On 13. aug. 2013, at 12:47, Daniel Borkmann wrote: > On 08/13/2013 12:23 PM, Michael Welzl wrote: >> On 13. aug. 2013, at 12:09, Daniel Borkmann wrote: >>> On 08/12/2013 02:33 PM, Michael Tuexen wrote: >>>> On Aug 12, 2013, at 2:23 PM, Karl Heiss <kheiss@xxxxxxxxx> wrote: >>>> >>>>> All, >>>>> >>>>> A recent post to the netdev mailing list made it clear that SCTP >>>>> doesn't support socket buffer autotuning. All of a sudden, many of >>>>> our benchmarks start to make sense... Has there been any >>>>> work/investigation to support this? I suspect that there might be >>>>> some difficulty due to the multihoming nature of SCTP, but I haven't >>>>> taken the time to really investigate this avenue... Any insight it >>>>> greatly appreciated. >>>> I think some work was already done: >>>> http://heim.ifi.uio.no/michawe/research/projects/new-transport/implementing-sctp-auto-buffer-tuning.html >>>> Not sure about the current status. >>>> I'm CCing Michael as he most likely knows. >>> >>> Thanks for sharing this link Michael! >>> >>> I'm currently on vacation, but when I'm back, I'll also take a look >>> at it and see what we can do with buffer autotuning on Linux. I already >>> started end of last week to do some experimenting. >> >> Cool! Getting Linux SCTP up to speed would be a wonderful thing! >> >> In case you're interested, Michael Tuexen and I once sat down to create a list of issues that we believe Linux SCTP could have, and it's on these slides: >> http://heim.ifi.uio.no/~michawe/research/publications/caia-feb11.pdf >> no. 28 - 30 >> >> Note that this was a few years ago... still, one or two of the issues might still exist?! >> >> Besides, Morten Hustveit has also began with pluggable congestion control in the SCTP in which he also did the auto-buffer tuning work: >> http://heim.ifi.uio.no/~michawe/research/projects/new-transport/implementing-sctp-pluggable-congestion-control.html >> >> but from the look of the graphs at this page, it never really worked. Still, this is probably a cleanly done starting point. > > Thanks for all the links. > > I will most certainly have a look at those i.e. pluggable cong.control > and auto buffer tuning and also open issues from the slides when I'm > back from vacation! Cool! If something happens, please keep me posted, it would be great to know if some of the stuff we did eventually led to something good! (plus, I could then update my pages accordingly) Have a nice rest-of-vacation! Cheers, Michael -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
