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

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?

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Comments

BrizoH

Some form of SNMP graphing tool might be used, for example PRTG

networker050184

Try show proc cpu history.

mrblackmamba343

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%

Monkerz

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_GA

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.