We run 150+ instances of tomcat on one server. To optimize memory utilization, each tomcat instance is configured with 64MB by default (export JAVA_OPTS="-ms64M -mx64M"). We then watch for Java.Lang.OutOfmemory errors in the logs. If we see any of these over time, we allocate additional RAM in 32MB increments until that instance stops throwing errors. Most instances are happy with 64MB. Some need 96MB or 128MB. We have never seen a tomcat instance that throws OutOfMemory errors with 256MB RAM.
If tomcat is not throwing OutOfMemory errors and system responsiveness is good, is there really any reason to allocate higher amounts of RAM? -- Eric Robinson Disclaimer - June 16, 2010 This email and any files transmitted with it are confidential and intended solely for Tomcat Users List. If you are not the named addressee you should not disseminate, distribute, copy or alter this email. Any views or opinions presented in this email are solely those of the author and might not represent those of . Warning: Although has taken reasonable precautions to ensure no viruses are present in this email, the company cannot accept responsibility for any loss or damage arising from the use of this email or attachments. This disclaimer was added by Policy Patrol: http://www.policypatrol.com/ --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
