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Finding total Percentage CPU usage

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# 1  
Old 04-30-2010
Finding total Percentage CPU usage
Hi,

How can I find total CPU usage in percentage? e.g. if my system has 8 CPUs and I want to list total usage for all of them, is it possible through a command?

I have tried some of the commands like top, mpstat, sar. The output of those commands has to be manipulated to derive the percentage CPU utilization. I am looking for some other command.

Thanks in advance.
# 2  
Old 04-30-2010
What hardware?
Which Operating System?
Which shell?
# 3  
Old 04-30-2010
If your OS has mpstat, it is very likely to have vmstat too. vmstat last columns output are the CPU percentages you are looking for.
# 4  
Old 04-30-2010
OS: Red Hat Enterprise Linux AS release 3
Shell: ksh
# 5  
Old 04-30-2010
MySQL
Top command output..

Code:
CPU states:  cpu    user    nice  system    irq  softirq  iowait    idle
           total    8.9%    0.0%    4.3%   0.1%     0.8%   19.3%   66.3%
           cpu00    6.6%    0.0%    4.4%   0.5%     2.4%   20.8%   65.0%
           cpu01    4.0%    0.0%    2.3%   0.0%     0.6%   30.4%   62.4%
           cpu02   13.4%    0.0%    0.7%   0.0%     0.0%   16.7%   68.9%
           cpu03    2.1%    0.0%    1.2%   0.0%     0.0%   17.1%   79.2%
           cpu04    6.4%    0.0%    6.1%   0.0%     0.3%   19.3%   67.6%
           cpu05   16.5%    0.0%    4.5%   0.0%     0.0%   32.8%   45.9%
           cpu06    7.1%    0.0%    6.3%   0.0%     0.6%   19.9%   65.9%
           cpu07   12.7%    0.0%   12.0%   0.0%     0.2%   24.7%   50.1%
           cpu08    9.8%    0.0%    9.5%   1.0%     1.1%   13.1%   65.1%
           cpu09    8.8%    0.0%    5.7%   0.5%     6.4%   17.3%   61.0%
           cpu10   16.9%    0.0%    3.0%   0.0%     0.1%    7.1%   72.6%
           cpu11    7.7%    0.0%    3.6%   0.0%     0.2%   15.0%   73.2%
           cpu12    4.4%    0.0%    2.8%   0.0%     0.1%   15.9%   76.6%
           cpu13    9.0%    0.0%    3.0%   0.0%     0.0%   47.5%   40.2%
           cpu14    3.5%    0.0%    0.7%   0.0%     0.3%    0.8%   94.4%
           cpu15   83.5%    0.0%   16.4%   0.0%     0.0%    0.0%    0.0%



And when press the C .. (Collapsed SMP CPU stats)
the output

Code:
CPU states:  cpu    user    nice  system    irq  softirq  iowait    idle
           total   14.2%    0.0%    5.3%   0.1%     0.9%   20.6%   58.7%

Dou you want like this?
Last edited by ygemici; 04-30-2010 at 08:33 AM.. Reason: editing for Redhat 3
# 6  
Old 04-30-2010
Quote:
Originally Posted by jal_capri
The output of those commands has to be manipulated to derive the percentage CPU utilization. I am looking for some other command.
You might find that a bit of a setback, but Unix is a general-purpose operating system and not specifically designed to meet your personal needs. The Bell Labs. people, in short-sighted ignorance, only implemented the tools you need to build what you want and did not bother at all to anticipate what especially you might want a few decades later.

With this in mind: write a small script which converts the data you get from the system into the form you want and be done. Its the way things are.

bakunin
# 7  
Old 04-30-2010
Code:
$ vmstat
procs                      memory      swap          io     system         cpu
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
 0  0      0 10982104 232072 2817792    0    0     0     0    2     2  0  0  0  0

Can you please help me understand the output above?
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