CPU usage on the host is pretty excessive and I'm trying to figure out why. When I run `top` it goes crazy with refreshes as if I had set a delay of 0. If I set the delay to 60 `top -d 60` then I get updates about 1 per second.

If I run vmstat, I see interrupts around 13k. If I run it with a delay, the interrupts jump to about 45k, regardless of the interval (`vmstat 1` shows 45k interrupts, `vmstat 10` showd 45k interrupts)

I have vmware tools installed.

My suspicion is that my minimal install is missing some critical service, like acpid or cpuspee. This is a samba fileserver, and the only one of four RHEL5 VMs on this host giving this trouble.

Thanks for any advice or links.