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authorFlorin Coras <fcoras@cisco.com>2018-11-07 12:49:19 -0800
committerDamjan Marion <dmarion@me.com>2018-11-08 11:20:29 +0000
commitefefc6b4b219e2897e48def83352b4df52bc03a0 (patch)
tree50e7a57901e34365c1c4f5dc8868c705b192d864 /src/vnet/tcp/tcp.c
parent221d6f131d644b2d14f741c4b3031f53b8a8ff03 (diff)
tcp: pacer and mrtt estimation improvements
- update pacer once per burst - better estimate initial rtt - compute smoothed average for higher precision rtt estimate Change-Id: I06d41a98784cdf861bedfbee2e7d0afc0d0154ef Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.c')
-rw-r--r--src/vnet/tcp/tcp.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index ea350dddc69..d759cf0d0cd 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -802,9 +802,10 @@ format_tcp_vars (u8 * s, va_list * args)
tcp_rcv_wnd_available (tc));
s = format (s, " tsval_recent %u tsval_recent_age %u\n", tc->tsval_recent,
tcp_time_now () - tc->tsval_recent_age);
- s = format (s, " rto %u rto_boff %u srtt %u rttvar %u rtt_ts %2.5f ",
- tc->rto, tc->rto_boff, tc->srtt, tc->rttvar, tc->rtt_ts);
- s = format (s, "rtt_seq %u\n", tc->rtt_seq - tc->iss);
+ s = format (s, " rto %u rto_boff %u srtt %u us %.3f rttvar %u rtt_ts %x",
+ tc->rto, tc->rto_boff, tc->srtt, tc->mrtt_us * 1000, tc->rttvar,
+ tc->rtt_ts);
+ s = format (s, " rtt_seq %u\n", tc->rtt_seq - tc->iss);
s = format (s, " cong: %U", format_tcp_congestion, tc);
if (tc->state >= TCP_STATE_ESTABLISHED)