avoid allocating for interface conversions on clear

e9e2aa6a · Steven Allen · 42df1851 · e9e2aa6a
Commit e9e2aa6a authored Oct 31, 2019 by Steven Allen
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registry.go registry.go +3 -2

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--- a/registry.go
+++ b/registry.go
@@ -75,7 +75,8 @@ func (r *MeterRegistry) ForEach(iterFunc func(string, *Meter)) {
 // Clear removes all meters from the registry.
 func (r *MeterRegistry) Clear() {
-	r.ForEach(func(name string, _meter *Meter) {
+	r.meters.Range(func(k, v interface{}) bool {
-		r.Remove(name)
+		r.meters.Delete(k)
+		return true
 	})
 }