On 07/16/2010 09:08 AM, shivanic wrote:
Hello, For comparing performance of Apache Tomcat 7 with APR and Jboss Web Server with APR version 2.1.4 with Tomcat 7 we have done a load test of an app.
Your results only show that you have used load testing wrongly. Hitting the server with the simple DoS tool won't give you any relevant relevant info unless you are hitting the web application that has constant response timeout (a bit oxymoron). Such web applications are for example Default servlet, which won't also give you the correct results, cause depending on the file size APR might choose to serve that via OS sendfile, in which case OS might cache that resource and give you the faulty sense of speed. Also the JVM might have it's own logic for GC (easily observable by multiple runs) However if your web application access the external resource (database or something) that has variable response time, all you get as result of testing is the state of that resource availability at the time test was run, not the performance characteristics of the application server. Just to prove my point, use your current test for any of the application servers you've tested so far, and repeat the same test with some random time between test runs, then do the same thing each time restarting the app server, and cleaning up the log files, and you'll see that numbers simply make no sense :) Regards -- ^TM --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
