Score VPN scheduler pressure

2026-05-16 13:26:07 +03:00
parent db75e1baed
commit f9ff0a4631
3 changed files with 33 additions and 8 deletions
@@ -253,6 +253,7 @@ type FabricFlowSchedulerSnapshot struct {
 	HighWatermark              int                       `json:"high_watermark"`
 	BackpressureActive         bool                      `json:"backpressure_active"`
 	PressureLevel              string                    `json:"pressure_level,omitempty"`
+	PressureScore              int                       `json:"pressure_score,omitempty"`
 	PressureReasons            []string                  `json:"pressure_reasons,omitempty"`
 	InFlight                   int                       `json:"in_flight"`
 	MaxInFlight                int                       `json:"max_in_flight"`
@@ -862,12 +863,13 @@ func (s *FabricFlowScheduler) Snapshot() FabricFlowSchedulerSnapshot {
 			snapshot.AdaptiveBackpressureReason = "bulk_window_reduced_to_protect_interactive"
 		}
 	}
-	snapshot.PressureLevel, snapshot.PressureReasons = fabricFlowSchedulerPressure(snapshot)
+	snapshot.PressureLevel, snapshot.PressureScore, snapshot.PressureReasons = fabricFlowSchedulerPressure(snapshot)
 	return snapshot
 }

-func fabricFlowSchedulerPressure(snapshot FabricFlowSchedulerSnapshot) (string, []string) {
+func fabricFlowSchedulerPressure(snapshot FabricFlowSchedulerSnapshot) (string, int, []string) {
 	level := "nominal"
+	score := 0
 	reasons := []string{}
 	addReason := func(reason string) {
 		reason = strings.TrimSpace(reason)
@@ -888,33 +890,43 @@ func fabricFlowSchedulerPressure(snapshot FabricFlowSchedulerSnapshot) (string,
 	}
 	if snapshot.Dropped > 0 || snapshot.QualityWindowDropCount > 0 {
 		escalate("critical")
+		score += boundedFabricPressureScore(int(snapshot.Dropped)+snapshot.QualityWindowDropCount*10, 20, 40)
 		addReason("drops")
 	}
 	if snapshot.FailingChannelCount > 0 || snapshot.QualityWindowFailureCount > 0 {
 		escalate("critical")
+		score += boundedFabricPressureScore((snapshot.FailingChannelCount+snapshot.QualityWindowFailureCount)*10, 20, 40)
 		addReason("route_failures")
 	}
 	if snapshot.RouteRecoveredChannelCount > 0 || snapshot.RouteSwitchCount > 0 {
 		escalate("warning")
+		score += boundedFabricPressureScore(snapshot.RouteRecoveredChannelCount*8+int(snapshot.RouteSwitchCount)*4, 8, 24)
 		addReason("route_recovery")
 	}
 	if snapshot.SlowChannelCount > 0 || snapshot.QualityWindowSlowCount > 0 {
 		escalate("warning")
+		score += boundedFabricPressureScore((snapshot.SlowChannelCount+snapshot.QualityWindowSlowCount)*6, 6, 24)
 		addReason("slow_channels")
 	}
 	if snapshot.BulkPressureActive {
 		escalate("warning")
+		score += 15
 		addReason("bulk_pressure")
 	}
 	if snapshot.AdaptiveBackpressureActive {
 		escalate("warning")
+		score += 10
 		addReason(snapshot.AdaptiveBackpressureReason)
 	}
 	if snapshot.BackpressureActive {
 		escalate("warning")
+		score += 10
 		addReason("backpressure")
 	}
-	return level, reasons
+	if score > 100 {
+		score = 100
+	}
+	return level, score, reasons
 }

 func flowPressureRank(level string) int {
@@ -928,6 +940,16 @@ func flowPressureRank(level string) int {
 	}
 }

+func boundedFabricPressureScore(value, minValue, maxValue int) int {
+	if value < minValue {
+		return minValue
+	}
+	if value > maxValue {
+		return maxValue
+	}
+	return value
+}
+
 func (s *FabricFlowScheduler) recommendedParallelSendWindowForTrafficClassLocked(trafficClass string, maxWindow int) int {
 	if maxWindow <= 1 {
 		return 1