add gaussian distribution to the delay

util/helpers.go

@@ -132,8 +132,27 @@ func GetCurrentTimestamp() string {
 	return time.Now().UTC().Format(time.RFC3339)
 }
 
+/*
 func GetRandomLatency(min int, max int) int {
 	return min + rand.Intn(max-min)
+}*/
+
+func GetRandomLatency(min int, max int) int {
+	mean := float64(min+max) / 2
+	// Set the standard deviation so that ~99% of values fall within [min, max]
+	stddev := float64(max-min) / (2.575829 * 2)
+
+	for {
+		// Generate a normally distributed value
+		value := rand.NormFloat64()*stddev + mean
+
+		// Convert to int and check if within bounds
+		latency := int(value)
+		if latency >= min && latency < max {
+			return latency
+		}
+		// Regenerate if out of bounds
+	}
 }
 
 func CompressData(data []byte) ([]byte, error) {