Re: help needed improving lucene concurret search performance

2009-10-24 Thread Wilson Wu
-- Forwarded message -- From: Wilson Wu Date: 2009/10/24 Subject: Re: help needed improving lucene concurret search performance To: java-user@lucene.apache.org Hi,      Thanks a lot for your reply. There are 4 processors in my system.      I am not sure that 100 threads is going

Re: help needed improving lucene concurret search performance

2009-10-24 Thread Wilson Wu
Hi, Thanks a lot for your reply. There are 4 processors in my system. I am not sure that 100 threads is going to be 10 times slower than 10 threads .Because all the threads don't run serial but parallel. I think when there are 100 customers accessing my system,100 http connections will

Re: help needed improving lucene concurret search performance

2009-10-23 Thread Yonik Seeley
How many processors do you have on this system? If you are CPU bound, 100 threads is going to be 10 times slower (at a minimum) than 10 threads (unless you have more than 10 CPUs). -Yonik http://www.lucidimagination.com On Fri, Oct 23, 2009 at 2:18 AM, Wilson Wu wrote: > Dear Friend, >     I hav