From 36ebcfffbc7ab0e83b4bb8dfaec16bf16cafb954 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Thu, 12 Sep 2019 18:36:44 -0700 Subject: tcp: use sacks for timer based recovery Type: feature If available, reuse sack scoreboard in timer triggered retransmit to minimize spurious retransmits. Additional changes/refactoring: - limited transmit updates - add sacked rxt count to scoreboard - prr pacing of fast retransmits - startup pacing updates - changed loss window to flight + mss Change-Id: I057de6a9d6401698bd1031d5cf5cfbb62f2bdf61 Signed-off-by: Florin Coras --- src/vnet/tcp/tcp_newreno.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'src/vnet/tcp/tcp_newreno.c') diff --git a/src/vnet/tcp/tcp_newreno.c b/src/vnet/tcp/tcp_newreno.c index 8b704a6ba04..e9213a2e6d9 100644 --- a/src/vnet/tcp/tcp_newreno.c +++ b/src/vnet/tcp/tcp_newreno.c @@ -20,17 +20,11 @@ newreno_congestion (tcp_connection_t * tc) { tc->ssthresh = clib_max (tcp_flight_size (tc) / 2, 2 * tc->snd_mss); tc->cwnd = tc->ssthresh; - /* Post retransmit update cwnd to ssthresh and account for the - * three segments that have left the network and should've been - * buffered at the receiver XXX */ - if (!tcp_opts_sack_permitted (&tc->rcv_opts)) - tc->cwnd += 3 * tc->snd_mss; } static void newreno_loss (tcp_connection_t * tc) { - tc->ssthresh = clib_max (tcp_flight_size (tc) / 2, 2 * tc->snd_mss); tc->cwnd = tcp_loss_wnd (tc); } -- cgit 1.2.3-korg