There's a tool called "collectL" donated by HP/Compaq. It's a very good tool for capturing and analyzing performance related data. The good thing is you can sample at a higher resolution than SAR with a low overhead..
Here's the link: http://collectl.sourceforge.net/ Cheers, From: Bizhan Gholikhamseh (bgholikh) Sent: Tuesday, September 23, 2008 6:26 PM To: Kernel Newbies Subject: High CPU utilization detection from a kernel module HI Is there any mechanism by which a kernel module can detect high CPU utilization? I can use sar and vmstat in the userland to monitor CPU utilization, but I need a way to detect it at kernel level for example 100% CPU utilization for over 10 msec or evern 1 sec. Thanks, Bizhan
