what is the difference between WCPU and CPU

[Gert Cuykens]

On Sun, 20 Mar 2005 01:57:32 +0200, Abu Khaled <khaled.abu at gmail.com> wrote:
> On Sat, 19 Mar 2005 22:04:10 +0100, Gert Cuykens <gert.cuykens at gmail.com> wrote:
> > I was looking at top and wondering the difference between WCPU and CPU
> 
> Have you tried "man top"
> 
> "WCPU, when displayed, is the weighted cpu percentage (this is the
> same value that ps(1) displays as CPU), CPU is the raw percentage and
> is the field that is sorted to determine the order of the processes."

I read the top man but it does not explain what weighted cpu is and raw cpu is.