be used.
> PooledSegmentReader, pools SegmentReader underlying byte arrays
> ---------------------------------------------------------------
>
> Key: LUCENE-1574
> URL: https://issues.apache.org/jira/browse/LUCENE-1574
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/*
> Affects Versions: 2.4.1
> Reporter: Jason Rutherglen
> Priority: Minor
> Fix For: 3.1
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> PooledSegmentReader pools the underlying byte arrays of deleted docs and
> norms for realtime search. It is designed for use with IndexReader.clone
> which can create many copies of byte arrays, which are of the same length for
> a given segment. When pooled they can be reused which could save on memory.
> Do we want to benchmark the memory usage comparison of PooledSegmentReader vs
> GC? Many times GC is enough for these smaller objects.
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