blob: 1cb8ca737748379c15b1a98d0ae02596b5e73a69 [file] [log] [blame]
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <ostream>
#include "base/basictypes.h"
#include "net/base/net_export.h"
#include "net/quic/quic_time.h"
namespace net {
// Structure to hold stats for a QuicConnection.
struct NET_EXPORT_PRIVATE QuicConnectionStats {
NET_EXPORT_PRIVATE friend std::ostream& operator<<(
std::ostream& os, const QuicConnectionStats& s);
uint64 bytes_sent; // Includes retransmissions, fec.
uint32 packets_sent;
uint64 stream_bytes_sent; // non-retransmitted bytes sent in a stream frame.
uint32 packets_discarded; // Packets serialized and discarded before sending.
// These include version negotiation and public reset packets, which do not
// have sequence numbers or frame data.
uint64 bytes_received; // Includes duplicate data for a stream, fec.
uint32 packets_received; // Includes packets which were not processable.
uint32 packets_processed; // Excludes packets which were not processable.
uint64 stream_bytes_received; // Bytes received in a stream frame.
uint64 bytes_retransmitted;
uint32 packets_retransmitted;
uint64 bytes_spuriously_retransmitted;
uint32 packets_spuriously_retransmitted;
// Number of packets abandoned as lost by the loss detection algorithm.
uint32 packets_lost;
uint32 slowstart_packets_lost; // Number of packets lost exiting slow start.
uint32 packets_revived;
uint32 packets_dropped; // Duplicate or less than least unacked.
uint32 crypto_retransmit_count;
// Count of times the loss detection alarm fired. At least one packet should
// be lost when the alarm fires.
uint32 loss_timeout_count;
uint32 tlp_count;
uint32 rto_count; // Count of times the rto timer fired.
uint32 spurious_rto_count;
uint32 min_rtt_us; // Minimum RTT in microseconds.
uint32 srtt_us; // Smoothed RTT in microseconds.
uint32 max_packet_size; // In bytes.
uint64 estimated_bandwidth; // In bytes per second.
uint32 congestion_window; // In bytes
uint32 slow_start_threshold; // In bytes
// Reordering stats for received packets.
// Number of packets received out of sequence number order.
uint32 packets_reordered;
// Maximum reordering observed in sequence space.
uint32 max_sequence_reordering;
// Maximum reordering observed in microseconds
uint32 max_time_reordering_us;
// The following stats are used only in TcpCubicSender.
// The number of loss events from TCP's perspective. Each loss event includes
// one or more lost packets.
uint32 tcp_loss_events;
// Total amount of cwnd increase by TCPCubic in congestion avoidance.
uint32 cwnd_increase_congestion_avoidance;
// Total amount of cwnd increase by TCPCubic in cubic mode.
uint32 cwnd_increase_cubic_mode;
// Creation time, as reported by the QuicClock.
QuicTime connection_creation_time;
} // namespace net