Personally I like to create graphs using the GD:Graph perl module. 
http://www.enstimac.fr/Perl/perl5.6.1/site_perl/5.6.1/GD/Graph.html

On Sat, 17 Nov 2001, Mike Hicks wrote:

> Has anyone found a good alternative to MRTG?  I like MRTG a lot, but it's
> lacking in some areas.  The configuration file is simple enough to
> understand, but it gets really cumbersome. So many things have to be
> changed -- even if you're just duplicating an entry.  I also really like
> RRDtool-generated graphs..  MRTG appears to currently be stuck just
> graphing two variables..
> 
> I really like the output that HotSaNIC (an RRDtool frontend --
> http://www.bernisys.prima.de/linux/HotSaNIC) generates.  The `halo' idea
> for seeing the maximum, minimum, and average for a variable is really
> cool.  Unfortunately, it doesn't appear to talk SNMP.
> 
> Regarding SNMP, does anyone know where to find data about system load or
> CPU usage as well as disk usage through Solaris's SNMP daemon?  Just about
> everything else seems to get advertised...
> 
> -- 
>  _  _  _  _ _  ___    _ _  _  ___ _ _  __   I like to reminisce with
> / \/ \(_)| ' // ._\  / - \(_)/ ./| ' /(__   people I don't know.
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> [ Mike Hicks | http://umn.edu/~hick0088/ | mailto:hick0088 at tc.umn.edu ]