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

[Geert van der Ploeg]

> > 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.

When stacking, the graph will always be 200 "%" high (if including the
"idle" time), no more, no less.


And, if you think that 8 lines is a lot of data:
I have done graphs with more than 25 lines, without problems.

Regards,

Geert van der Ploeg

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