示例#1
0
func (_ *SystemStats) Gather(acc telegraf.Accumulator) error {
	loadavg, err := load.Avg()
	if err != nil {
		return err
	}

	hostinfo, err := host.Info()
	if err != nil {
		return err
	}

	users, err := host.Users()
	if err != nil {
		return err
	}

	fields := map[string]interface{}{
		"load1":         loadavg.Load1,
		"load5":         loadavg.Load5,
		"load15":        loadavg.Load15,
		"uptime":        hostinfo.Uptime,
		"n_users":       len(users),
		"uptime_format": format_uptime(hostinfo.Uptime),
		"n_cpus":        runtime.NumCPU(),
	}
	acc.AddFields("system", fields, nil)

	return nil
}
示例#2
0
func loadMetrics(cycle int) []*types.TimeSeriesData {
	cnt, err := load.Avg()
	if err != nil {
		return nil
	}
	ts := time.Now().Unix()
	metrics := make([]*types.TimeSeriesData, 3)

	metrics[0] = &types.TimeSeriesData{
		Metric:    "sys.load1",
		Value:     cnt.Load1,
		Cycle:     cycle,
		Timestamp: ts,
		DataType:  "GAUGE",
	}
	metrics[1] = &types.TimeSeriesData{
		Metric:    "sys.load5",
		Value:     cnt.Load5,
		Cycle:     cycle,
		Timestamp: ts,
		DataType:  "GAUGE",
	}
	metrics[2] = &types.TimeSeriesData{
		Metric:    "sys.load15",
		Value:     cnt.Load15,
		Cycle:     cycle,
		Timestamp: ts,
		DataType:  "GAUGE",
	}
	return metrics
}
示例#3
0
文件: metrics.go 项目: lhchavez/quark
func gaugesUpdate(results runner.BenchmarkResults) {
	if s, err := load.Avg(); err == nil {
		gauges["cpu_load1"].Set(s.Load1)
		gauges["cpu_load5"].Set(s.Load5)
		gauges["cpu_load15"].Set(s.Load15)
	}
	if s, err := mem.VirtualMemory(); err == nil {
		gauges["mem_total"].Set(float64(s.Total))
		gauges["mem_used"].Set(float64(s.Used))
	}
	if s, err := disk.Usage("/"); err == nil {
		gauges["disk_total"].Set(float64(s.Total))
		gauges["disk_used"].Set(float64(s.Used))
	}

	if results != nil {
		gauges["io_time"].Set(results["IO"].Time)
		gauges["io_wall_time"].Set(results["IO"].WallTime)
		gauges["io_memory"].Set(float64(results["IO"].Memory))
		gauges["cpu_time"].Set(results["CPU"].Time)
		gauges["cpu_wall_time"].Set(results["CPU"].WallTime)
		gauges["cpu_memory"].Set(float64(results["CPU"].Memory))
		gauges["memory_time"].Set(results["Memory"].Time)
		gauges["memory_wall_time"].Set(results["Memory"].WallTime)
		gauges["memory_memory"].Set(float64(results["Memory"].Memory))
	}
}
示例#4
0
// GetSystem gets statistics about the system
func GetSystem() *api.SystemStats {
	status := new(api.SystemStats)
	if load, err := load.Avg(); err == nil {
		status.Load = &api.SystemStats_Loadstats{
			Load1:  float32(load.Load1),
			Load5:  float32(load.Load5),
			Load15: float32(load.Load15),
		}
	}
	if cpu, err := cpu.Times(false); err == nil && len(cpu) == 1 {
		status.Cpu = &api.SystemStats_CPUStats{
			User:   float32(cpu[0].User),
			System: float32(cpu[0].System),
			Idle:   float32(cpu[0].Idle),
		}
	}
	if mem, err := mem.VirtualMemory(); err == nil {
		status.Memory = &api.SystemStats_MemoryStats{
			Total:     mem.Total,
			Available: mem.Available,
			Used:      mem.Used,
		}
	}
	return status
}
示例#5
0
文件: load.go 项目: andir/go3status
func GetRenderContext() *load.AvgStat {
	if avg, err := load.Avg(); err == nil {
		return avg
	} else {
		log.Fatal(err)
	}
	return nil
}
示例#6
0
func GetLoadStats() string {
	l, err := load.Avg()
	format := "last1=%f last5=%f last15=%f"
	if err == nil {
		return fmt.Sprintf(format, l.Load1, l.Load5, l.Load15)
	} else {
		return fmt.Sprintf(format, 0, 0, 0)
	}
}
示例#7
0
func getCPULoad() float32 {
	c, err := load.Avg()
	if err != nil {
		log.Printf("ERROR: Unable to get CPU load for the scout.")
		log.Print(err)
	}

	return float32(c.Load5)
}
示例#8
0
func (c *Cpu) populateValues() error {
	load, err := load.Avg()
	if err != nil {
		return err
	}

	c.oneLoad = load.Load1
	c.fiveLoad = load.Load5
	c.fifteenLoad = load.Load15
	return nil
}
示例#9
0
文件: load.go 项目: amonapp/amonagent
// LoadAverage - returns load avg
func LoadAverage() LoadStruct {

	cores, _ := cpu.Counts(true)
	load, _ := load.Avg()

	l := LoadStruct{
		Minute:         load.Load1,
		FiveMinutes:    load.Load5,
		FifteenMinutes: load.Load15,
		Cores:          cores,
	}

	return l
}
示例#10
0
文件: metrics.go 项目: lhchavez/quark
func gaugesUpdate() {
	if s, err := load.Avg(); err == nil {
		gauges["cpu_load1"].Set(s.Load1)
		gauges["cpu_load5"].Set(s.Load5)
		gauges["cpu_load15"].Set(s.Load15)
	}
	if s, err := mem.VirtualMemory(); err == nil {
		gauges["mem_total"].Set(float64(s.Total))
		gauges["mem_used"].Set(float64(s.Used))
	}
	if s, err := disk.Usage("/"); err == nil {
		gauges["disk_total"].Set(float64(s.Total))
		gauges["disk_used"].Set(float64(s.Used))
	}
}
func loadAvg(nss []core.Namespace) ([]plugin.MetricType, error) {
	load, err := load.Avg()
	if err != nil {
		return nil, err
	}

	results := make([]plugin.MetricType, len(nss))

	for i, ns := range nss {
		switch ns.Element(len(ns) - 1).Value {
		case "load1":
			results[i] = plugin.MetricType{
				Namespace_: ns,
				Data_:      load.Load1,
				Unit_:      "Load/1M",
				Timestamp_: time.Now(),
			}
		case "load5":
			results[i] = plugin.MetricType{
				Namespace_: ns,
				Data_:      load.Load5,
				Unit_:      "Load/5M",
				Timestamp_: time.Now(),
			}
		case "load15":
			results[i] = plugin.MetricType{
				Namespace_: ns,
				Data_:      load.Load15,
				Unit_:      "Load/15M",
				Timestamp_: time.Now(),
			}
		default:
			return nil, fmt.Errorf("Requested load statistic %s is not found", ns.Element(len(ns)-1).Value)
		}
	}

	return results, nil
}
示例#12
0
文件: main.go 项目: nak3/rkt
func runRktMonitor(cmd *cobra.Command, args []string) {
	if len(args) != 1 {
		cmd.Usage()
		os.Exit(1)
	}

	d, err := time.ParseDuration(flagDuration)
	if err != nil {
		fmt.Printf("%v\n", err)
		os.Exit(1)
	}

	if os.Getuid() != 0 {
		fmt.Printf("need to be root to run rkt images\n")
		os.Exit(1)
	}

	f, err := os.Open(args[0])
	if err != nil {
		fmt.Printf("%v\n", err)
		os.Exit(1)
	}
	decoder := json.NewDecoder(f)

	podManifest := false
	man := schema.PodManifest{}
	err = decoder.Decode(&man)
	if err == nil {
		podManifest = true
	}

	var flavorType string
	if flagStage1Path == "" {
		flavorType = "stage1-coreos.aci"
	} else {
		_, flavorType = filepath.Split(flagStage1Path)
	}

	var execCmd *exec.Cmd
	var loadAvg *load.AvgStat
	var containerStarting, containerStarted, containerStopping, containerStopped time.Time

	records := [][]string{{"Time", "PID name", "PID number", "RSS", "CPU"}}             // csv headers
	summaryRecords := [][]string{{"Load1", "Load5", "Load15", "StartTime", "StopTime"}} // csv summary headers

	var rktBinary string
	if flagRktDir != "" {
		rktBinary = flagRktDir + "/rkt"
	} else {
		rktBinary = "rkt"
	}

	for i := 0; i < flagRepetitionNumber; i++ {
		containerStarting = time.Now()

		// build argument list for execCmd
		argv := []string{"run"}

		if flagStage1Path != "" {
			argv = append(argv, fmt.Sprintf("--stage1-path=%v", flagStage1Path))
		}

		if podManifest {
			argv = append(argv, "--pod-manifest", args[0])
		} else {
			argv = append(argv, args[0], "--insecure-options=image")
		}
		argv = append(argv, "--net=default-restricted")

		execCmd = exec.Command(rktBinary, argv...)

		if flagShowOutput {
			execCmd.Stdout = os.Stdout
			execCmd.Stderr = os.Stderr
		}

		err = execCmd.Start()
		containerStarted = time.Now()
		if err != nil {
			fmt.Printf("%v\n", err)
			os.Exit(1)
		}

		c := make(chan os.Signal, 1)
		signal.Notify(c, os.Interrupt)
		go func() {
			for range c {
				err := killAllChildren(int32(execCmd.Process.Pid))
				if err != nil {
					fmt.Fprintf(os.Stderr, "cleanup failed: %v\n", err)
				}
				os.Exit(1)
			}
		}()

		usages := make(map[int32][]*ProcessStatus)

		timeToStop := time.Now().Add(d)

		for time.Now().Before(timeToStop) {
			usage, err := getUsage(int32(execCmd.Process.Pid))
			if err != nil {
				panic(err)
			}
			if flagVerbose {
				printUsage(usage)
			}

			if flagSaveToCsv {
				records = addRecords(usage, records)
			}

			for _, ps := range usage {
				usages[ps.Pid] = append(usages[ps.Pid], ps)
			}

			_, err = process.NewProcess(int32(execCmd.Process.Pid))
			if err != nil {
				// process.Process.IsRunning is not implemented yet
				fmt.Fprintf(os.Stderr, "rkt exited prematurely\n")
				break
			}

			time.Sleep(time.Second)
		}

		loadAvg, err = load.Avg()
		if err != nil {
			fmt.Fprintf(os.Stderr, "measure load avg failed: %v\n", err)
		}

		containerStopping = time.Now()
		err = killAllChildren(int32(execCmd.Process.Pid))
		containerStopped = time.Now()
		if err != nil {
			fmt.Fprintf(os.Stderr, "cleanup failed: %v\n", err)
		}

		for _, processHistory := range usages {
			var avgCPU float64
			var avgMem uint64
			var peakMem uint64

			for _, p := range processHistory {
				avgCPU += p.CPU
				avgMem += p.RSS
				if peakMem < p.RSS {
					peakMem = p.RSS
				}
			}

			avgCPU = avgCPU / float64(len(processHistory))
			avgMem = avgMem / uint64(len(processHistory))

			if !flagSaveToCsv {
				fmt.Printf("%s(%d): seconds alive: %d  avg CPU: %f%%  avg Mem: %s  peak Mem: %s\n", processHistory[0].Name, processHistory[0].Pid, len(processHistory), avgCPU, formatSize(avgMem), formatSize(peakMem))
			}
		}

		if flagSaveToCsv {
			summaryRecords = append(summaryRecords, []string{
				strconv.FormatFloat(loadAvg.Load1, 'g', 3, 64),
				strconv.FormatFloat(loadAvg.Load5, 'g', 3, 64),
				strconv.FormatFloat(loadAvg.Load15, 'g', 3, 64),
				strconv.FormatInt(containerStarted.Sub(containerStarting).Nanoseconds(), 10),
				strconv.FormatInt(containerStopped.Sub(containerStopping).Nanoseconds(), 10)})
		}

		fmt.Printf("load average: Load1: %f Load5: %f Load15: %f\n", loadAvg.Load1, loadAvg.Load5, loadAvg.Load15)
		fmt.Printf("container start time: %dns\n", containerStarted.Sub(containerStarting).Nanoseconds())
		fmt.Printf("container stop time: %dns\n", containerStopped.Sub(containerStopping).Nanoseconds())
	}

