Re: [tcmtf] Using the concept of "latency budget" for TCM-TF
Joe Touch <touch@isi.edu> Tue, 18 February 2014 18:21 UTC
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Date: Tue, 18 Feb 2014 10:20:51 -0800
From: Joe Touch <touch@isi.edu>
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To: Jose Saldana <jsaldana@unizar.es>, 'Luigi Iannone' <ggx@gigix.net>
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Subject: Re: [tcmtf] Using the concept of "latency budget" for TCM-TF
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On 2/18/2014 12:45 AM, Jose Saldana wrote: > Sure. > > We have studied the effect of the added delay (and jitter) on different > services: VoIP, games. We have even used subjective quality estimators in > order to see the degradation as a function of the period. There's several decades of work - much of this ongoing - studying this effect. You might look into it and cite some of the existing understanding. > We can include some ideas in the second draft (Delay Limits and Multiplexing > Policies to be employed with Tunneling Compressed Multiplexed Traffic Flows, > http://datatracker.ietf.org/doc/draft-suznjevic-tsvwg-mtd-tcmtf/ AFAICT, this implies you assume that the HCI latency budget is yours to consume; you need to account for the rest of the system. Joe > > Thanks, > > Jose > PS: > A paper about the effect on VoIP: > > Jose Saldana, Julian Fernandez-Navajas, Jose Ruiz-Mas, Jenifer Murillo, > Eduardo Viruete, Jose I. Aznar, "Evaluating the Influence of Multiplexing > Schemes and Buffer Implementation on Perceived VoIP Conversation Quality," > Computer Networks (Elsevier), Volume 56, Issue 7, Pages 1893-1919, May 2012. > doi 10.1016/j.comnet.2012.02.004 > > > Another one about the effect on a game: > > Jose Saldana, Julian Fernandez-Navajas, Jose Ruiz-Mas, Eduardo Viruete > Navarro, Luis Casadesus, "Online FPS Games: Effect of Router Buffer and > Multiplexing Techniques on Subjective Quality Estimators," Multimedia Tools > and Applications, Springer. doi 10.1007/s11042-012-1309-4 > >> -----Mensaje original----- >> De: Luigi Iannone [mailto:ggx@gigix.net] >> Enviado el: lunes, 10 de febrero de 2014 16:38 >> Para: Jose Saldana >> CC: Joe Touch; tcmtf@ietf.org; tsv-area@ietf.org >> Asunto: Re: [tcmtf] Using the concept of "latency budget" for TCM-TF >> >> Hi, >> >> On 7 Feb. 2014, at 09:44 , Jose Saldana <jsaldana@unizar.es> wrote: >> >> [snip] >>> >>> The only question that is different in TCM-TF is that we have to >>> multiplex packets, so for certain services we must define a >>> "multiplexing period" (the added delay is half the period in average). >>> In this case, we can control this portion of the added delay. We can >>> tune the period if the latency gets modified. >>> >> >> Will this be documented in the documents produced by the WG? >> >> I mean, it would be useful to have something that describes performances >> with different multiplexing period and may be a recommended setup >> depending of the traffic type (e.g. gaming vs voip). >> >> What do you think? >> >> L. >> >> >> >>> This is why I thought that was interesting here: we can control and >>> tune a part of the latency in this case. >>> >>>> >>>> Joe >>> >>> Thanks! >>> >>> Jose >>> >>> _______________________________________________ >>> tcmtf mailing list >>> tcmtf@ietf.org >>> https://www.ietf.org/mailman/listinfo/tcmtf >> >
- [tcmtf] Using the concept of "latency budget" for… Jose Saldana
- Re: [tcmtf] Using the concept of "latency budget"… Mirko Sužnjević
- Re: [tcmtf] Using the concept of "latency budget"… Joe Touch
- Re: [tcmtf] Using the concept of "latency budget"… Jose Saldana
- Re: [tcmtf] Using the concept of "latency budget"… Luigi Iannone
- Re: [tcmtf] Using the concept of "latency budget"… Jose Saldana
- Re: [tcmtf] Using the concept of "latency budget"… Joe Touch