Hi Otis, Thanks for the feedback.
2008/6/11 Otis Gospodnetic <[EMAIL PROTECTED]>: > Hi Glen, > > Aha, good to see the benefit of multiple IndexReaders/Searchers so clearly. > Makes me think we'll want to add a config setting for this in Solr... :) Until then, you might want to use: Runtime.availableProcessors() as the default #. Oh no, that won't work: it gives me 8 (the number of hyperthread processors) versus 4 (# of real cores. Hmm, I consider not being able to find the number of physical cores as being, well, a bug (I guess you could turn-off hyperthreading). Anyone know if there is a JSR looking for perhaps: Runtime.availableRealProcessors() ?? > As for why 4 is the best choice, I think it's because of those 4 cores that > you've got. My guess is that you'll see slightly better performance with 5 > threads and then the performance will slowly deteriorate with more > readers/searchers.... let's see it! I'm running it & will post when it is done. thanks, Glen :-) > > Otis > -- > Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch > > > ----- Original Message ---- >> From: Glen Newton <[EMAIL PROTECTED]> >> To: java-user@lucene.apache.org >> Sent: Wednesday, June 11, 2008 2:07:45 PM >> Subject: Concurrent query benchmarks, with 1,2,4,8 readers >> >> I have extended my evaluation (previous evaluation: >> http://zzzoot.blogspot.com/2008/06/simultaneous-threaded-query-lucene.html) >> to include as well as an increasing # of threads performing concurrent >> queries, 1,2,4 and 8 IndexReaders. >> >> The results can be found here: >> http://zzzoot.blogspot.com/2008/06/lucene-concurrent-search-performance.html >> >> thanks, >> >> Glen >> >> -- >> >> - >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- - --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
