Mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd.git synced 2025-04-28 11:47:48 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

improved congestion control

Browse source
This commit is contained in:
orignal 2024-06-29 09:17:11 -04:00
parent ff8941af71
commit 199d149bed
2 changed files with 154 additions and 43 deletions
Download patch file Download diff file Expand all files Collapse all files

23
libi2pd/Streaming.h
View file

@ -52,15 +52,17 @@ namespace stream
const size_t STREAMING_MTU_RATCHETS = 1812;
const size_t MAX_PACKET_SIZE = 4096;
const size_t COMPRESSION_THRESHOLD_SIZE = 66;
const int MAX_NUM_RESEND_ATTEMPTS = 9;
const int WINDOW_SIZE = 6; // in messages
const int MAX_NUM_RESEND_ATTEMPTS = 10;
const int MAX_STREAM_SPEED = 1730000000; // 1 - 1730000000 // in bytes/sec // no more than 1.73 Gbytes/s
const int MIN_PACING_TIME = 1000000 * STREAMING_MTU / MAX_STREAM_SPEED; // in microseconds
const int INITIAL_WINDOW_SIZE = 10;
const int MIN_WINDOW_SIZE = 1;
const int MAX_WINDOW_SIZE = 128;
const int WINDOW_SIZE_DROP_FRACTION = 10; // 1/10
const double RTT_EWMA_ALPHA = 0.125;
const double RTT_EWMA_ALPHA = 0.9;
const int MIN_RTO = 20; // in milliseconds
const int INITIAL_RTT = 8000; // in milliseconds
const int INITIAL_RTO = 9000; // in milliseconds
const int INITIAL_PACING_TIME = 1000 * INITIAL_RTT / INITIAL_WINDOW_SIZE; // in microseconds
const int MIN_SEND_ACK_TIMEOUT = 2; // in milliseconds
const int SYN_TIMEOUT = 200; // how long we wait for SYN after follow-on, in milliseconds
const size_t MAX_PENDING_INCOMING_BACKLOG = 128;
@ -231,8 +233,11 @@ namespace stream
template<typename Buffer, typename ReceiveHandler>
void HandleReceiveTimer (const boost::system::error_code& ecode, const Buffer& buffer, ReceiveHandler handler, int remainingTimeout);
void ScheduleSend ();
void HandleSendTimer (const boost::system::error_code& ecode);
void ScheduleResend ();
void HandleResendTimer (const boost::system::error_code& ecode);
void ResendPacket ();
void ScheduleAck (int timeout);
void HandleAckSendTimer (const boost::system::error_code& ecode);
@ -242,8 +247,12 @@ namespace stream
uint32_t m_SendStreamID, m_RecvStreamID, m_SequenceNumber;
uint32_t m_TunnelsChangeSequenceNumber;
int32_t m_LastReceivedSequenceNumber;
int32_t m_PreviousReceivedSequenceNumber;
StreamStatus m_Status;
bool m_IsAckSendScheduled;
bool m_IsNAcked;
bool m_IsWinDropped;
bool m_IsTimeOutResend;
StreamingDestination& m_LocalDestination;
std::shared_ptr<const i2p::data::IdentityEx> m_RemoteIdentity;
std::shared_ptr<const i2p::crypto::Verifier> m_TransientVerifier; // in case of offline key
@ -254,14 +263,14 @@ namespace stream
std::queue<Packet *> m_ReceiveQueue;
std::set<Packet *, PacketCmp> m_SavedPackets;
std::set<Packet *, PacketCmp> m_SentPackets;
boost::asio::deadline_timer m_ReceiveTimer, m_ResendTimer, m_AckSendTimer;
boost::asio::deadline_timer m_ReceiveTimer, m_SendTimer, m_ResendTimer, m_AckSendTimer;
size_t m_NumSentBytes, m_NumReceivedBytes;
uint16_t m_Port;
SendBufferQueue m_SendBuffer;
double m_RTT;
int m_WindowSize, m_RTO, m_AckDelay;
uint64_t m_LastWindowSizeIncreaseTime;
int m_WindowSize, m_RTO, m_AckDelay, m_PrewRTTSample, m_PrewRTT, m_Jitter;
uint64_t m_LastWindowSizeIncreaseTime, m_PacingTime;
int m_NumResendAttempts;
size_t m_MTU;
};