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Merge pull request #973 from apernet/fix-cwnd-undersize

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fix: cwnd undersize in extremely-low rtt scenarios
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Toby 2024-03-11 14:47:08 -07:00 • committed by GitHub
commit 16ec4550c3
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1 changed files with 6 additions and 2 deletions
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8
core/internal/congestion/brutal/brutal.go
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@ -69,7 +69,7 @@ func (b *BrutalSender) HasPacingBudget(now time.Time) bool {
}
func (b *BrutalSender) CanSend(bytesInFlight congestion.ByteCount) bool {
return bytesInFlight < b.GetCongestionWindow()
return bytesInFlight <= b.GetCongestionWindow()
}
func (b *BrutalSender) GetCongestionWindow() congestion.ByteCount {
@ -77,7 +77,11 @@ func (b *BrutalSender) GetCongestionWindow() congestion.ByteCount {
if rtt <= 0 {
return 10240
}
return congestion.ByteCount(float64(b.bps) * rtt.Seconds() * congestionWindowMultiplier / b.ackRate)
cwnd := congestion.ByteCount(float64(b.bps) * rtt.Seconds() * congestionWindowMultiplier / b.ackRate)
if cwnd < b.maxDatagramSize {
cwnd = b.maxDatagramSize
}
return cwnd
}
func (b *BrutalSender) OnPacketSent(sentTime time.Time, bytesInFlight congestion.ByteCount,