[c-nsp] IP INPUT process growing 9Mb/day

[Mattias Eliasson]

Hi again

Further info, checking sh process cpu history shows that the average is  
below 10% but that cpu peaks out at 90% regularly.

      1                    88888                         11111
      0     11111     333334444455555     33333     333332222299
100
  90
  80                       *****
  70                       *****
  60                       *****
  50                       *****
  40                       *****
  30                       *****
  20                       *****
  10  *                    **********                    *******
     0....5....1....1....2....2....3....3....4....4....5....5....
               0    5    0    5    0    5    0    5    0    5

                CPU% per second (last 60 seconds)



       
9899999898989899999999889999998899898998999899999998989898899988898898
       
2691521829073610320420881143049950908228324801331228372519864389719869
100    * *                           *                          *        
  *
  90   
**********************************************************************
  80   
**********************************************************************
  70   
**********************************************************************
  60   
**********************************************************************
  50   
**********************************************************************
  40   
**********************************************************************
  30   
**********************************************************************
  20   
**********************************************************************
  10   
######################################################################
      
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
               0    5    0    5    0    5    0    5    0    5    0    5   
   0

                    CPU% per hour (last 72 hours)
                   * = maximum CPU%   # = average CPU%


Best regards
Mattias Eliasson
Teknikmejeriet AB


2007-02-23 kl. 09.04 skrev Oliver Boehmer (oboehmer):

> Mattias Eliasson <> wrote on Friday, February 23, 2007 8:48 AM:
>
>> Hi all
>>
>> I wrote a few day ago about a memory fragg issue but got no response.
>>
>> I now have some more info about the problem.
>>
>> It turns out it is not a Fragg but the IP INPUT process growing by
>> 9Mb/day.
>>
>> This will offcourse reach reboot time again soon so any help will be
>> very appreciated.
>>
>> HW Config is 6503-E Sup32 8xGE and a 6148-GE-TX
>>
>> IOS is 12.2(18)SXF7 (which I know several other ISPs run without
>> issues).
>>
>> Config is:
>> 2x full feeds
>> OSPF and iBGP about 150 prefixes
>> 2 GRE-multipoint tunnels
>>
>> What am I missing?
>> Any tips appreciated!
>
> issue "show proc mem <pid>" (where <pid> is the process id of the IP
> Input process) a couple of hours apart and check which PC(s) show an
> increasing number. Please post the result along with a "show version".
> IP Input handles packets to the CPU. Does "show proc cpu" show high
> utilization in the input process?
>
> 	oli