Hi Nickman, Thanks for the response. Yes, we are seeing slowdown, measurably. The CPU goes to 100%, but it's not the expected way. We have 4 processors. Each processor gets up to 25% (never any higher): 100% = 25% X 4. Once this threshold is reached, JBoss crawls. This is observed in a production system for a highly public, well-known, and high-traffic application. This application is middle-ware business logic only (EJBs, POJOs, etc). There is no web server or JSP/servlet load on this box. And it's not very DB intensive.
So, the load is sufficient and we have ruled out the DB as the bottle-neck. We have never seen this application (or any other of our production apps running on JBoss) produce a CPU utilization higher than 25% per processor. Any ideas? Has anyone ran into a similar situation? Does anyone have experience running JBoss on multi-CPU box running Linux 9.0? What do you think about the possibility that we may have our thread count too low, so that it could be maxing out our threads, but never fully utilizing our CPUs? As always, any help is greatly appreciated. --Joe View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3888266#3888266 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3888266 ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ JBoss-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jboss-user
