Thanks Andy. Much appreciated. Although sorry to here this, as rrdtool is held in such high regard. I was looking forward to using it.
I've already used matplotlib quite a bit. A lot of my work is in C and Python. There's certainly nothing wrong with it. But it of course lacks a database like data storage mechanism. An integrated solution is preferred. -Tom On Tue, Apr 21, 2009 at 16:03, Andy Riebs <[email protected]> wrote: > Tom, > > Your implicit assumption is correct: RRDtool is a great tool, but not > for this sort of task. Indeed, the data extrapolation is a big part of > what makes rrdtool so useful for tracking data such as network > throughput, web site hits, and so on. > > Perhaps others on the list can suggest a good plotting tool that will > generate rrdtool-like graphics? Depending on the tool you select, the > database question might also be answered. > > Andy > > On Tue, 2009-04-21 at 22:31 +0000, Tom Vaughan wrote: >> Hi, >> >> I've read the documentation and tutorials at: >> http://oss.oetiker.ch/rrdtool/. And I see that rrdtool requires data >> at specific intervals, and that if data is not inserted at exactly the >> right moment, then the data may be "altered" according to: >> http://oss.oetiker.ch/rrdtool-trac/wiki/RrdFaq#RRDtooldoesnotreturnwhatIputin. >> >> I have a system that takes measurements every 10 ms or so, and >> performs calculations on these measurements anywhere between every 50 >> ms and 100 ms. For the purpose of discussion, let's just say that the >> exact interval within this range is random. I need to be able to store >> the measurements and calculations for later display and analysis. I >> need to know exactly when the data was acted upon (by a measurement or >> a calculation), and I need to have access to the exact data. So I >> can't tell rrdtool at what exact intervals I plan to store data. >> >> The data is structured. It's the same data set every time. And I need >> to produce strip charts like rrdtool provides. I also need to do more >> calculations on the data that is stored, which I think I can do easily >> with RPN. I also need a data "storage" mechanism. Although I can't >> overwrite the data as is done in typical round-robin fashion. But I >> think I can just make a database that is large enough to never be >> overwritten. >> >> Is rrdtool the tool for me? >> >> Thanks. >> >> -Tom >> >> _______________________________________________ >> rrd-users mailing list >> [email protected] >> https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users > > -- Website: www.software6.net E-mail/Google Talk: tom (at) software6 (dot) net Mobile: +1 (310) 704-0787 _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
