Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage

Ingo Molnar
2007-10-29T20:41:51Z

* Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> > - return clock_t_to_cputime(utime);
> > + p->prev_utime = max(p->prev_utime, clock_t_to_cputime(utime));
> > + return p->prev_utime;
> > }
> [...]
>
> I dont think it will work. It will make utime monotic, but stime can
> still decrease. For example let sum_exec_runtime increase by a tiny
> little bit while utime will get a full additional tick. stime is
> sum-utime. So stime can still go backwards. So I think that we need
> this kind of logic for stime as well, no?

yeah, probably. Peter?

Ingo