Support Processor & Aggregator Plugins

closes #1726

plugins/aggregators/minmax/minmax_test.go

@@ -0,0 +1,51 @@
+package minmax
+
+import (
+	"testing"
+	"time"
+
+	"github.com/influxdata/telegraf"
+)
+
+func BenchmarkApply(b *testing.B) {
+	minmax := MinMax{}
+	minmax.clearCache()
+
+	m1, _ := telegraf.NewMetric("m1",
+		map[string]string{"foo": "bar"},
+		map[string]interface{}{
+			"a": int64(1),
+			"b": int64(1),
+			"c": int64(1),
+			"d": int64(1),
+			"e": int64(1),
+			"f": float64(2),
+			"g": float64(2),
+			"h": float64(2),
+			"i": float64(2),
+			"j": float64(3),
+		},
+		time.Now(),
+	)
+	m2, _ := telegraf.NewMetric("m1",
+		map[string]string{"foo": "bar"},
+		map[string]interface{}{
+			"a": int64(3),
+			"b": int64(3),
+			"c": int64(3),
+			"d": int64(3),
+			"e": int64(3),
+			"f": float64(1),
+			"g": float64(1),
+			"h": float64(1),
+			"i": float64(1),
+			"j": float64(1),
+		},
+		time.Now(),
+	)
+
+	for n := 0; n < b.N; n++ {
+		minmax.apply(m1)
+		minmax.apply(m2)
+	}
+}