Hello Erik, On 08/19/21 - 09:17, Erik Auerswald wrote: > Hello Christoph, > > On Wed, Aug 18, 2021 at 03:01:42PM -0700, Christoph Paasch wrote: > > On 08/15/21 - 15:39, Erik Auerswald wrote: > > > [...] > > > I do not think RPM can replace all other metrics. This is, in a way, > > > mentioned in the introduction, where it is suggested to add RPM to > > > existing measurement platforms. As such I just want to point this out > > > more explicitely, but do not intend to diminish the RPM idea by this. > > > In short, I'd say it's complicated. > > > > Yes, I fully agree that RPM is not the only metric. It is one among > > many. If there is a sentiment in our document that sounds like "RPM > > is the only that matters", please let me know where so we can reword > > the text. > > Regarding just this, in section 3 (Goals), item 3 (User-friendliness), > the I-D states that '[u]sers commonly look for a single "score" of their > performance.' This can lead to the impression that RPM is intended to > provide this single score.
yes we can rephrase this: https://github.com/network-quality/draft-cpaasch-ippm-responsiveness/issues/11 > I do think that RPM seems more generally useful than either idle latency > or maximum bandwidth, but for a more technically minded audience, all > three provide useful information to get an impression of the usefulness > of a network for different applications. I agree. Just measuring RPM is not useful. As one can have excellent RPM but still have an Internet connection that is barely usable. However, I still believe that a single score for the user would be great (that score would not be RPM though). This score should group together a large list of network-properties (RPM, goodput, idle latency, protocol conformance,...) and express a value of utility to the user that express how its user-experience is affected. It would make it much easier for non-technical users to compare the quality of their Internet without just focusing on a single throughput-metric. But that is a different topic than RPM ;-) Cheers, Christoph > > Thanks, > Erik > -- > Thinking doesn't guarantee that we won't make mistakes. But not thinking > guarantees that we will. > -- Leslie Lamport _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat
