satellite/metabase/rangedloop: save observer durations to eventkit

Change-Id: I2d027cd7f7421e2c38dcc1277d640d4183af4cec

satellite/metabase/rangedloop/observerstats.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"sync"
 
+	"github.com/jtolio/eventkit"
 	"github.com/spacemonkeygo/monkit/v3"
 )
 
@@ -16,6 +17,12 @@ var (
 )
 
 func sendObserverDurations(observerDurations []ObserverDuration) {
+	for _, od := range observerDurations {
+		ev.Event("rangedloop",
+			eventkit.String("observer", fmt.Sprintf("%T", od.Observer)),
+			eventkit.Duration("duration", od.Duration))
+	}
+
 	completedObserverStatsInstance.setObserverDurations(observerDurations)
 	completedObserverStatsInstanceInitOnce.Do(func() {
 		mon.Chain(&completedObserverStatsInstance)

satellite/metabase/rangedloop/service.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/jtolio/eventkit"
 	"github.com/spacemonkeygo/monkit/v3"
 	"github.com/zeebo/errs"
 	"go.uber.org/zap"
@@ -19,6 +20,7 @@ import (
 
 var (
 	mon = monkit.Package()
+	ev  = eventkit.Package()
 )
 
 // Config contains configurable values for the shared loop.