Process level in Catalyst 4503E

maucapina · ‎11-29-2010

Hi Guys

I have a Catalyst 4503E switch with a Supervisor II+TS. I have monitoring for several weeks and I see that the process is over 40%:

SwCore_1#sh processes cpu history

    1111111111111111111222221111111111111111111111111222221111
    2222444442222222222888883333311111333335555511111000002222
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)

    2222223232322232323222212132212222223232222232323122323232
    8480902201048000100084788820899390813201878801504987200157
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 minute (last 60 minutes)
              * = maximum CPU%   # = average CPU%

    4333344444444444444444444444444444444444444444444444444444444444444444
    0878812210221334335335333535534355435455454354354333353333435353333354
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%

I have doubts about the behavior. I sent the show process cpu sorted too:

SwCore_1#show processes cpu sorted
CPU utilization for five seconds: 11%/0%; one minute: 14%; five minutes: 14%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
41   572362468 481661154       1188 5.91% 7.72% 8.09%   0 Cat4k Mgmt LoPri
40   192315428 624250320        308 4.07% 4.30% 4.21%   0 Cat4k Mgmt HiPri
80     9612020 98428005         97 0.47% 0.53% 0.53%   0 Spanning Tree
77    21263268 60073083        353 0.31% 0.50% 0.45%   0 IP Input
128     3666112 54408528         67 0.23% 0.20% 0.21%   0 HSRP (Standby)
13    13250492 32542870        407 0.15% 0.13% 0.15%   0 ARP Input
141          48     66829          0 0.07% 0.07% 0.07%   0 RADIUS
34      743720 12028085         61 0.07% 0.09% 0.09%   0 IDB Work
   9           0         2          0 0.00% 0.00% 0.00%   0 Timers
10           0         2          0 0.00% 0.00% 0.00%   0 Serial Backgroun
11           0         1          0 0.00% 0.00% 0.00%   0 Crash writer
12           0         1          0 0.00% 0.00% 0.00%   0 ifIndex Receive
   7    20338512   2047578       9932 0.00% 0.21% 0.18%   0 Check heaps

Mohamed Sobair · ‎11-29-2010

Hi,

There is no unusual behaviour from the (show processes cpu sorted) command. Could you please run this command again when the CPU reaches 40 or above 40% and post the output here.

As ageneral note, 40% is not Scary Percentage of CPU utilization, but for checking purposes , you should figure what most consumes your CPU.

HTH

Mohamed

glen.grant · ‎11-29-2010

As previous poster said that is not high . these switches will show 30% with nothing running on them . If you worried about it then go thru the high cpu doc.

http://www.cisco.com/en/US/partner/products/hw/switches/ps663/products_tech_note09186a00804cef15.shtml

maucapina · ‎11-30-2010

Thanks Glen

maucapina · ‎11-30-2010

Thanks Mohamed