[rrd-users] Re: Who has the most RRD files (or data sources)?

Mark Plaksin happy at usg.edu
Sun Mar 19 03:44:46 MET 2006

Tobias Oetiker <oetiker at ee.ethz.ch> writes:

> Hi Mark,
> I have not done serious work into performance analysis, but you may
> want to make sure that you have lots of memory and that you use a
> current version of rrdtool with memory mapped io support (1.2 does
> that for you)

Thanks, Tobi!  We are going to switch to 1.2 soon and will use mmap.

Given the way RRDtool is written, do you have a feel for whether one DS per
RRD or many DSes per RRD should perform better?  Different people say one
or the other is better.

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