	t := time.Now()
	prefix := fmt.Sprintf("%d-%02d-%02d_%02d-%02d_%s_", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), flavorType)
	if flagSaveToCsv {
		err = saveRecords(records, flagCsvDir, prefix+"rkt_benchmark_interval.csv")
		if err != nil {
			fmt.Fprintf(os.Stderr, "Can't write to a file: %v\n", err)
		}
		err = saveRecords(summaryRecords, flagCsvDir, prefix+"rkt_benchmark_summary.csv")
		if err != nil {
			fmt.Fprintf(os.Stderr, "Can't write to a summary file: %v\n", err)
		}
	}
}
示例#13
0
文件: main.go 项目: intelsdi-x/rkt
func runRktMonitor(cmd *cobra.Command, args []string) {
	if len(args) != 1 {
		cmd.Usage()
		os.Exit(254)
	}

	d, err := time.ParseDuration(flagDuration)
	if err != nil {
		fmt.Printf("%v\n", err)
		os.Exit(254)
	}

	if os.Getuid() != 0 {
		fmt.Printf("need to be root to run rkt images\n")
		os.Exit(254)
	}

	f, err := os.Open(args[0])
	if err != nil {
		fmt.Printf("%v\n", err)
		os.Exit(254)
	}
	decoder := json.NewDecoder(f)

	podManifest := false
	man := schema.PodManifest{}
	err = decoder.Decode(&man)
	if err == nil {
		podManifest = true
	}

	var flavorType, testImage string
	if flagStage1Path == "" {
		flavorType = "stage1-coreos.aci"
	} else {
		if !fileExist(flagStage1Path) {
			fmt.Fprintln(os.Stderr, "Given stage1 file path doesn't exist")
			os.Exit(254)
		}
		_, flavorType = filepath.Split(flagStage1Path)
	}

	var containerId string
	var stopCmd, execCmd, gcCmd *exec.Cmd
	var loadAvg *load.AvgStat
	var containerStarting, containerStarted, containerStopping, containerStopped time.Time

	records := [][]string{{"Time", "PID name", "PID number", "RSS", "CPU"}}             // csv headers
	summaryRecords := [][]string{{"Load1", "Load5", "Load15", "StartTime", "StopTime"}} // csv summary headers

	var rktBinary string
	if flagRktDir != "" {
		rktBinary = filepath.Join(flagRktDir, "rkt")
		if !fileExist(rktBinary) {
			fmt.Fprintln(os.Stderr, "rkt binary not found!")
			os.Exit(1)
		}
	} else {
		rktBinary = "rkt"
	}

	for i := 0; i < flagRepetitionNumber; i++ {
		// build argument list for execCmd
		argv := []string{"run", "--debug"}

		if flagStage1Path != "" {
			argv = append(argv, fmt.Sprintf("--stage1-path=%v", flagStage1Path))
		}

		if podManifest {
			argv = append(argv, "--pod-manifest", args[0])
		} else {
			argv = append(argv, args[0], "--insecure-options=image")
		}
		argv = append(argv, "--net=default-restricted")

		execCmd = exec.Command(rktBinary, argv...)

		if flagShowOutput {
			execCmd.Stderr = os.Stderr
		}

		cmdReader, err := execCmd.StdoutPipe()
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error creating StdoutPipe for execCmd", err)
			os.Exit(254)
		}

		execCmdScanner := bufio.NewScanner(cmdReader)

		startConfirmation := make(chan string, 1)
		go func() {
			var containerId string
			for execCmdScanner.Scan() {
				if flagShowOutput {
					fmt.Println(execCmdScanner.Text())
				}
				if strings.Contains(execCmdScanner.Text(), "APP-STARTED!") {
					startConfirmation <- containerId
				} else if strings.Contains(execCmdScanner.Text(), "Set hostname to") {
					sl := strings.SplitAfter(execCmdScanner.Text(), "<rkt-")
					containerId = sl[len(sl)-1]
					containerId = containerId[:len(containerId)-2]
				}
			}
		}()
		containerStarting = time.Now()
		err = execCmd.Start()
		containerId = <-startConfirmation
		containerStarted = time.Now() //here we are sure - container is running (issue: #3019)
		close(startConfirmation)

		if flagShowOutput {
			execCmd.Stdout = os.Stdout
		}

		if err != nil {
			fmt.Printf("%v\n", err)
			os.Exit(254)
		}

		usages := make(map[int32][]*ProcessStatus)

		timeToStop := time.Now().Add(d)

		for time.Now().Before(timeToStop) {
			usage, err := getUsage(int32(execCmd.Process.Pid))
			if err != nil {
				panic(err)
			}
			if flagVerbose {
				printUsage(usage)
			}

