From 1718fdd1a8e16f36433b069a0f5d88ea7bdb65f5 Mon Sep 17 00:00:00 2001
From: Bhasker Hariharan <bhaskerh@google.com>
Date: Tue, 5 Mar 2019 16:40:40 -0800
Subject: Add new retransmissions and recovery related metrics.
PiperOrigin-RevId: 236945145
Change-Id: I051760d95154ea5574c8bb6aea526f488af5e07b
---
pkg/sentry/socket/epsocket/epsocket.go | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'pkg/sentry')
diff --git a/pkg/sentry/socket/epsocket/epsocket.go b/pkg/sentry/socket/epsocket/epsocket.go
index 8fa108bea..4e547ea33 100644
--- a/pkg/sentry/socket/epsocket/epsocket.go
+++ b/pkg/sentry/socket/epsocket/epsocket.go
@@ -82,6 +82,12 @@ var Metrics = tcpip.Stats{
SegmentsSent: mustCreateMetric("/netstack/tcp/segments_sent", "Number of TCP segments sent."),
ResetsSent: mustCreateMetric("/netstack/tcp/resets_sent", "Number of TCP resets sent."),
ResetsReceived: mustCreateMetric("/netstack/tcp/resets_received", "Number of TCP resets received."),
+ Retransmits: mustCreateMetric("/netstack/tcp/retransmits", "Number of TCP segments retransmitted."),
+ FastRecovery: mustCreateMetric("/netstack/tcp/fast_recovery", "Number of times fast recovery was used to recover from packet loss."),
+ SACKRecovery: mustCreateMetric("/netstack/tcp/sack_recovery", "Number of times SACK recovery was used to recover from packet loss."),
+ SlowStartRetransmits: mustCreateMetric("/netstack/tcp/slow_start_retransmits", "Number of segments retransmitted in slow start mode."),
+ FastRetransmit: mustCreateMetric("/netstack/tcp/fast_retransmit", "Number of TCP segments which were fast retransmitted."),
+ Timeouts: mustCreateMetric("/netstack/tcp/timeouts", "Number of times RTO expired."),
},
UDP: tcpip.UDPStats{
PacketsReceived: mustCreateMetric("/netstack/udp/packets_received", "Number of UDP datagrams received via HandlePacket."),
--
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