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tune RTT calculations

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Vort 2024-03-15 09:06:33 +02:00
parent 5412e29ff5
commit d74033dd2b
4 changed files with 15 additions and 8 deletions
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7
libi2pd/SSU2Session.cpp
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@ -85,7 +85,7 @@ namespace transport
m_DestConnID (0), m_SourceConnID (0), m_State (eSSU2SessionStateUnknown),
m_SendPacketNum (0), m_ReceivePacketNum (0), m_LastDatetimeSentPacketNum (0),
m_IsDataReceived (false), m_WindowSize (SSU2_MIN_WINDOW_SIZE),
m_RTT (SSU2_RESEND_INTERVAL), m_RTO (SSU2_RESEND_INTERVAL*SSU2_kAPPA), m_RelayTag (0),
m_RTT (SSU2_UNKNOWN_RTT), m_RTO (SSU2_INITIAL_RTO), m_RelayTag (0),
m_ConnectTimer (server.GetService ()), m_TerminationReason (eSSU2TerminationReasonNormalClose),
m_MaxPayloadSize (SSU2_MIN_PACKET_SIZE - IPV6_HEADER_SIZE - UDP_HEADER_SIZE - 32) // min size
{
@ -1753,7 +1753,10 @@ namespace transport
if (ts > it1->second->sendTime)
{
auto rtt = ts - it1->second->sendTime;
m_RTT = std::round ((m_RTT*m_SendPacketNum + rtt)/(m_SendPacketNum + 1.0));
if (m_RTT != SSU2_UNKNOWN_RTT)
m_RTT = SSU2_RTT_EWMA_ALPHA * rtt + (1.0 - SSU2_RTT_EWMA_ALPHA) * m_RTT;
else
m_RTT = rtt;
m_RTO = m_RTT*SSU2_kAPPA;
if (m_RTO < SSU2_MIN_RTO) m_RTO = SSU2_MIN_RTO;
if (m_RTO > SSU2_MAX_RTO) m_RTO = SSU2_MAX_RTO;