[rrd-users] Re: Monitoring each CPU in a SMP server

Iñaki Martínez sistema at euskal-linux.org
Wed Jun 26 14:08:49 MEST 2002

Kaixo Thomas Erskine!!!

> >  1) how to get data for each CPU
> >     now i get via mpstat, a program that show each CPU status
> "mpstat -P ALL" works for me under linux.

 Yes... for me too......

 I did ask for another better method.....
> >  3) how to graph ALL CPUs in the same graph, if possible
> >     if NOT possible how to graph, one for each CPU???
> Where's the difficulty?
> rrdtool graph xyzzy.png \
>          --start ... \
>          DEF:user0=my.rrd:user0:AVERAGE
>          DEF:user1=my.rrd:user1:AVERAGE
>          ...
>          LINE1:user0#ff0000
>          LINE1:user1#00ff00
>          ...

 OK.... you are right.... 

 But for each CPU you have 4 lines (user,nice,system and idle) so could be 
very confused graph......

 I think about stack areas, but with two CPUs you have a very big graph.


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