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From Scott Ribe <>
Subject Re: Why Lucene takes longer time for the first query and less for subsequent ones
Date Tue, 17 Nov 2009 19:43:49 GMT
> Most likely due to the operating system caching the relevant portions of the
> index after the first set of queries.

I have enough RAM to keep the Lucene indexes in memory all the time, so I
"dd ... > /dev/null" the files at boot. And also perform a single query to
force JIT of the query code. Then first queries are fast.

Scott Ribe
(303) 722-0567 voice

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