From 0ed5f1c98a1b4bbc4cf5395ad68ab25b61e510af Mon Sep 17 00:00:00 2001
From: Crystal Jin <crystalj@meta.com>
Date: Thu, 19 Sep 2024 12:38:49 -0700
Subject: [PATCH] Log rtt variance and latest rtt

Summary: As title

Reviewed By: kvtsoy

Differential Revision: D62965330

fbshipit-source-id: 93f865633e589f97589a8b7b06609e8995abf53d
---
 quic/api/QuicTransportBase.cpp   | 1 +
 quic/state/QuicConnectionStats.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/quic/api/QuicTransportBase.cpp b/quic/api/QuicTransportBase.cpp
index 413741997..8aea87998 100644
--- a/quic/api/QuicTransportBase.cpp
+++ b/quic/api/QuicTransportBase.cpp
@@ -2971,6 +2971,7 @@ QuicConnectionStats QuicTransportBase::getConnectionsStats() const {
   connStats.ptoCount = conn_->lossState.ptoCount;
   connStats.srtt = conn_->lossState.srtt;
   connStats.mrtt = conn_->lossState.mrtt;
+  connStats.lrtt = conn_->lossState.lrtt;
   connStats.rttvar = conn_->lossState.rttvar;
   connStats.peerAckDelayExponent = conn_->peerAckDelayExponent;
   connStats.udpSendPacketLen = conn_->udpSendPacketLen;
diff --git a/quic/state/QuicConnectionStats.h b/quic/state/QuicConnectionStats.h
index bca1f7341..e56a04e14 100644
--- a/quic/state/QuicConnectionStats.h
+++ b/quic/state/QuicConnectionStats.h
@@ -28,6 +28,7 @@ struct QuicConnectionStats {
   uint32_t ptoCount{0};
   std::chrono::microseconds srtt{0};
   std::chrono::microseconds mrtt{0};
+  std::chrono::microseconds lrtt{0};
   std::chrono::microseconds rttvar{0};
   uint64_t peerAckDelayExponent{0};
   uint64_t udpSendPacketLen{0};