Re: [aqm] [Bloat] TCP BBR paper is now generally available

2016-12-02 Thread Eric Dumazet
On Fri, 2016-12-02 at 23:40 +0100, Steinar H. Gunderson wrote: > On Fri, Dec 02, 2016 at 05:22:23PM -0500, Neal Cardwell wrote: > > Of course, if we find important use cases that don't work with BBR, we will > > see what we can do to make BBR work well with them. > > I have one thing that I

Re: [aqm] [Bloat] TCP BBR paper is now generally available

2016-12-02 Thread Jonathan Morton
> On 2 Dec, 2016, at 21:15, Aaron Wood wrote: > > So, how is this likely to be playing with our qos_scripts and with cake? Cake’s deficit-mode shaper behaves fairly closely like an ideal constant-throughput link, which is what BBR is supposedly designed for. I haven’t

Re: [aqm] [Bloat] TCP BBR paper is now generally available

2016-12-02 Thread Aaron Wood
This is really fascinating reading. The following made me stop for a second, though: "The bucket is typically full at connection startup so BBR learns the underlying network's BtlBw, but once the bucket empties, all packets sent faster than the (much lower than BtlBw) bucket fill rate are

Re: [aqm] TCP BBR paper is now generally available

2016-12-02 Thread David Collier-Brown
On 02/12/16 10:52 AM, Dave Taht wrote: http://queue.acm.org/detail.cfm?id=3022184 Very interesting, but the embedded editorial comments in a different voice can be jarring. --dave -- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some