RE: CPU Spike Every 10 seconds

2007-01-10 Thread Caldarale, Charles R
> From: Ashraf Mohamed [mailto:[EMAIL PROTECTED] > Subject: CPU Spike Every 10 seconds > > What does Tomcat do that could cause a cpu spike of almost exactly 50% > almost exactly every 10 seconds? It's most likely the background processor thread for the Catalina engine; loo

CPU Spike Every 10 seconds

2007-01-10 Thread Ashraf Mohamed
Hi, We are running Tomcat 5.5.9 on Windows 2000 Server. Our test involves 500 plus clients sending periodic jsp requests. Performance logs show that the tomcat process spikes up to 50% every 10 seconds even AFTER the test has ended and the clients have stopped sending requests. Tomcat logs show