1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_QUIC_QUIC_CONNECTION_STATS_H_ 6 #define NET_QUIC_QUIC_CONNECTION_STATS_H_ 7 8 #include <ostream> 9 10 #include "base/basictypes.h" 11 #include "net/base/net_export.h" 12 #include "net/quic/quic_time.h" 13 14 namespace net { 15 // Structure to hold stats for a QuicConnection. 16 struct NET_EXPORT_PRIVATE QuicConnectionStats { 17 QuicConnectionStats(); 18 ~QuicConnectionStats(); 19 20 NET_EXPORT_PRIVATE friend std::ostream& operator<<( 21 std::ostream& os, const QuicConnectionStats& s); 22 23 uint64 bytes_sent; // Includes retransmissions, fec. 24 uint32 packets_sent; 25 uint64 stream_bytes_sent; // non-retransmitted bytes sent in a stream frame. 26 uint32 packets_discarded; // Packets serialized and discarded before sending. 27 28 // These include version negotiation and public reset packets, which do not 29 // have sequence numbers or frame data. 30 uint64 bytes_received; // Includes duplicate data for a stream, fec. 31 uint32 packets_received; // Includes packets which were not processable. 32 uint32 packets_processed; // Excludes packets which were not processable. 33 uint64 stream_bytes_received; // Bytes received in a stream frame. 34 35 uint64 bytes_retransmitted; 36 uint32 packets_retransmitted; 37 38 uint64 bytes_spuriously_retransmitted; 39 uint32 packets_spuriously_retransmitted; 40 // Number of packets abandoned as lost by the loss detection algorithm. 41 uint32 packets_lost; 42 uint32 slowstart_packets_lost; // Number of packets lost exiting slow start. 43 44 uint32 packets_revived; 45 uint32 packets_dropped; // Duplicate or less than least unacked. 46 uint32 crypto_retransmit_count; 47 // Count of times the loss detection alarm fired. At least one packet should 48 // be lost when the alarm fires. 49 uint32 loss_timeout_count; 50 uint32 tlp_count; 51 uint32 rto_count; // Count of times the rto timer fired. 52 53 uint32 min_rtt_us; // Minimum RTT in microseconds. 54 uint32 srtt_us; // Smoothed RTT in microseconds. 55 uint32 max_packet_size; // In bytes. 56 uint64 estimated_bandwidth; // In bytes per second. 57 uint32 congestion_window; // In bytes 58 59 // Reordering stats for received packets. 60 // Number of packets received out of sequence number order. 61 uint32 packets_reordered; 62 // Maximum reordering observed in sequence space. 63 uint32 max_sequence_reordering; 64 // Maximum reordering observed in microseconds 65 uint32 max_time_reordering_us; 66 67 // The following stats are used only in TcpCubicSender. 68 // The number of loss events from TCP's perspective. Each loss event includes 69 // one or more lost packets. 70 uint32 tcp_loss_events; 71 // Total amount of cwnd increase by TCPCubic in congestion avoidance. 72 uint32 cwnd_increase_congestion_avoidance; 73 // Total amount of cwnd increase by TCPCubic in cubic mode. 74 uint32 cwnd_increase_cubic_mode; 75 76 // Creation time, as reported by the QuicClock. 77 QuicTime connection_creation_time; 78 }; 79 80 } // namespace net 81 82 #endif // NET_QUIC_QUIC_CONNECTION_STATS_H_ 83
