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
