This is a similar question to one already being discussed in the list with the subject "Setting the Right Amount of Memory".
We have 160 instances of tomcat on the same server, with most instances configured to use 64-96MB of RAM. We carefully watch the logs for OOMEs. If we see any, we increase the RAM allocation for that instance by 32MB, which is enough to make the OOMEs go away. Some people say this approach will lead to increased CPU utilization from frequent GC; however, our server runs 90% idle all day long so CPU is evidently not being driven up by much, if any. Given the circumstances, is there anything to be gained from increasing the heap size? Our software vendor wants us to increase each tomcat instance to 512MB, just as a matter of policy, but I don't see a good technical reason to do that. Am I missing something? -- Eric Robinson Disclaimer - June 22, 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
