Hi Rick, Today Rick Jones wrote:
> On 06/26/2012 06:46 AM, Tobias Oetiker wrote: > > 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 ... > > If the units for step were reduced to milliseconds, wouldn't it also be a good > idea to extend the allowed data input timestamp from milliseconds to > microseconds? I would try to keep step and precision in sync, the curent solution is already a hack, no need preserving that if you modify things anyway ... go down to microsecond step precision then ... cheers tobi > > rick jones > > > > > cheers > > tobi > > > > > > Today mljub...@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 > > > > > > _______________________________________________ > > > rrd-developers mailing list > > > rrd-develop...@lists.oetiker.ch > > > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-developers > > > > > > > > > > -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland http://it.oetiker.ch t...@oetiker.ch ++41 62 775 9902 / sb: -9900 _______________________________________________ rrd-users mailing list rrd-users@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users