On Mon, Jun 4, 2018 at 6:16 AM, Jonas Mårtensson <[email protected]> wrote: > > > On Mon, Jun 4, 2018 at 1:28 PM, Bless, Roland (TM) <[email protected]> > wrote: >> >> Hi, >> >> Am 24.05.2018 um 17:38 schrieb Jan Ceuleers: >> > Took 3 years after Dave approached them, but Ubuntu is finally adopting >> > fq_codel as the default qdisc. >> >> Yes, if the Linux kernel is forwarding packets it makes a lot of sense, >> but I don't understand why it make sense for ordinary end-systems. >> Didn't Byte Queue Limits (BQL) suffice? Just curious... > > > Actually, for a long time now the codel wiki has recommended using sch_fq > instead of fq_codel for servers.
That recommendation predates the tcp pacing change you note below. I'm pretty convinced fq_codel is now the best all around "default" qdisc, and we should rework our recomendation. > It seems Ubuntu defaulting to fq_codel is a result of using systemd which > adopted it as default almost 4 years ago. There was a request to change the > default in systemd from fq_codel to sch_fq in order to support pacing but > the issue was closed when tcp internal pacing was introduced in linux 4.13: > > https://github.com/systemd/systemd/issues/5090 > > /Jonas > > _______________________________________________ > Bloat mailing list > [email protected] > https://lists.bufferbloat.net/listinfo/bloat > -- Dave Täht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619 _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
