I did a bunch of work on calculating 95th percentile last year. Bottom line: you can't get a valid 95th percentile value out of rrd files due to the way that rrd aggregates data down. Librenms is even worse because it provides you with a 95th in and a 95th out -- which is practically never what you actually want -- and there's no easy way to get a single number out of that. I don't know if there's a way to pull it out of the nfdump files using nfsen, but I had a set of scripts that pulled out per-local-ip-bytes-per-timeperiod and stored those values in a database (for customer IP throughput numbers) -- I merely extended this to also calculate a 95th percentile value.
You can read about it here: https://wiki.xdroop.com/space/Calculating+Network+Traffic+95th+Percentile On Thu, Oct 10, 2019 at 12:18 PM Leandro Roggerone <ingrog...@gmail.com> wrote: > Hi guys , I need to get 95th from my profiles for billing propose. > It would be great if I can calculate it from my netflow data. > I have been reading some very old emails like : > https://sourceforge.net/p/nfsen/mailman/message/22107926/ . > > Here it sugest to modify script that creates rrd files. > So ... > Does anyone tryed it? I can not find the file to add those changes. > > Is there any other way/something newer to get nfsen displaying 95th > percentile ? > Can you suggest other idea/method ? > I was thinking about using nfdump on every profile-data file and do the > proper maths. > What do you think ? > > Any help on this would be pretiate. > > b/w , I can have 95th perc on librenms or cacti , but there I have all > traffic mixed. > Regards!! > Leandro. > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > Libre > de virus. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > <#m_1024420879804291609_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > _______________________________________________ > Nfsen-discuss mailing list > Nfsen-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/nfsen-discuss >
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