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From Toke Eskildsen>
Subject Re: Binding lucene instance/threads to a particular processor(or core)
Date Wed, 23 Apr 2008 07:37:25 GMT
On Tue, 2008-04-22 at 09:40 +0530, Anshum wrote:
> Any other suggestions for handling a concurrency of over 7 search requests
> per second for an index size of over 15Gigs containing over 13 million
> records?

Our index is 30GB+ with 9 million records and a machine handles an
average search in about 250 ms. This is without proper warm-up and using
conventional harddisks, simple queries and simple processing of hits
(extraction of a field from the first 20 hits).

How often do you change your index and do you perform any kind of
warm-up? What is a typical query, how many hits does it return and what
do you do with the hits?

> Also, could someone help me with obtaining a 'index size' - 'concurrency' -
> 'processor power' - 'memory' relationship formula (or something similar)?

I doubt that you'll find a formula as such, as there are so many
variables influencing performance.

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