From ca0c58e9117f356b03952cf85ebcb96a5dba28a4 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Thu, 23 Jul 2020 13:22:44 +0900
Subject: [PATCH] Latest RTT is not affected by ack_delay
---
lib/ngtcp2_conn.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/lib/ngtcp2_conn.c b/lib/ngtcp2_conn.c
index 73b8a566..6d7faf63 100644
--- a/lib/ngtcp2_conn.c
+++ b/lib/ngtcp2_conn.c
@@ -9184,8 +9184,9 @@ void ngtcp2_conn_update_rtt(ngtcp2_conn *conn, ngtcp2_duration rtt,
rtt = ngtcp2_max(rtt, NGTCP2_GRANULARITY);
+ cstat->latest_rtt = rtt;
+
if (cstat->min_rtt == UINT64_MAX) {
- cstat->latest_rtt = rtt;
cstat->min_rtt = rtt;
cstat->smoothed_rtt = rtt;
cstat->rttvar = rtt / 2;
@@ -9201,8 +9202,6 @@ void ngtcp2_conn_update_rtt(ngtcp2_conn *conn, ngtcp2_duration rtt,
rtt -= ack_delay;
}
- cstat->latest_rtt = rtt;
-
cstat->rttvar = (cstat->rttvar * 3 + (cstat->smoothed_rtt < rtt
? rtt - cstat->smoothed_rtt
: cstat->smoothed_rtt - rtt)) /
--
GitLab