Jonathan: I think you are wrong. What we care about is keeping packets in flight across the network, with a queue length as close to 1 packet as possible.
If it breaks ingress mode so be it. On Wed, Apr 18, 2018 at 9:54 AM, Jonathan Morton <[email protected]> wrote: >> On 18 Apr, 2018, at 7:11 pm, Toke Høiland-Jørgensen <[email protected]> wrote: >> >> What you're saying here is that you basically don't believe there are >> any applications where a bulk TCP flow would also want low queueing >> latency? :) > > I'm saying that there's a tradeoff between intra-flow induced latency and > packet loss, and I've chosen 4 MTUs as the operating point. > > Bear in mind that with high packet loss, the retransmissions take an extra > RTT to complete in any case, and there's a higher probability of incurring an > RTO which will *really* hurt your intra-flow latency. > > This equation is modified with ECN because a high signalling rate doesn't > result in packet loss or retransmissions, but I'm not presently making any > decisions based on ECN support, except the obvious one of whether to mark or > drop. > > - Jonathan Morton > > _______________________________________________ > Cake mailing list > [email protected] > https://lists.bufferbloat.net/listinfo/cake -- Dave Täht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619 _______________________________________________ Cake mailing list [email protected] https://lists.bufferbloat.net/listinfo/cake
