On Tue, Oct 27, 2015 at 3:14 PM, Toke Høiland-Jørgensen wrote: > So Dave and I did a bit of testing of Cake at a 1-second base RTT. That > showed that, compared with a straight FIFO queue (with a sufficiently > large buffer), throughput was suffering quite a bit under Cake, > especially at large bandwidths. We did two changes to fix this: > > - Turn the hard packet queue size into a lower bound rather than an > upper bound. > > - Scale the target to be 1/16th of the interval. > > The first change allows Cake to actually reach the target throughput, > but it still takes a long while to get there. With the second change, we > actually get the desired behaviour. The attached plot shows the > difference, with the solid line being before the change and the dashed > line being after the change. > > Patch attached. > > Fantastic ! I'm going to test it and report back. I'm interested in how this will perform for 350ms RTT. > -Toke > > > _______________________________________________ > Cake mailing list > Cake@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cake > >