include duration's unit in printed metrics

log.go

@@ -13,6 +13,7 @@ func Log(r Registry, freq time.Duration, l *log.Logger) {
 // logger. Print timings in `scale` units (eg time.Millisecond) rather than nanos.
 func LogScaled(r Registry, freq time.Duration, scale time.Duration, l *log.Logger) {
 	du := float64(scale)
+	duSuffix := scale.String()[1:]
 
 	for _ = range time.Tick(freq) {
 		r.Each(func(name string, i interface{}) {
@@ -57,15 +58,15 @@ func LogScaled(r Registry, freq time.Duration, scale time.Duration, l *log.Logge
 				ps := t.Percentiles([]float64{0.5, 0.75, 0.95, 0.99, 0.999})
 				l.Printf("timer %s\n", name)
 				l.Printf("  count:       %9d\n", t.Count())
-				l.Printf("  min:         %12.2f\n", float64(t.Min())/du)
-				l.Printf("  max:         %12.2f\n", float64(t.Max())/du)
-				l.Printf("  mean:        %12.2f\n", t.Mean()/du)
-				l.Printf("  stddev:      %12.2f\n", t.StdDev()/du)
-				l.Printf("  median:      %12.2f\n", ps[0]/du)
-				l.Printf("  75%%:         %12.2f\n", ps[1]/du)
-				l.Printf("  95%%:         %12.2f\n", ps[2]/du)
-				l.Printf("  99%%:         %12.2f\n", ps[3]/du)
-				l.Printf("  99.9%%:       %12.2f\n", ps[4]/du)
+				l.Printf("  min:         %12.2f%s\n", float64(t.Min())/du, duSuffix)
+				l.Printf("  max:         %12.2f%s\n", float64(t.Max())/du, duSuffix)
+				l.Printf("  mean:        %12.2f%s\n", t.Mean()/du, duSuffix)
+				l.Printf("  stddev:      %12.2f%s\n", t.StdDev()/du, duSuffix)
+				l.Printf("  median:      %12.2f%s\n", ps[0]/du, duSuffix)
+				l.Printf("  75%%:         %12.2f%s\n", ps[1]/du, duSuffix)
+				l.Printf("  95%%:         %12.2f%s\n", ps[2]/du, duSuffix)
+				l.Printf("  99%%:         %12.2f%s\n", ps[3]/du, duSuffix)
+				l.Printf("  99.9%%:       %12.2f%s\n", ps[4]/du, duSuffix)
 				l.Printf("  1-min rate:  %12.2f\n", t.Rate1())
 				l.Printf("  5-min rate:  %12.2f\n", t.Rate5())
 				l.Printf("  15-min rate: %12.2f\n", t.Rate15())