			if flagSaveToCsv {
				records = addRecords(usage, records)
			}

			for _, ps := range usage {
				usages[ps.Pid] = append(usages[ps.Pid], ps)
			}

			_, err = process.NewProcess(int32(execCmd.Process.Pid))
			if err != nil {
				// process.Process.IsRunning is not implemented yet
				fmt.Fprintf(os.Stderr, "rkt exited prematurely\n")
				break
			}

			time.Sleep(time.Second)
		}

		loadAvg, err = load.Avg()
		if err != nil {
			fmt.Fprintf(os.Stderr, "measure load avg failed: %v\n", err)
		}

		stopCmd = exec.Command(rktBinary, "stop", containerId)

		cmdStopReader, err := stopCmd.StdoutPipe()
		if err != nil {
			fmt.Fprintln(os.Stderr, "Error creating StdoutPipe for stopCmd", err)
			os.Exit(254)
		}
		cmdStopScanner := bufio.NewScanner(cmdStopReader)

		containerStopping = time.Now()
		stopConfirmation := make(chan bool, 1)
		go func() {
			for cmdStopScanner.Scan() {
				if strings.Contains(cmdStopScanner.Text(), containerId) {
					stopConfirmation <- true
					return
				}
			}
			stopConfirmation <- false
		}()
		err = stopCmd.Start()
		if !<-stopConfirmation {
			fmt.Println("WARNING: There was a problem stopping the container! (Container already stopped?)")
		}
		containerStopped = time.Now()
		close(stopConfirmation)

		if err != nil {
			fmt.Printf("%v\n", err)
			os.Exit(254)
		}

		gcCmd = exec.Command(rktBinary, "gc", "--grace-period=0")
		gcCmd.Start()

		for _, processHistory := range usages {
			var avgCPU float64
			var avgMem uint64
			var peakMem uint64

			for _, p := range processHistory {
				avgCPU += p.CPU
				avgMem += p.RSS
				if peakMem < p.RSS {
					peakMem = p.RSS
				}
			}

			avgCPU = avgCPU / float64(len(processHistory))
			avgMem = avgMem / uint64(len(processHistory))

			if !flagSaveToCsv {
				fmt.Printf("%s(%d): seconds alive: %d  avg CPU: %f%%  avg Mem: %s  peak Mem: %s\n", processHistory[0].Name, processHistory[0].Pid, len(processHistory), avgCPU, formatSize(avgMem), formatSize(peakMem))
			}
		}

		if flagSaveToCsv {
			summaryRecords = append(summaryRecords, []string{
				strconv.FormatFloat(loadAvg.Load1, 'g', 3, 64),
				strconv.FormatFloat(loadAvg.Load5, 'g', 3, 64),
				strconv.FormatFloat(loadAvg.Load15, 'g', 3, 64),
				strconv.FormatFloat(float64(containerStarted.Sub(containerStarting).Nanoseconds())/float64(time.Millisecond), 'g', -1, 64),
				strconv.FormatFloat(float64(containerStopped.Sub(containerStopping).Nanoseconds())/float64(time.Millisecond), 'g', -1, 64)})
		}

		fmt.Printf("load average: Load1: %f Load5: %f Load15: %f\n", loadAvg.Load1, loadAvg.Load5, loadAvg.Load15)
		fmt.Printf("container start time: %sms\n", strconv.FormatFloat(float64(containerStarted.Sub(containerStarting).Nanoseconds())/float64(time.Millisecond), 'g', -1, 64))
		fmt.Printf("container stop time: %sms\n", strconv.FormatFloat(float64(containerStopped.Sub(containerStopping).Nanoseconds())/float64(time.Millisecond), 'g', -1, 64))
	}

	t := time.Now()
	_, testImage = filepath.Split(args[0])
	prefix := fmt.Sprintf("%d-%02d-%02d_%02d-%02d_%s_%s", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), flavorType, testImage)
	if flagSaveToCsv {
		err = saveRecords(records, flagCsvDir, prefix+"_rkt_benchmark_interval.csv")
		if err != nil {
			fmt.Fprintf(os.Stderr, "Can't write to a file: %v\n", err)
		}
		err = saveRecords(summaryRecords, flagCsvDir, prefix+"_rkt_benchmark_summary.csv")
		if err != nil {
			fmt.Fprintf(os.Stderr, "Can't write to a summary file: %v\n", err)
		}
	}
}