Toke, that link returns a 404 for me. For others, I’ve found that testing cake throughput with isolation options enabled is tricky if there are many competing connections. Like I keep having to tell my customers, fairness algorithms mean no one device will ever gain 100% of the bandwidth so long as there are other open & active connections from other devices.
That said, I’d love to find options to increase throughput for single-tin configs. Cheers, Jonathan > On Aug 31, 2020, at 7:35 AM, Toke Høiland-Jørgensen via Bloat > <bloat@lists.bufferbloat.net> wrote: > > Mikael Abrahamsson via Bloat <bloat@lists.bufferbloat.net> writes: > >> Hi, >> >> I migrated to an APU2 (https://www.pcengines.ch/apu2.htm) as residential >> router, from my previous WRT1200AC (marvell armada 385). >> >> I was running OpenWrt 18.06 on that one, now I am running latest 19.07.3 >> on the APU2. >> >> Before I had 500/100 and I had to use FQ_CODEL because CAKE took too much >> CPU to be able to do 500/100 on the WRT1200AC. Now I upgraded to 1000/1000 >> and tried it again, and even the APU2 can only do CAKE up to ~300 >> megabit/s. With FQ_CODEL I get full speed (configure 900/900 in SQM in >> OpenWrt). >> >> Looking in top, I see sirq% sitting at 50% pegged. This is typical what I >> see when CPU based forwarding is maxed out. From my recollection of >> running CAKE on earlier versions of openwrt (17.x) I don't remember CAKE >> using more CPU than FQ_CODEL. >> >> Anyone know what's up? I'm fine running FQ_CODEL, it solves any >> bufferbloat but... I thought CAKE supposedly should use less CPU, not >> more? > > Hmm, you say CAKE and FQ-Codel - so you're not enabling the shaper (that > would be FQ-CoDel+HTB)? An exact config might be useful (or just the > output of tc -s qdisc). > > If you are indeed not shaping, maybe you're hitting the issue fixed by this > commit? > > https://github.com/dtaht/sch_cake/commit/3152477235c934022049fcddc063c45d37ec10e6n > > -Toke > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat