Re: Mean vs Median
"MORTON, ALFRED C (AL)" <[email protected]>
| Newsgroups | gmane.ietf.bmwg |
|---|---|
| Message-ID | <4AF73AA205019A4C8A1DDD32C034631D0F294857BF@NJFPSRVEXG0.research.att.com> |
> -----Original Message----- > From: bmwg [mailto:[email protected]] On Behalf Of Paul Emmerich > Sent: Thursday, November 12, 2015 11:56 AM > To: [email protected] > Subject: Re: [bmwg] Mean vs Median > > On 12.11.15 16:19, Marius Georgescu wrote: > > [MG] Thanks for sharing your paper. I am not sure if this solution > > would make a good comparison base. As I see it, the test report has to > > be synthetic enough to allow easy comparison. Reporting a single > > number might not be enough, but reporting 10 numbers is too much imo. > > Maybe the latency report can be split into two categories: typical > latency and worst-case latency. The former being something like average > and standard deviation (or median and 1st/3rd quartile), the latter the > 90th and 99th percentile? A full test report should (optionally?) > include the full CDF or histogram as a graph. > > [ACM] I have been suggesting (in many places and drafts) that the "worst case" delay should be characterized with RFC5481 PDV, so that it is a view of delay variation and more easily comparable across test runs. The High percentile as a single measure of PDV is built-in, and of course the CDF or histogram is a possibility: https://tools.ietf.org/html/rfc5481#section-4.2 Al (as a participant)