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tcp: avoid fr segments less than mss if possible

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Type: improvement

Change-Id: I958e059384db3c13a29f64be96877f57617bbae2
Signed-off-by: Florin Coras <fcoras@cisco.com>
This commit is contained in:
Florin Coras
2024-03-22 16:12:53 -07:00
committed by Dave Barach
parent 4941afb4f9
commit e8ea6be8df
1 changed files with 5 additions and 1 deletions
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6
src/vnet/tcp/tcp_output.c
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@ -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;