cpu usage in 7.0

Bernd Walter ticso at cicely12.cicely.de
Fri Feb 22 22:31:34 UTC 2008

On Fri, Feb 22, 2008 at 12:54:06PM -0800, Barney Cordoba wrote:
> I have a dual core system running 7.0 and I can't get
> top to show more than 100% usage no matter how I
> hammer it. My MAC shows over 100% often, but its not
> clear if top is averaging the 2 cpus or just not going
> over 100, or just showing 1 of the cpus.

One CPU of a dual CPU system is only 50%.

> Is there any way to show the per-cpu usage to get an
> idea of the overall efficiency of sharing? Are there
> any tools that can be used to monitor this? What
> exactly is top showing?

Each CPU has its own idle thread.
You can see those system threads for example with top -S.

B.Walter                http://www.bwct.de      http://www.fizon.de
bernd at bwct.de           info at bwct.de            support at fizon.de

More information about the freebsd-current mailing list