I recommended you to set up the min Heap Size = Max Heap Size = 2048M. Don¹t forget to set up proper min and max permanent size as well. If your Tomcat needs to create a lot threads, think about reducing the stack size to accommodate more threads in a limit memory. It requires to set up proper value of the max file descriptors if you run Tomcat in Linux/Unix. Setting up proper GC mode is also important for response time and throughput. John Wang
On 6/17/14, 14:21, "James H. H. Lampert" <jam...@touchtonecorp.com> wrote: >We launch Tomcat from a CL program, with a command front-end, and >currently we have the defaults set to 512M for the minimum heap space, >and 2048M for the maximum, running 7.0.47 or 7.0.54, and using the JVM >at /QOpenSys/QIBM/ProdData/JavaVM/jdk60/32bit. > >Any recommendations about heap size, particularly with bigger boxes? > >-- >JHHL > >--------------------------------------------------------------------- >To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org