Re: [PATCH net] tcp: add one more quick ack after after ECN events

2018-06-28 Thread David Miller
From: Eric Dumazet Date: Wed, 27 Jun 2018 08:47:21 -0700 > Larry Brakmo proposal ( https://patchwork.ozlabs.org/patch/935233/ > tcp: force cwnd at least 2 in tcp_cwnd_reduction) made us rethink > about our recent patch removing ~16 quick acks after ECN events. > > tcp_enter_quickack_mode(sk, 1)

Re: [PATCH net] tcp: add one more quick ack after after ECN events

2018-06-27 Thread Neal Cardwell
On Wed, Jun 27, 2018 at 11:47 AM Eric Dumazet wrote: > > Larry Brakmo proposal ( https://patchwork.ozlabs.org/patch/935233/ > tcp: force cwnd at least 2 in tcp_cwnd_reduction) made us rethink > about our recent patch removing ~16 quick acks after ECN events. > > tcp_enter_quickack_mode(sk, 1) make

[PATCH net] tcp: add one more quick ack after after ECN events

2018-06-27 Thread Eric Dumazet
Larry Brakmo proposal ( https://patchwork.ozlabs.org/patch/935233/ tcp: force cwnd at least 2 in tcp_cwnd_reduction) made us rethink about our recent patch removing ~16 quick acks after ECN events. tcp_enter_quickack_mode(sk, 1) makes sure one immediate ack is sent, but in the case the sender cwnd