[c-nsp] slow convergence for full bgp table on a Cisco 7613/SUP720-3BXL

[Emanuel Popa]

Here are some snapshots:

br01.frankfurt#sh proc cpu sorted | e 0.00
CPU utilization for five seconds: 52%/6%; one minute: 16%; five minutes: 16%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 326  1014963840   6595633     153885 37.71%  7.03%  7.11%   0 BGP Scanner

br01.frankfurt#sh proc cpu sorted | e 0.00
CPU utilization for five seconds: 78%/4%; one minute: 21%; five minutes: 17%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 326  1014966764   6595647     153885 57.11% 11.04%  7.94%   0 BGP Scanner

br01.frankfurt#sh proc cpu sorted | e 0.00
CPU utilization for five seconds: 78%/4%; one minute: 21%; five minutes: 17%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 326  1014966764   6595647     153885 57.11% 11.04%  7.94%   0 BGP Scanner

br01.frankfurt#sh proc cpu sorted | e 0.00
CPU utilization for five seconds: 5%/3%; one minute: 19%; five minutes: 16%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 123   4034002923513388775          0  1.51%  1.89%  1.92%   0 IP Input
 324    63436592 119933896        528  0.15%  0.30%  0.42%   0 BGP Router

these are consequent outputs at no longer then a couple of seconds...

bye,
emanuel


On 3/13/07, Gert Doering <gert at greenie.muc.de> wrote:
> Hi,
>
> On Tue, Mar 13, 2007 at 04:20:59PM +0200, Emanuel Popa wrote:
> > I have attached an image with the cpu load graphs.
>
> Actually I didn't want to see pretty pictures, but wanted to see *which*
> process is causing the CPU load...
>
> This could be "IP input" (baaaad), "BGP transport" (hints at packet
> loss), "BGP Router" (hmmm), or something else which is drowning out your
> CPU so much that there is no time left for actual BGP update processing...
>
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>                                                            //www.muc.de/~gert/
> Gert Doering - Munich, Germany                             gert at greenie.muc.de
> fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
>