Dave Taht <dave.t...@gmail.com> writes: > On Wed, Jul 25, 2018 at 3:07 AM Sebastian Moeller <moell...@gmx.de> wrote: >> >> Hi Toke, >> >> >> > On Jul 25, 2018, at 12:02, Toke Høiland-Jørgensen <t...@toke.dk> wrote: >> > >> > Dave Taht <dave.t...@gmail.com> writes: >> > >> >> I really wanted cake to always optimize for low latency. I wanted it >> >> to "just work" at line rate on dsl, on 100mbit, even 10mbit ethernet, >> >> to work against pause frames, etc, without configuration. I wanted to >> >> defeat drivers like the mvneta that can do 64k of software GRO >> >> automagically. >> > >> > So I think that Eric's point was that the GSO logic itself should >> > throttle back and not build so big packets when the link rate is lower. >> > Might be worth it to check if this is actually the case, and if not to >> > get GSO fixed rather than disabling it. > > It doesn't and I think I should just put forth the patch and face the > howling from the 40gbit guys.
Well, feel free I guess? :) >> > Also, are there actually any modems that will negotiate ethernet line >> > rates less than a gigabit? >> >> Yes, there are XDSL Modem(routers) that only have >> fast-ethernet ports. Not sure how rare these are though. > > And there are also many devices that ecert hardware flow control. But why would you ever run with such a device in a setup where flow control gets a chance to kick in? Wouldn't you turn on the shaper anyway (in which case you already get GSO splitting)? -Toke _______________________________________________ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake