add pids, IO stat

metrics/main.go

@@ -9,21 +9,27 @@ import (
 var log = logging.Init()
 
 type Metrics struct {
-	CPUUtil    int
-	NetTx      int64
-	NetRx      int64
-	MemLimit   int64
-	MemPercent int
-	MemUsage   int64
+	CPUUtil      int
+	NetTx        int64
+	NetRx        int64
+	MemLimit     int64
+	MemPercent   int
+	MemUsage     int64
+	IOBytesRead  int64
+	IOBytesWrite int64
+	Pids         int
 }
 
 func NewMetrics() Metrics {
 	return Metrics{
-		CPUUtil:    -1,
-		NetTx:      -1,
-		NetRx:      -1,
-		MemUsage:   -1,
-		MemPercent: -1,
+		CPUUtil:           -1,
+		NetTx:             -1,
+		NetRx:             -1,
+		MemUsage:          -1,
+		MemPercent:        -1,
+		IOBytesRead:       -1,
+		IOBytesWrite:      -1,
+		Pids:              -1,
 	}
 }