Re: Doing math on multiple datasources and graphingresult (fwd)

Looking at the rrdtool docs
http://oss.oetiker.ch/rrdtool/doc/rrdgraph_rpn.en.html

there doesn't appear to be an exponent operator 

Try using this
         rrd-cdef    = ds1, 4294967286,*,ds0,+

instead of this
         rrd-cdef    = ds1,2,32,*,ds0,+
                       this is (2*32)+ds0 and leaves ds1 on the stack

-----Original Message-----
From: Marc Powell [mailto:[email protected]] 
Sent: Friday, January 11, 2008 5:39 PM
To: Richman, Marc; [email protected]
Subject: RE: [cricket-users] Doing math on multiple datasources and
graphingresult (fwd)



> It would be nice if the documentation
> http://cricket.sourceforge.net/support/doc/reference.html had a
section
> on COMPUTE under rrd-ds-type, there is a mention of it in the PERFMON
> section,
> 
> Also I think the RPN is missing an exponentiation operator, also not
> listed in the docs, perhaps it is "**"?
> Anyone know?

Unless I'm completely mistaken, both the COMPUTE DS type and all RPN
calculations are provided by rrdtool, unmodified by Cricket. Have you
looked at the rrdtool documentation for the above?

--
Marc


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