diff options
| author |   Florin Coras <fcoras@cisco.com> | 2024-03-22 16:12:53 -0700 |
|---|---|---|
| committer |   Dave Barach <vpp@barachs.net> | 2024-03-26 17:24:07 +0000 |
| commit | e8ea6be8dfb626b5bb4ff3355ce8037724ce1d83 (patch) | |
| tree | 9bfdc93044413cf90c818959ff1a4ee98dcdaa60 | |
| parent | 4941afb4f96a20df7dc8b6688f7921a3d713b77d (diff) | |
tcp: avoid fr segments less than mss if possible
Type: improvement
Change-Id: I958e059384db3c13a29f64be96877f57617bbae2
Signed-off-by: Florin Coras <fcoras@cisco.com>
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index e232ed43b69..78148cd5695 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -1810,7 +1810,11 @@ tcp_retransmit_sack (tcp_worker_ctx_t * wrk, tcp_connection_t * tc, break; } - max_bytes = clib_min (hole->end - sb->high_rxt, snd_space); + max_bytes = hole->end - sb->high_rxt; + /* Avoid retransmitting segment less than mss if possible */ + if (snd_space < tc->snd_mss && max_bytes > snd_space) + break; + max_bytes = clib_min (max_bytes, snd_space); max_bytes = snd_limited ? clib_min (max_bytes, tc->snd_mss) : max_bytes; if (max_bytes == 0) break; |