[c-nsp] Cat 6500 and counters

[Roman Sokolov]

Hello Dale,

Thursday, April 28, 2005, 7:27:54 PM, you wrote:
>>>> No, netflow does not have any impact on CPU at all
DWC> This is incorrect.

DWC> You will see an increase in switch processor (not route processor)
DWC> cpu utilization as a function of netflow entries.

In real life and busy system nde task can really eat whole supervisor cpu:
XX-sp#sh proc cpu | ex 0.00
CPU utilization for five seconds: 95%/48%; one minute: 92%; five minutes: 92%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  39   666159844 664735728       1002  6.15%  5.21%  5.30%   0 slcp process
  64    42420396 222129733        190  0.15%  0.21%  0.23%   0 Compute load avg
  89   130147160   8051198      16165  1.03%  1.04%  1.03%   0 Vlan Statistics
 132     9550760 120346230         79  0.07%  0.06%  0.06%   0 CEF LC IPC Backg
 221  2983762072 329456565       9056 36.37% 34.87% 35.23%   0 NDE - IPV4
 222  22384302481593495662       1404  0.15%  0.12%  0.08%   0 NDE - MPLS
 234   101523748  22667249       4478  2.15%  1.03%  0.95%   0 TAG Stats Backgr
 241         132       133        992  0.55%  0.14%  0.03%   1 Virtual Exec

And it also can eat significant part of msfc cpu (it eats even more if you
use dfc's):
XX#sh proc cpu | ex 0.00
CPU utilization for five seconds: 68%/46%; one minute: 69%; five minutes: 70%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  87  2577938764 369578891       6975 17.83% 17.54% 17.74%   0 Earl NDE Task
 111   3253422481424619988        228  2.95%  2.33%  2.29%   0 IP Input
 139     5511524   4134385       1333  0.15%  0.03%  0.03%   0 IP RIB Update
 141     7180188  22606555        317  0.15%  0.04%  0.03%   0 CEF process
 269    22659416  64083834        353  0.39%  0.16%  0.13%   0 BGP Router

-- 
Best regards,
 Roman
 mailto:rps at cheater.ru