On Sat, 12 Feb 2011 13:42:25 -0600, Rick wrote:
I am curious about the Rescheduling interrupts. I do not have a dual core system so I have no rescheduling interrupts.
I do not know how many rescheduling interrupts is too many.
A running Firefox, that displays an ordinary News website with several animated GIFs and a couple of Flash ads, here increases the resched.interrupt count by ~100 or more per second. After a few hours of uptime, that will pile up, of course. Marko has quoted the uptime with his "top" output in the blog post. To Marko, you can run
watch -d1 cat /proc/interrupts
in a terminal with and without your mostly used apps running to get a better overview about how the numbers change.
I wonder whether the slowness is specific to running X or only X together with a heavily used Firefox? What other tests have been performed in an attempt to find out whether the system is sluggish in general? Perhaps give "powertop" a try. It reports quite some things about devices that are in use 100% and about stuff that wakes up the cpu often.
In either case, it doesn't sound normal. Certainly not with an average load so low as quoted.