[rrd-users] RES: Using RRDTool & SNMP to graph CPU usage

[jgeraldo at csu.com.br]

Hi 
I did something like that, but i´m using nagios remote plugins to grab the
data, not SNMP... In fact i´m using a Nagios plugin written by myself. This
plugin got the data from cpu (usr, system e wio), memory (total and used),
load (5 minute average from uptime) and swap space (total and used). It
works on Linux and Solaris.

I got all of these data and insert them into lots of rrd databases and draw
graphs in my intranet machine by machine. 

Now i´m working in tree scenarios:
1 - alter plugin do grab disk space total and used, with a parameter to
exclude some filesystems
2 - alter the process used to insert data to rrd from shell script to C
program
3 - including windows servers in our monitoring environment

I you need more information about my process... Nagios (www.nagios.org) is
free. If you want, you can use those plugins without Nagios engine...
Nagios is a good tool, and it has a good scheduler, with capability to
paralelize execution using threads.

-----Mensagem original-----
De: Graeme Donaldson [mailto:graeme at toxicbunny.net]
Enviada em: quarta-feira, 12 de novembro de 2003 08:10
Para: rrd-users at list.ee.ethz.ch
Assunto: [rrd-users] Using RRDTool & SNMP to graph CPU usage


Hi

I'm trying to figure out how to graph CPU usage percentages with RRDTool. 
I'd like to separately graph User, Nice, System and Idle percentages.  I
think I know which OIDs to monitor (ssCpuRawUser.0, ssCpuRawNice.0, etc),
but I'm not sure what they represent and how to calculate usage
percentages from them.

Has anyone done this before?

Thanks
Graeme

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