Update buckets.go

lib/metrics/buckets.go

 package metrics
 
-var bucketsUs = []float64{1000, 3000, 5000, 10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000, 100000, 150000, 300000, 500000, 5000000, 10000000, 30000000, 45000000, 60000000}
+var bucketsUs = []float64{1000, 3000, 5000, 10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000, 100000, 150000, 300000, 500000, 5000000, 10000000, 30000000, 45000000, 60000000, 75000000, 100000000, 125000000, 150000000, 200000000, 250000000}
 
 // var requestDurationHistBucketNs = []float64{1000000, 3000000, 5000000, 10000000, 20000000, 30000000, 40000000, 50000000, 60000000, 70000000, 80000000, 90000000, 100000000, 150000000, 300000000, 500000000, 5000000000, 10000000000, 30000000000, 45000000000, 60000000000}
 // var bucketsNs = []float64{100000, 300000, 500000, 1000000, 2000000, 3000000, 4000000, 5000000, 6000000, 7000000, 8000000, 9000000, 10000000, 15000000, 30000000, 50000000, 500000000, 1000000000, 3000000000, 4500000000, 6000000000}