eth/protocols, metrics: use resetting histograms for rare packets

2021-03-26 16:14:12 +02:00
parent efe0229768
commit 2550e46269
3 changed files with 34 additions and 2 deletions
--- a/eth/protocols/snap/handler.go
+++ b/eth/protocols/snap/handler.go
@ -134,7 +134,11 @@ func handleMessage(backend Backend, peer *Peer) error {
 	if metrics.Enabled {
 		h := fmt.Sprintf("%s/%s/%d/%#02x", p2p.HandleHistName, ProtocolName, peer.Version(), msg.Code)
 		defer func(start time.Time) {
-			sampler := func() metrics.Sample { return metrics.NewExpDecaySample(1028, 0.015) }
+			sampler := func() metrics.Sample {
+				return metrics.ResettingSample(
+					metrics.NewExpDecaySample(1028, 0.015),
+				)
+			}
 			metrics.GetOrRegisterHistogramLazy(h, nil, sampler).Update(time.Since(start).Microseconds())
 		}(time.Now())
 	}