[c-nsp] High CPU Utilisation

[Rodney Dunn]

Please do some intial work by searching CCO for "troubleshooting
high CPU" and at least tell us some of the things you have
proved it is "not".
ie: you have CEF enabled
    you have verified you are not process switching a lot of traffic
    via 'sh int stat' 
    etc...



On Mon, Jun 20, 2005 at 07:18:15AM -0000, Gangasagar Amula wrote:
> Dear All,
> We are facing high CPU utilisation....Pls suggest...how to go ahead....Any other info...if req..pls inform....
> ------------------ show version ------------------
> Cisco Internetwork Operating System Software 
> IOS (tm) 3600 Software (C3640-IS-M), Version 12.2(28a), RELEASE SOFTWARE (fc2)
> Technical Support: http://www.cisco.com/techsupport
> Copyright (c) 1986-2005 by cisco Systems, Inc.
> Compiled Mon 28-Mar-05 16:15 by kellmill
> Image text-base: 0x60008930, data-base: 0x6113A000
> ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
> ROM: 3600 Software (C3640-IS-M), Version 12.2(28a), RELEASE SOFTWARE (fc2)
> WZ-3640 uptime is 3 days, 12 hours, 3 minutes
> System returned to ROM by power-on
> System image file is "flash:c3640-is-mz.122-28a.bin"
> cisco 3640 (R4700) processor (revision 0x00) with 59392K/6144K bytes of memory.
> Processor board ID 26446120
> R4700 CPU at 100Mhz, Implementation 33, Rev 1.0
> Channelized E1, Version 1.0.
> Bridging software.
> X.25 software, Version 3.0.0.
> SuperLAT software (copyright 1990 by Meridian Technology Corp).
> Primary Rate ISDN software, Version 1.1.
> 1 FastEthernet/IEEE 802.3 interface(s)
> 26 Serial network interface(s)
> 8 Low-speed serial(sync/async) network interface(s)
> 1 Channelized E1/PRI port(s)
> DRAM configuration is 64 bits wide with parity disabled.
> 125K bytes of non-volatile configuration memory.
> 16384K bytes of processor board System flash (Read/Write)
> Configuration register is 0x2102
> 
> ---------------------------------------------------------------------------
> WZ-3640#sh processes cpu his
>      7777777777777776666666666666666666677777888887777666668888
>      0000022222000008888855555999997777744444666669999777776666
> 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)
> 
>      8997799877877666877779766667678797669777677766665666666665
>      6552599557109627013816446597981171870303945234359394433728
> 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%
> 
>      7421111211111111222111111111122121111112223959898655555545555556578999
>      5217898099789989110847886855616935777660373982990333003397356654769998
> 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%
> 
> WZ-3640#
> WZ-3640#
> WZ-3640#
> WZ-3640#
> WZ-3640#
> WZ-3640#sh processes cpu sorted | ex 0.00
> CPU utilization for five seconds: 71%/42%; one minute: 69%; five minutes: 69%
>  PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
>   33    15678820  14514585       1080 15.81% 15.52% 14.59%   0 IP Input
>   78     7432700  21365617        347  9.91%  8.27%  7.00%   0 CCP manager
>    7     4500692    131560      34210  2.70%  1.75%  1.62%   0 Serial Backgroun
>   90         912       482       1892  0.57%  0.37%  0.13% 132 Virtual Exec
>   88     1558100   1955186        796  0.40%  1.30%  1.20%   0 IP-EIGRP Router
>   84      413256   2847224        145  0.32%  0.27%  0.25%   0 IP-EIGRP Hello
>   11      244792    350239        698  0.16%  0.22%  0.24%   0 ARP Input
> WZ-3640#
> Regs/ Sagar....
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