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adjust parameters in resend and early retransmit

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xtaci
2016-12-22 15:10:15 +08:00
parent a67e3a7cf5
commit c187addd21
1 changed files with 10 additions and 7 deletions
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kcp.go
+10 -7
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@@ -756,15 +756,18 @@ func (kcp *KCP) flush() {
lost = true
lostSegs++
} else if segment.fastack >= resent {
needsend = true
segment.xmit++
segment.fastack = 0
segment.resendts = current + segment.rto
change++
fastRetransSegs++
lastsend := segment.resendts - segment.rto
if _itimediff(current, lastsend) >= int32(kcp.rx_srtt) { // rtt
needsend = true
segment.xmit++
segment.fastack = 0
segment.resendts = current + segment.rto
change++
fastRetransSegs++
}
} else if segment.fastack > 0 && !hasPending { // early retransmit
lastsend := segment.resendts - segment.rto
if _itimediff(current, lastsend) > int32(kcp.rx_rto/4) { // 1/4 rtt
if _itimediff(current, lastsend) >= int32(kcp.rx_srtt) { // 1/4 rtt
needsend = true
segment.xmit++
segment.fastack = 0