cpu utilization.

Unanswered Question
Feb 18th, 2008
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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
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  • Bronze, 100 points or more

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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