metrics: unexport ewma.Tick method

metrics/ewma.go

@@ -50,22 +50,22 @@ func (a *EWMA) Snapshot() EWMASnapshot {
 	return EWMASnapshot(r)
 }
 
-// Tick ticks the clock to update the moving average.  It assumes it is called
+// tick ticks the clock to update the moving average.  It assumes it is called
 // every five seconds.
-func (a *EWMA) Tick() {
+func (a *EWMA) tick() {
 	// Optimization to avoid mutex locking in the hot-path.
 	if a.init.Load() {
 		a.updateRate(a.fetchInstantRate())
 		return
 	}
-	// Slow-path: this is only needed on the first Tick() and preserves transactional updating
+	// Slow-path: this is only needed on the first tick() and preserves transactional updating
 	// of init and rate in the else block. The first conditional is needed below because
 	// a different thread could have set a.init = 1 between the time of the first atomic load and when
 	// the lock was acquired.
 	a.mutex.Lock()
 	if a.init.Load() {
 		// The fetchInstantRate() uses atomic loading, which is unnecessary in this critical section
-		// but again, this section is only invoked on the first successful Tick() operation.
+		// but again, this section is only invoked on the first successful tick() operation.
 		a.updateRate(a.fetchInstantRate())
 	} else {
 		a.init.Store(true)

metrics/ewma_test.go

@@ -12,7 +12,7 @@ func BenchmarkEWMA(b *testing.B) {
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		a.Update(1)
-		a.Tick()
+		a.tick()
 	}
 }
 
@@ -23,7 +23,7 @@ func BenchmarkEWMAParallel(b *testing.B) {
 	b.RunParallel(func(pb *testing.PB) {
 		for pb.Next() {
 			a.Update(1)
-			a.Tick()
+			a.tick()
 		}
 	})
 }
@@ -31,7 +31,7 @@ func BenchmarkEWMAParallel(b *testing.B) {
 func TestEWMA1(t *testing.T) {
 	a := NewEWMA1()
 	a.Update(3)
-	a.Tick()
+	a.tick()
 	for i, want := range []float64{0.6,
 		0.22072766470286553, 0.08120116994196772, 0.029872241020718428,
 		0.01098938333324054, 0.004042768199451294, 0.0014872513059998212,
@@ -49,7 +49,7 @@ func TestEWMA1(t *testing.T) {
 func TestEWMA5(t *testing.T) {
 	a := NewEWMA5()
 	a.Update(3)
-	a.Tick()
+	a.tick()
 	for i, want := range []float64{
 		0.6, 0.49123845184678905, 0.4021920276213837, 0.32928698165641596,
 		0.269597378470333, 0.2207276647028654, 0.18071652714732128,
@@ -67,7 +67,7 @@ func TestEWMA5(t *testing.T) {
 func TestEWMA15(t *testing.T) {
 	a := NewEWMA15()
 	a.Update(3)
-	a.Tick()
+	a.tick()
 	for i, want := range []float64{
 		0.6, 0.5613041910189706, 0.5251039914257684, 0.4912384518467888184678905,
 		0.459557003018789, 0.4299187863442732, 0.4021920276213831,
@@ -84,6 +84,6 @@ func TestEWMA15(t *testing.T) {
 
 func elapseMinute(a *EWMA) {
 	for i := 0; i < 12; i++ {
-		a.Tick()
+		a.tick()
 	}
 }

metrics/meter.go

@@ -119,9 +119,9 @@ func (m *Meter) tick() {
 	m.a5.Update(n)
 	m.a15.Update(n)
 	// And trigger them to calculate the rates
-	m.a1.Tick()
-	m.a5.Tick()
-	m.a15.Tick()
+	m.a1.tick()
+	m.a5.tick()
+	m.a15.tick()
 }
 
 var arbiter = meterTicker{meters: make(map[*Meter]struct{})}