@@ -24,6 +24,7 @@ func newStatsCollector(interval time.Duration) *statsCollector {

 		interval:   interval,

 		publishers: make(map[*Container]*pubsub.Publisher),

 		clockTicks: uint64(system.GetClockTicks()),

+		bufReader:  bufio.NewReaderSize(nil, 128),

 	}

 	go s.run()

 	return s

@@ -35,6 +36,7 @@ type statsCollector struct {

 	interval   time.Duration

 	clockTicks uint64

 	publishers map[*Container]*pubsub.Publisher

+	bufReader  *bufio.Reader

 }

 // collect registers the container with the collector and adds it to

@@ -121,14 +123,23 @@ const nanoSeconds = 1e9

 // getSystemCpuUSage returns the host system's cpu usage in nanoseconds

 // for the system to match the cgroup readings are returned in the same format.

 func (s *statsCollector) getSystemCpuUsage() (uint64, error) {

+	var line string

 	f, err := os.Open("/proc/stat")

 	if err != nil {

 		return 0, err

 	}

-	defer f.Close()

-	sc := bufio.NewScanner(f)

-	for sc.Scan() {

-		parts := strings.Fields(sc.Text())

+	defer func() {

+		s.bufReader.Reset(nil)

+		f.Close()

+	}()

+	s.bufReader.Reset(f)

+	err = nil

+	for err == nil {

+		line, err = s.bufReader.ReadString('\n')

+		if err != nil {

+			break

+		}

+		parts := strings.Fields(line)

 		switch parts[0] {

 		case "cpu":

 			if len(parts) < 8 {