cpu utilization.

Unanswered Question
Feb 18th, 2008

Hi Experts,

Can any body clearly explain about cpu utilization that how we will caliculate and what are points we should look when calculating cpu utlization.

Below I am pasting one router cpu utilization.

Router1#sh processes cpu history

3222222222233333333333333333333333333333333333333333333333

1999999999922222222223333311111222222222200000111110000000

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)

3333333333333322322232222322322333333333323333322222222233

0333335313100198187809788099198210344200080000087965013400

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%

3342312112255555555555555565544454555555555555555565544445455555556555

4319572563334566732234543354986816124775321233454224767654824766244584

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%

Regards,

Naidu.

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aijaz802 Mon, 02/18/2008 - 22:51

Hi Naidu,

I'm explaining the first graph details..which is last 60 sec history...

Y-axis is for CPU utlization..

X-axis is the time in seconds...which is you can read the columns as 0sec,5 sec, 10sec,15 sec...pls note the values are in vertical for 10 sec its 1 and below is 0...for 35th sec..its 3 and below is 5..

Please check the values again the switch/router..as the alignment of values posted here is gone.

The top two columns denote the maximum cpu utlized...in seconds graph..its 31%...read vertically..

in 60 minutes its 30%, in 72 hrs..its 34%..

I hope u understood it...you can go thru the following link for detailed explanation.

http://www.cisco.com/warp/public/63/showproc_cpu.html

Please rate if it helps..

Regards,

*aijaz*

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