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Posted to java-user@lucene.apache.org by Michael McCandless <lu...@mikemccandless.com> on 2010/06/05 22:27:13 UTC

PulsingCodec (in trunk)

FYI... I was curious to confirm that PulsingCodec (in trunk, with
flexible indexing) gives good performance gains specifically for
primary key fields... so I ran some performance tests and wrote up the
results:

  http://chbits.blogspot.com/2010/06/lucenes-pulsingcodec-on-primary-key.html

Net/net PulsingCodec shows ~45-50% speedup on uncached (in OS's IO
cache) lookups, and ~15% speedup on cached lookups...

Mike

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