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From "Ning Li (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-1035) ptional Buffer Pool to Improve Search Performance
Date Fri, 26 Oct 2007 01:31:50 GMT
ptional Buffer Pool to Improve Search Performance
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                 Key: LUCENE-1035
                 URL: https://issues.apache.org/jira/browse/LUCENE-1035
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Store
            Reporter: Ning Li


Index in RAMDirectory provides better performance over that in FSDirectory.
But many indexes cannot fit in memory or applications cannot afford to
spend that much memory on index. On the other hand, because of locality,
a reasonably sized buffer pool may provide good improvement over FSDirectory.

This issue aims at providing such an optional buffer pool layer. In cases
where it fits, i.e. a reasonable hit ratio can be achieved, it should provide
a good improvement over FSDirectory.


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