On Thu, 31 Oct 2002, David Tildesley wrote:
> Date: Thu, 31 Oct 2002 07:19:48 +1300 > From: David Tildesley <[EMAIL PROTECTED]> > Reply-To: Tomcat Users List <[EMAIL PROTECTED]> > To: Tomcat Users List <[EMAIL PROTECTED]> > Subject: RE: How do I increase performance on Tomcat? > > I've observed that increasing memory settings can have the opposite effect > on performance also and introduce a cyclic performance factor (requests per > second spikes quite high and then plummets to very low for sometimes 30 secs > or more. That is exactly what I'd expect to see if you've allocated a lot of memory and the garbage collector fires off. The only way to know for sure is use a monitoring tool. If it is garbage collection, try using incremental mode (set your CATALINA_OPTS environment variable to include "-Xincgc" before starting Tomcat). Craig -- To unsubscribe, e-mail: <mailto:tomcat-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:tomcat-user-help@;jakarta.apache.org>
