Re: 2.4 Performance

2008-11-19 Thread Paul Elschot
Op Wednesday 19 November 2008 03:39:01 schreef [EMAIL PROTECTED]: ... > > Our design is roughly as follows: we have some pre-query filters, > queries typically involving around 25 clauses, and some > post-processing of hits. We collect counts and filter post query > using a hit collector, which use

Re: 2.4 Performance

2008-11-19 Thread Michael McCandless
Can you describe the queries in more detail? Can you narrow down exactly which operations / types of queries are substantially slower? Also, I'm assuming both of you are NOT on Windows? NIOFSDirectory has poor performance on Windows due to this bug in Sun's JVM: http://bugs.sun.com/

Re: 2.4 Performance

2008-11-19 Thread Eric Bowman
[EMAIL PROTECTED] wrote: > On an index of around 20 gigs I've been seeing a performance drop of > around 35% after upgrading to 2.4 (measured on ~1 requests > identical requests, executed in parallel against a threaded lucene / > apache setup, after a roughly 1 query warmup). The principal