CPU load percentage

[Villain]

Is it possible to get the CPU load percentage, instead of a decimal value (0.01, etc.)?

I would like to know if I'm using 10% of the CPU or 100% of the CPU, instead of the values that I am currently receiving. This would be similar to the Windows Task Manager value, only for the linux agent.

Is there a key for this?

[Villain]

nvm, I think I found it. Testing out: system.cpu.util[<cpu> <,type> <,mode>]

[ravibhure]

Petition for someone to fix the unix agents so we can get total cpu utilization
in the meantime, you can create an item such as the following to get cpu usage:
system.run[sar -P ALL 1 2 | grep 'Average.*all' | awk -F" " '{ print 100.0-$NF }']

you have to enable remote commands on agent

[bbrendon]

You can delete your system.cpu.load items and replace with this gem

system.run[echo $((10#`cut -d' ' -f1 /proc/loadavg|tr -d .`/`grep -c processor /proc/cpuinfo`))]

You're welcome. That'll be $110 (1 hr minimum)

[ittec]

Really?

Hi

Im really interested about last answer. Is this output of echo a trust feedback of what is happening at cpu level on linux machine?

If is yes, is very good! Can someone confirm that?

Thanks!

[rue]

Hi

Im really interested about last answer. Is this output of echo a trust feedback of what is happening at cpu level on linux machine?

If is yes, is very good! Can someone confirm that?

Thanks!

Well, I'd say it's sort of interesting, but not quite correct (or I didn't get it ). Let's see:

"cut -d' ' -f1 /proc/loadavg|tr -d ." will give you load average of the machine without decimal point, eg.: load of 1.29 will give you 129.

"grep -c processor /proc/cpuinfo" will give you the number of processors installed.

The rest is for calculating, so basically we have:

result=(load without decimal point)/(number of processors)

Hm, don't know, what exactly should be meassured with that... . Not CPU Usage I assume ... .

I'd try sar, as mentioned above, but you need to enable sar (sysstat) on the machine you want to meassure on... .

cheers

Rü

PS: this one worked for me on Ubuntu 8.10 Zabbix-Agent 1.6.4:

as Userparameter: linux.cpu.usage,sar -P ALL 1 2 | grep 'Average.*all' | awk -F' ' '{ print 100.0-$NF }'

[bbrendon]

What I posted is CPU load as a percent which was the original request.

It uses bash to do the math conversion.

[rue]

What I posted is CPU load as a percent which was the original request.

OK, my misconception was, that I assumed max CPU-Load could only be 100%. For reference: Load under UNIX is a bit more sophisticated than that and gives you a lot more details for capacity planing.

For anybody interested: http://www.teamquest.com/resources/g...ay/5/index.htm

Always nice to learn something

cheers

Rü