North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: How do you (not how do I) calculate 95th percentile?
Jo Rhett wrote: I am wondering what other people are doing for 95th percentile calculations We use maximums, every 5 minutes. A lot of smaller folks check the counter every 5 min and use that sameActually, a lot of people do 5 minutes... and I would say that larger companies don't check them more often because they are using 64 bit counters, as should anyone with over about 100Mbps of traffic. Are you larger In our setup, as with a lot of people likely, any data that is older than 30 days is averaged. However, we store the exact maximums for the most current 30 days.folks averaging the retrieved values over a larger period? Using the maximum within a larger period? Or just using your saved values? This is curiosity only. A few years ago we compared the same data and the Note: I have AboveNet, Savvis, Verio, etc calculations. I'm wondering if there are any other odd combinations out there. Reply to me offlist. If there is interest I'll summarize the results without identifying the source. -- ------------------------------------------------------ Tom Sands Chief Network Engineer Rackspace Managed Hosting (210)447-4065 ------------------------------------------------------
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