If I want to find the CPU utilization of a switch for 24hrs how do I go about it?

mrblackmamba343mrblackmamba343 Inactive Imported Users Posts: 136
I know a show process cpu will show you this

CPU utilization for five seconds: 17%/1%; one minute: 48%; five minutes: 37%

how about if I want to view utilization in the last 24hrs?

Comments

  • BrizoHBrizoH Member Posts: 73 ■■■□□□□□□□
    Some form of SNMP graphing tool might be used, for example PRTG
  • networker050184networker050184 Mod Posts: 11,962 Mod
    Try show proc cpu history.
    An expert is a man who has made all the mistakes which can be made.
  • mrblackmamba343mrblackmamba343 Inactive Imported Users Posts: 136
    how do I read this? Does it mean 80% of the CPU has been utilized in the last 72 hours? Is that a bad thing?


    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%
  • MonkerzMonkerz Member Posts: 842
    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. <-[B]HOURS[/B]
              0    5    0    5    0    5    0    5     0    5    0    5    0  <-
    CPU% per hour (last 72 hours)
    * = maximum CPU% # = average CPU%
    

    It means you are averaging a constant 60%, maxing at 70%, utilization for the last 72 hours.
  • Forsaken_GAForsaken_GA Member Posts: 4,024
    And to answer the other question, yes, that utilization is a little high, depending on what it's doing. With that much constant usage, you run the risk of a spike that pegs the CPU to the roof, and turns your Cisco Router into a Cisco Reaper, feeding on the souls of your dead packets.
Sign In or Register to comment.