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 be builded and all the http threads will be responsed by the Servlet at the same time. My question is : when 100 threads do search concurrently, are there any resources shared by differenet threads and these resources caused thread waiting/blocking in lucene IndexSearcher? If it dose, how can I avoid. Thanks again.
wilson --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org