On Tue, 27 Nov 2018, Luca Muscariello wrote:
A BDP is not a large buffer. I'm not unveiling a secret.
It's complicated. I've had people throw in my face that I need 2xBDP in buffer size to smoothe things out. Personally I don't want more than 10ms buffer (max), and I don't see why I should need more than that even if transfers are running over hundreds of ms of light-speed-in-medium induced delay between the communicating systems.
I have routers that are perfectly capable at buffering packets for hundreds of ms even at hundreds of megabits/s of access speed. I choose not to use them though, and configure them to drop packets much earlier.
My point was that FQ_codel helps to get very close to the optimum w/o adding useless queueing and latency. With a single queue that's almost impossible. No, sorry. Just impossible.
Right, I realise I wasn't clear I wasn't actually commenting on your specific text directly, my question was more generic.
-- Mikael Abrahamsson email: swm...@swm.pp.se _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat
