diff options
| author | Eric Dumazet <edumazet@google.com> | 2018-05-18 00:47:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-05-18 18:40:27 +0300 |
| commit | 9c21d2fc41c0c8930600c9dd83eadac2e336fcfa (patch) | |
| tree | d2a2dfb4516b8fb0d8fe13e7c3bfa0eda2064d0d /net/ipv4/tcp_ipv4.c | |
| parent | 6d82aa242092d73c6d2e210cfaf0ebfbe6de1ccf (diff) | |
| download | linux-9c21d2fc41c0c8930600c9dd83eadac2e336fcfa.tar.xz | |
tcp: add tcp_comp_sack_nr sysctl
This per netns sysctl allows for TCP SACK compression fine-tuning.
This limits number of SACK that can be compressed.
Using 0 disables SACK compression.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index a3f4647341db..adbdb503db0c 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2573,6 +2573,7 @@ static int __net_init tcp_sk_init(struct net *net) sizeof(init_net.ipv4.sysctl_tcp_wmem)); } net->ipv4.sysctl_tcp_comp_sack_delay_ns = NSEC_PER_MSEC; + net->ipv4.sysctl_tcp_comp_sack_nr = 44; net->ipv4.sysctl_tcp_fastopen = TFO_CLIENT_ENABLE; spin_lock_init(&net->ipv4.tcp_fastopen_ctx_lock); net->ipv4.sysctl_tcp_fastopen_blackhole_timeout = 60 * 60; |