[rrd-users] [rrd-developers] RRD + Step in milliseconds

Tobias Oetiker tobi at oetiker.ch
Tue Jun 26 15:46:25 CEST 2012

Hi Michael,

I am not aware of such an extension, but changes might actually not
be all that difficult ...

I guess turning the step parameter from seconds into milli seconds
would be all that is required ... there would still be enough
head-room above

unfortunately such an extension would require a change in rrdtool
data format which makes it difficult to fold this back into
mainline ... but for your research the patch should be fairly
simple ...


Today MLjubich at gmx.net wrote:

> Hello,
> I am researching rrd-[developers|users] archives whether someone have
> done the extension of the RRD tool for milliseconds/sub-second stepping
> (e.g., --step 500ms) in the past?
> To date I found some mail threads with references to the subject but
> without an explicit success mark.
> Using this sub-second extension, I want to research mechanical gearboxes
> installed on remote sites in the field collecting the analogue data from
> gearbox' sensors in an RRA over 1 year via site local network. A gearbox
> aggregate has something like 150 data sources. (~50) of them need to be
> recorded with 100ms step. The system, I have in mind should work
> off-line/autonomously.
> With best regards,
> Michael
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Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900

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