[luau] CPU states in top?

[Matthew John Darnell]

> Charles Lockhart wrote:
> > I just got a 1u rack mount dual Xeon system from these guys:
> >
> > http://www.swt.com/thin4.html
> >
> > I was looking at top and noticed that it lists 4 CPU states, where I'd
> > generally figure there'd be one per CPU.  Any ideas why this would be? I
> > opened it up to be sure, and yep, there's only 2 CPUs.
> Any chance it could have something to do with the Xeon's
> "Hyperthreading" technology?  I think I read something somewhere
> (helpful, I know) that mentioned that the Linux kernel can treat the P4s
> with hyperthreading as virtual dual processors.

Windows reports 2 per CPU as well with the Zeons.  With a dual CPU box you
will see 4 in the task manager.

-Matt