diff options
| author | David S. Miller <davem@davemloft.net> | 2019-01-24 22:27:27 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-24 22:27:27 -0800 |
| commit | 58e0b4abf54cedbfccb34add28e3b1c5427b1998 (patch) | |
| tree | b430fc70530fcd2a655932664bfa5e42a29ca1d1 /include | |
| parent | a1ead2ec3c098d2f94b8de8bb3f1929d27e9e7d5 (diff) | |
| parent | 78dc70ebaa38aa303274e333be6c98eef87619e2 (diff) | |
| download | linux-58e0b4abf54cedbfccb34add28e3b1c5427b1998.tar.gz linux-58e0b4abf54cedbfccb34add28e3b1c5427b1998.zip | |
Merge branch 'tcp_bbr-Improving-TCP-BBR-performance-for-WiFi-and-cellular-networks'
Priyaranjan Jha says:
====================
tcp_bbr: Improving TCP BBR performance for WiFi and cellular networks
Ack aggregation is quite prevalent with wifi, cellular and cable modem
link tchnologies, ACK decimation in middleboxes, and common offloading
techniques such as TSO and GRO, at end hosts. Previously, BBR was often
cwnd-limited in the presence of severe ACK aggregation, which resulted in
low throughput due to insufficient data in flight.
To achieve good throughput for wifi and other paths with aggregation, this
patch series implements an ACK aggregation estimator for BBR, which
estimates the maximum recent degree of ACK aggregation and adapts cwnd
based on it. The algorithm is further described by the following
presentation:
https://datatracker.ietf.org/meeting/101/materials/slides-101-iccrg-an-update-on-bbr-work-at-google-00
(1) A preparatory patch, which refactors bbr_target_cwnd for generic
inflight provisioning.
(2) Implements BBR ack aggregation estimator and adapts cwnd based
on measured degree of ACK aggregation.
====================
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/inet_connection_sock.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index 371b3b45fd5c..fe0d9b44d6fc 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -139,8 +139,8 @@ struct inet_connection_sock { } icsk_mtup; u32 icsk_user_timeout; - u64 icsk_ca_priv[88 / sizeof(u64)]; -#define ICSK_CA_PRIV_SIZE (11 * sizeof(u64)) + u64 icsk_ca_priv[104 / sizeof(u64)]; +#define ICSK_CA_PRIV_SIZE (13 * sizeof(u64)) }; #define ICSK_TIME_RETRANS 1 /* Retransmit timer */ |