рабочий вариант, но скороть 10 МБит

agents/rap-node-agent/internal/fabricproto/session.go

@@ -8,6 +8,7 @@ import (
 
 const (
 	DefaultInitialStreamCredit = 32
+	DefaultMaxStreamCredit     = 4096
 )
 
 var (
@@ -29,6 +30,7 @@ const (
 
 type SessionConfig struct {
 	InitialStreamCredit int
+	MaxStreamCredit     int
 	ClassQueueCapacity  map[TrafficClass]int
 }
 
@@ -188,6 +190,7 @@ func (s *Session) Ack(streamID uint64, sequence uint64) error {
 		delta := sequence - st.metrics.Acked
 		st.metrics.Acked = sequence
 		s.metrics.FramesAcked += delta
+		st.credit = minInt(st.credit+int(delta), s.cfg.MaxStreamCredit)
 	}
 	return nil
 }
@@ -205,7 +208,7 @@ func (s *Session) AddCredit(streamID uint64, frames int) error {
 	if st.state != StreamStateOpen {
 		return ErrStreamClosed
 	}
-	st.credit += frames
+	st.credit = minInt(st.credit+frames, s.cfg.MaxStreamCredit)
 	return nil
 }
 
@@ -311,6 +314,12 @@ func normalizeSessionConfig(cfg SessionConfig) SessionConfig {
 	if cfg.InitialStreamCredit <= 0 {
 		cfg.InitialStreamCredit = DefaultInitialStreamCredit
 	}
+	if cfg.MaxStreamCredit <= 0 {
+		cfg.MaxStreamCredit = maxInt(DefaultMaxStreamCredit, cfg.InitialStreamCredit)
+	}
+	if cfg.InitialStreamCredit > cfg.MaxStreamCredit {
+		cfg.InitialStreamCredit = cfg.MaxStreamCredit
+	}
 	if cfg.ClassQueueCapacity == nil {
 		cfg.ClassQueueCapacity = map[TrafficClass]int{}
 	}
@@ -331,14 +340,28 @@ func priorityOrder() []TrafficClass {
 func defaultClassQueueCapacity(trafficClass TrafficClass) int {
 	switch trafficClass {
 	case TrafficClassControl, TrafficClassDNS, TrafficClassInteractive:
-		return 128
+		return 1024
 	case TrafficClassReliable:
-		return 64
+		return 512
 	case TrafficClassBulk:
-		return 16
+		return 256
 	case TrafficClassDroppable:
-		return 8
+		return 128
 	default:
-		return 32
+		return 256
 	}
 }
+
+func minInt(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+func maxInt(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}