diff options
| author | Eric Dumazet <[email protected]> | 2025-05-13 19:39:17 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2025-05-15 18:30:09 +0000 |
| commit | 9ea3bfa61b09e5ae4802661fa9a54438c615c096 (patch) | |
| tree | 2981398752dfa56e8fabb720ef8dd12bf5b4f1a3 /net/ipv4/tcp_ipv4.c | |
| parent | tcp: skip big rtt sample if receive queue is not empty (diff) | |
| download | kernel-9ea3bfa61b09e5ae4802661fa9a54438c615c096.tar.gz kernel-9ea3bfa61b09e5ae4802661fa9a54438c615c096.zip | |
tcp: increase tcp_limit_output_bytes default value to 4MB
Last change happened in 2018 with commit c73e5807e4f6
("tcp: tsq: no longer use limit_output_bytes for paced flows")
Modern NIC speeds got a 4x increase since then.
Signed-off-by: Eric Dumazet <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index d5b5c32115d2..6a14f9e6fef6 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -3495,8 +3495,8 @@ static int __net_init tcp_sk_init(struct net *net) * which are too large can cause TCP streams to be bursty. */ net->ipv4.sysctl_tcp_tso_win_divisor = 3; - /* Default TSQ limit of 16 TSO segments */ - net->ipv4.sysctl_tcp_limit_output_bytes = 16 * 65536; + /* Default TSQ limit of 4 MB */ + net->ipv4.sysctl_tcp_limit_output_bytes = 4 << 20; /* rfc5961 challenge ack rate limiting, per net-ns, disabled by default. */ net->ipv4.sysctl_tcp_challenge_ack_limit = INT_MAX; |