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From Michael McCandless <luc...@mikemccandless.com>
Subject PulsingCodec (in trunk)
Date Sat, 05 Jun 2010 20:27:13 GMT
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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