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Streaming congestion control improvements. Patch by onon

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orignal 2024-08-01 13:49:32 -04:00
parent efd754eb93
commit 42782944fb
2 changed files with 132 additions and 61 deletions
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20
libi2pd/Streaming.h
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@ -55,19 +55,19 @@ namespace stream
const int MAX_NUM_RESEND_ATTEMPTS = 10;
const int INITIAL_WINDOW_SIZE = 10;
const int MIN_WINDOW_SIZE = 1;
const int MAX_WINDOW_SIZE = 128;
const double RTT_EWMA_ALPHA = 0.8;
const int MAX_WINDOW_SIZE = 1024;
const double RTT_EWMA_ALPHA = 0.125;
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;
const size_t MAX_PENDING_INCOMING_BACKLOG = 1024;
const int PENDING_INCOMING_TIMEOUT = 10; // in seconds
const int MAX_RECEIVE_TIMEOUT = 20; // in seconds
const uint16_t DELAY_CHOKING = 60000; // in milliseconds
const uint64_t MIN_PACING_TIME = 250; // in microseconds. TODO: depends on OS
const uint64_t SEND_INTERVAL = 1000; // in microseconds
struct Packet
{
@ -252,6 +252,9 @@ namespace stream
StreamStatus m_Status;
bool m_IsAckSendScheduled;
bool m_IsNAcked;
bool m_IsFirstACK;
bool m_IsResendNeeded;
bool m_IsFirstRttSample;
bool m_IsSendTime;
bool m_IsWinDropped;
bool m_IsTimeOutResend;
@ -270,10 +273,11 @@ namespace stream
uint16_t m_Port;
SendBufferQueue m_SendBuffer;
double m_RTT;
int m_WindowSize, m_RTO, m_AckDelay, m_PrevRTTSample, m_PrevRTT, m_Jitter;
uint64_t m_MinPacingTime, m_PacingTime; // miscroseconds
int m_NumResendAttempts;
double m_RTT, m_SlowRTT;
float m_WindowSize, m_LastWindowDropSize;
int m_WindowIncCounter, m_RTO, m_AckDelay, m_PrevRTTSample, m_PrevRTT, m_Jitter;
uint64_t m_MinPacingTime, m_PacingTime, m_PacingTimeRem, m_DropWindowDelayTime, m_LastSendTime; // microseconds
int m_NumResendAttempts, m_NumPacketsToSend;
size_t m_MTU;
};