Mailing List Archive: 7206VXR show proc cpu question.

7206VXR show proc cpu question.

Jan 6, 2004, 10:10 PM

Post #1 of 4 (2133 views)

Hi,

router#show proc cpu

CPU utilization for five seconds: 15%/15%; one minute:
15%; five minutes: 13%

But all the processes are at 0.00%

Where is the 15% coming from? I understand subtracting
the two and them equaling 0 means theres no
process/CPU events occuring, but how to explain 15%? I
know it's low and fine but checked the cisco high cpu
links and it doesn't explain this and I need to
explain the numbers to someone.

This is from a 7206VXR with 12.2(13)T9.

PA-8T-232 in slot 6
Mx serial Port adapter, 4 ports in slot 4,5,6

slot 3, PA-VXA-1TE1-24+
slot 2, PA-2CT3=
slot 1, PA-2T3+= Serial
slot 0, C7200-I/O-2FE/E

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Re: 7206VXR show proc cpu question. [ In reply to ]

gert at greenie

Jan 7, 2004, 2:26 AM

Post #2 of 4 (2067 views)

Permalink

Hi,

On Tue, Jan 06, 2004 at 09:10:51PM -0800, Erick B. wrote:
> router#show proc cpu
>
> CPU utilization for five seconds: 15%/15%; one minute:
> 15%; five minutes: 13%

That's IRQ load -> packet forwarding in the fast path, which isn't
accounted towareds any processes.

gert
--
USENET is *not* the non-clickable part of WWW!
//www.muc.de/~gert/
Gert Doering - Munich, Germany gert@greenie.muc.de
fax: +49-89-35655025 gert@net.informatik.tu-muenchen.de

Re: 7206VXR show proc cpu question. [ In reply to ]

erickbe at yahoo

Jan 7, 2004, 6:02 AM

Post #3 of 4 (2066 views)

Permalink

Gert and everyone else who sent me offline messages,

Thanks for the reply. I realize this is interrupts but
was trying to get a better break down / explaination
of exactly where the 15% was coming from since my
client wants a better breakdown. I realize 15% isn't
much and is good for what they have installed and
configured.

Regards.

--- Gert Doering <gert@greenie.muc.de> wrote:
> Hi,
>
> On Tue, Jan 06, 2004 at 09:10:51PM -0800, Erick B.
> wrote:
> > router#show proc cpu
> >
> > CPU utilization for five seconds: 15%/15%; one
> minute:
> > 15%; five minutes: 13%
>
> That's IRQ load -> packet forwarding in the fast
> path, which isn't
> accounted towareds any processes.
>
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>
> //www.muc.de/~gert/
> Gert Doering - Munich, Germany
> gert@greenie.muc.de
> fax: +49-89-35655025
gert@net.informatik.tu-muenchen.de

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Re: 7206VXR show proc cpu question. [ In reply to ]

Aaron at Cisco

Jan 7, 2004, 9:26 AM

Post #4 of 4 (2070 views)

Permalink

There's no easy way to get a breakdown of what all
is causing time spent in interrupt mode.

Your best bet is to get a look at what all kind of
packet switching is going on ... something like this ...

clear counters
[ wait 5 minutes ]
show int | i line\ protocol|input\ rate|output\ rate
show int stat
show proc cpu | i utilization

hopefully the interrupt mode time correlates with the
fast switched pps.

Aaron

---

> Gert and everyone else who sent me offline messages,

> Thanks for the reply. I realize this is interrupts but
> was trying to get a better break down / explaination
> of exactly where the 15% was coming from since my
> client wants a better breakdown. I realize 15% isn't
> much and is good for what they have installed and
> configured.

> Regards.

> --- Gert Doering <gert@greenie.muc.de> wrote:
> > Hi,
> >
> > On Tue, Jan 06, 2004 at 09:10:51PM -0800, Erick B.
> > wrote:
> > > router#show proc cpu
> > >
> > > CPU utilization for five seconds: 15%/15%; one
> > minute:
> > > 15%; five minutes: 13%
> >
> > That's IRQ load -> packet forwarding in the fast
> > path, which isn't
> > accounted towareds any processes.
> >
> > gert
> > --
> > USENET is *not* the non-clickable part of WWW!
> >
> > //www.muc.de/~gert/
> > Gert Doering - Munich, Germany
> > gert@greenie.muc.de
> > fax: +49-89-35655025
> gert@net.informatik.tu-muenchen.de

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