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From Jamie <>
Subject Lucene 3.0 Search Performance Stats
Date Fri, 19 Mar 2010 11:49:57 GMT
Hi Guys

I just wanted to congratulate the Lucene guys for a fine job on 3.0!!

Since we switched our indexes to using integer based range queries based 
on Date (YYMMHHSS), search speed is lightening fast and memory 
consumption has dropped considerably!

Some stats:

Indexed Docs: 7.2M emails
Index Size: 24 GB (non optimized)
Search Speed: 0.06 - 0.09 seconds (with sort YYMMHHSS date)

Index stored on 4 SAS HDD hitachi RAID 10
2x Xeon 4 core 2.4Gz
OS FreeBSD 7.2
Filesystem UFS2 gjournal

I believe we are using all search performance recommendations now.

Good job!


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