> From: lightbulb432 [mailto:[EMAIL PROTECTED] > Subject: Re: Tomcat with 8 GB memory > > The last is at the following link, several performance > graphs for Linux show a slight or sharp decrease in > performance for a given Tomcat instance beyond a certain > number of users! Why is this? > http://www.webperformanceinc.com/library/reports/windows_vs_linux_part1/ index.html
Read the text, don't just look at the pictures: "In the next part of this report, we will find that tuning the JVM memory parameters resolve the performance slump that we saw in this round of testing" They overloaded a toy machine (512 MB - get serious) and saw GC issues. Nothing to do with Tomcat, just with overrunning their setup. Running multiple instances of Tomcat (or any other Java application) means you have _less_ aggregate heap memory available than for a single instance. I suspect running with JRE 6 would avoid the slump even without tweaking the heap settings, but I don't have time to verify that. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
