Are there any recommendations for what JVM would work best? We're not doing anything fancy, so presumably any VM that works well with tomcat would work well for us. Are there any sites that talk about the different JVM tuning options that affect Tomcat? I haven't seen that many.
>-----Original Message----- >From: Ralph Einfeldt [mailto:[EMAIL PROTECTED] >Sent: Thursday, September 11, 2003 12:46 PM >To: Tomcat Users List >Subject: RE: Tomcat cluster tuning > > >mx is limiting the heap of a java process. > >In other words: >It limits the total heap for one tomcat instance. > >The total memory can be much higher: > >- stacksize per thread > Some vm's let you set these values (-Xss). > If you have some hundred of threads that can make up some memory. > >- static memory (like string constants, the code, ...) > That pretty much defined at compile time. > >- and may be further sorts of memories that depend on > the vendor and version of the jdk. > >Regarding your config: > >You can try to play with the combination of > maxProcessors > connectionTimeout > acceptCount > >I'm not shure how the accepted but not processed >request are handled (wether they are queued in one >thread, or if each has it's own thread) > >There isn't much more you can change in tomcat. >The best recommendation I have is to find out where >the memory comes from and either to cure the cause or >find out that you have to live with that memory usage >and spend more memory. > >> -----Original Message----- >> From: Cristopher Daniluk [mailto:[EMAIL PROTECTED] >> Sent: Thursday, September 11, 2003 5:33 PM >> To: [EMAIL PROTECTED] >> Subject: Tomcat cluster tuning >> >> >> >> What is the -Xmx option limiting? Threads? Defined services? >Instances >> of Tomcat? >> >> I would've thought that it would limit the entire tomcat >instance, but >> we have been far exceeding the 768mb limit we set. >> >> >> <Connector >> className="org.apache.coyote.tomcat4.CoyoteConnector" >> port="8009" minProcessors="5" maxProcessors="100" >> enableLookups="true" redirectPort="8443" >> acceptCount="100" debug="0" connectionTimeout="-1" >> >> protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler" >> /> >> > >--------------------------------------------------------------------- >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]
