On Wed, 19 Jan 2005, Chris Mumford wrote:
> > That is not the experience of others. I have the same chip, Hyperthreaded
> > P4-3ghz, and I typically show 60% idle -- without xvmc, and sometimes
> > with the kernel deinterlace on not a lot less.
>
> Thanks for the info about the deinterlacing and resizing.
>
> As far as CPU utilization I have been using top. Being that my system is
> hyperthreaded I'm pretty sure that top thinks that it has two real CPU's
> instead of a single hyperthreaded one. This is why it never reports a CPU
> utilization greater than 50%. I have been doubling the "us" value. So in
> this example:
>
> top - 08:44:47 up 30 days, 23:52, 1 user, load average: 0.03, 0.02, 0.00
> Tasks: 63 total, 1 running, 62 sleeping, 0 stopped, 0 zombie
> Cpu(s): 3.2% us, 1.9% sy, 0.0% ni, 94.9% id, 0.0% wa, 0.0% hi, 0.0% si
> Mem: 77644k total, 76884k used, 760k free, 31504k buffers
> Swap: 524152k total, 38196k used, 485956k free, 15084k cached
>
> I would say that I was really using 6.4% of my CPU. Is this the wrong
> approach to determining the true CPU utilization?
While top is running hit "1". That will cause top to show individual
tallies for each CPU.
-Mike
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