[c-nsp] 7201 cpu (revisited)

[Ben Steele]

How many PPPoE sessions did you have terminated and approx what  
traffic flow in those graphs?


On 21/03/2008, at 5:30 AM, Tassos Chatzithomaoglou wrote:

> We did some testing on a NPE-G2 for a week and this was the  
> difference from NPE-G1:
>
> http://img84.imageshack.us/img84/905/g1vsg2px4.gif
>
> PPPoE termination, Qos/ACL/netflow per user, simple mcast, plus some  
> basic routing stuff.
> We used exactly the same setup (latest SB IOS) and same customers on  
> both engines.
>
> G1 was usually showing drops after 70%-75%, G2 hasn't shown any yet.
> If G2 can do anything above 75%, serving x1.5 customers (or x1.5  
> traffic) of that of G1, without showing any drops, then we'll be
> happy ;)
>
> --
> Tassos
>
> Rodney Dunn wrote on 17/3/2008 8:54 μμ:
>> Don't worry about it.
>>
>> Push more load and the CPU will go up but your overall no drop rate
>> and performance is much more with that newer processor.
>>
>> The only way you can prove it is either in a lab with testing
>> gear or watch from drops with the 'sh int'.
>> You will see overruns or ignores once the capacity starts to come
>> in to question.
>>
>> Not a good answer but it's the only one there for this scenario
>> today.
>>
>> Rodney
>>
>> On Mon, Mar 17, 2008 at 11:52:03AM -0700, Mark Kent wrote:
>>>>> Most of your CPU usage comes from interrupts.
>>>>> sh int st
>>>>> Lets see what your interfaces are doing.
>>> GigabitEthernet0/0
>>>         Switching path    Pkts In   Chars In   Pkts Out  Chars Out
>>>              Processor      58937    6909233      53463    7238990
>>>            Route cache 3561281996  824442297 1922951596  564241376
>>>                  Total 3561340933  831351530 1923005059  571480366
>>> GigabitEthernet0/1
>>>         Switching path    Pkts In   Chars In   Pkts Out  Chars Out
>>>              Processor      22461    2697899      27968    7456044
>>>            Route cache  749956906 3834247096 1271047162 1998558616
>>>                  Total  749979367 3836944995 1271075130 2006014660
>>> GigabitEthernet0/2
>>>         Switching path    Pkts In   Chars In   Pkts Out  Chars Out
>>>              Processor          0          0          0          0
>>>            Route cache          0          0          0          0
>>>                  Total          0          0          0          0
>>> GigabitEthernet0/3
>>>         Switching path    Pkts In   Chars In   Pkts Out  Chars Out
>>>              Processor     767250   64149215     783904   55907587
>>>            Route cache 2991435297 3393180667 4107796986  931040113
>>>                  Total 2992202547 3457329882 4108580890  986947700
>>>
>>>
>>> Thanks,
>>> -mark
>>> _______________________________________________
>>> cisco-nsp mailing list  cisco-nsp at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>> _______________________________________________
>> cisco-nsp mailing list  cisco-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>