[TAG] 480% CPU?

[Jim Jackson]

On Wed, 24 Oct 2007, Neil Youngman wrote:

> On Tuesday 23 October 2007 22:26, Karl-Heinz Herrmann wrote:
> > On Tue, 23 Oct 2007 13:27:44 +0100
> >
> > Neil Youngman <Neil.Youngman at youngman.org.uk> wrote:
> > > observe that pressing 'I' changed the output, so that 480% became
> > > more like 250%. This seems to be an "Irix mode" toggle and I have no
> > > idea why it should
> >
> > Maybe you could also try to press "1" -- then all CPUs will be shown
> > individually.
>
> Yeah, that showed individual CPU stats which were phone, but the process stats
> were still garbage.

I recall a thread on lkml prompted by bizarre TOP figures.

http://lkml.org/lkml/2007/10/3/123

this contribution seems to imply there were problems with dual core AMD64
see...

http://lkml.org/lkml/2007/10/3/276

but there were other issues around an actual kernel bug.

A change of kernel may get rid of the problem?