On Fri, Sep 10, 2004 at 12:06:47AM +0200, Pierre-Damien Gatouillat wrote: > hmmm, yes it works, I put an "enter" and not a "space". > > Maybe I'm wrong, but when we have a look to a weekly or monthly graph, > all the value are average. The maxima have disappear... > > I thought with another rra, I could print the maxima. Or is there > another solution ?
Be careful about what you are after. The MAX or AVERAGE is the consolidation function (CF). This is the function that is used to combine the data samples together. It is not used for the maximum value across a specific time. Don't get me wrong, MAXIMUM does have uses. It can help with peak loads across several samples, but then the default for JFFNMS is a 1:1 sample, data point ratio so it doesn't help that much. For example, our busy time is around 10am. The graphs as they stand print the maximum for the whole day, which is the largest 5 minute average value. So if the 10am average is 30Mbps then that is the maximum. The MAXIMUM CF will take the samples and give you the largest value for consolidation. So if your samples are 1,1,5,4,20 and your ratio is 5:1 then the value for that whole time period is 20. The average CF would say it was about 6. The problem is that there is already averaging going on due to sampling. If you poll once a minute, the best you can get is the average rate across that minute. This assumes you are using counters. So using MAXIMUM means you are getting a maximum of an average, which means the value changes depending on how lucky or unlucky you poller is. The AVERAGE CF will be approximately the same. - Craig -- Craig Small GnuPG:1C1B D893 1418 2AF4 45EE 95CB C76C E5AC 12CA DFA5 Eye-Net Consulting http://www.enc.com.au/ MIEE Debian developer csmall at : enc.com.au ieee.org debian.org ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 13. Go here: http://sf.net/ppc_contest.php _______________________________________________ jffnms-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jffnms-users
