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From "Jason Rutherglen (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-1574) PooledSegmentReader, pools SegmentReader underlying byte arrays
Date Thu, 26 Mar 2009 23:38:50 GMT
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: 2.9


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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