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Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
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From: Ingo Molnar
Subject:
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
Date: Monday, October 29, 2007 - 1:41 pm
* Christian Borntraeger <borntraeger@de.ibm.com> wrote:
quoted text
> > - 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 -
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Messages in current thread:
2.6.23 regression: top displaying 9999% CPU usage
, Frans Pop
, (Fri Oct 12, 1:31 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Greg KH
, (Fri Oct 12, 2:22 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Frans Pop
, (Sat Oct 13, 12:53 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Christian Borntraeger
, (Sun Oct 14, 1:36 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Christian Borntraeger
, (Tue Oct 16, 1:29 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Balbir Singh
, (Tue Oct 16, 2:30 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Frans Pop
, (Tue Oct 16, 3:11 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Christian Borntraeger
, (Tue Oct 16, 3:34 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Balbir Singh
, (Tue Oct 16, 3:38 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Balbir Singh
, (Tue Oct 16, 5:59 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Frans Pop
, (Mon Oct 29, 5:05 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Balbir Singh
, (Mon Oct 29, 5:31 am)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Ingo Molnar
, (Mon Oct 29, 1:04 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Christian Borntraeger
, (Mon Oct 29, 1:33 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Ingo Molnar
, (Mon Oct 29, 1:41 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Peter Zijlstra
, (Mon Oct 29, 2:11 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Frans Pop
, (Mon Oct 29, 2:22 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Balbir Singh
, (Mon Oct 29, 2:43 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Frans Pop
, (Mon Oct 29, 4:19 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Ingo Molnar
, (Mon Oct 29, 4:22 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Balbir Singh
, (Mon Oct 29, 4:24 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Christian Borntraeger
, (Mon Oct 29, 10:56 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Balbir Singh
, (Mon Oct 29, 11:00 pm)
Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
, Otavio Salvador
, (Tue Oct 30, 1:22 pm)
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