Esempio n. 1
0
func main() {
	tm.Clear()
	tm.MoveCursor(0, 0)

	chart := tm.NewLineChart(100, 20)
	data := new(tm.DataTable)
	data.AddColumn("Time")
	data.AddColumn("Sin(x)")
	data.AddColumn("Cos(x+1)")

	for i := 0.1; i < 10; i += 0.1 {
		data.AddRow(i, math.Sin(i), math.Cos(i+1))
	}

	tm.Println(chart.Draw(data))
	tm.Flush()
}
Esempio n. 2
0
func main() {
	var (
		errCh        = make(chan error, 16)
		receivedCh   = make(chan int, 1024)
		sentCh       = make(chan int, 1024)
		sent         = 0
		lastSent     = 0
		received     = 0
		lastReceived = 0
	)

	// read params (server address:port, qos settings, number of publishers, number of subscribers)
	flag.Parse()

	// generate topics in advance, so we can run the subscribers before starting to publish
	for i := 0; i < *numTop; i++ {
		newTopic()
	}

	//
	// subscribe to topics
	//

	// TODO: multiple subscribers.

	// initialise a timeout (if no messages are received in the given time since the last publish.)
	timeout := time.NewTimer(10 * time.Second)
	resetSubTimeout := func() {
		timeout.Reset(time.Duration(*subTimeout) * time.Second)
	}

	// discarding received messages
	messageHandler := func(client *mqtt.Client, m mqtt.Message) {
		if string(m.Payload()) == "hello world" {
			receivedCh <- 1
			resetSubTimeout() // reset timeout
		}
	}

	// prepare filter from topics and qos
	filters := map[string]byte{}
	for _, topic := range getTopics() {
		fmt.Printf("Created topic %s with qos %v\n", topic, *qos)
		filters[topic] = byte(*qos)
	}

	// multisubscribers
	fmt.Println("Connecting subscribers...")

	for i := 0; i < *numSub; i++ {
		subscriber := newClient()
		if token := subscriber.client.Connect(); token.Wait() && token.Error() != nil {
			errCh <- token.Error()
		}

		defer subscriber.client.Disconnect(250)

		token := subscriber.client.SubscribeMultiple(filters, messageHandler)
		if token.Wait() && token.Error() != nil {
			errCh <- token.Error()
		}

	}

	//
	// Publish to topics
	//

	// set value for timeout
	timeout = time.NewTimer(time.Duration(*subTimeout) * time.Second)

	go func() {
		for {
			select {
			case <-timeout.C:
				errCh <- fmt.Errorf("Subscriber timeout.. no more messages?")
			}
		}
	}()

	// publishers
	for i := 0; i < *numPub; i++ {
		go func() {
			c := newClient()
			if token := c.client.Connect(); token.Wait() && token.Error() != nil {
				errCh <- token.Error()
			}

			defer c.client.Disconnect(100)

			// publish (sequential per client)
			topics := getTopics()
			for k := 0; k < *numMessages; k++ {
				topic := topics[k%len(topics)]
				token := c.client.Publish(topic, byte(*qos), *retained, "hello world")
				if token.Wait() && token.Error() != nil {
					errCh <- token.Error()
				}
				sentCh <- 1
				time.Sleep(time.Duration(*pubDelay) * time.Millisecond)
			}
		}()
	}

	// creating fancy output
	// start := time.Now()
	redraw := time.NewTicker(100 * time.Millisecond)
	if *nograph {
		redraw = time.NewTicker(1 * time.Second)
	}
	row := 0.0

	// table
	data := new(tm.DataTable)
	data.AddColumn("Time (sec)")
	data.AddColumn("Sent")
	data.AddColumn("Received")

	for {
		select {
		case <-redraw.C:
			if !*nograph {
				tm.Clear()
				tm.Printf("[Published : Received]: [%v : %v]\n\n", sent, received)
				row += 1.0
				data.AddRow(row/10.0, float64(sent), float64(received))
				tm.Print(tm.NewLineChart(tm.Width()-4, tm.Height()-6).Draw(data))
				tm.Flush()
			} else {
				if sent != lastSent || received != lastReceived {
					fmt.Printf("[Published : Received]: [%v : %v]\n", sent, received)
					lastSent, lastReceived = sent, received
				}
			}

		case e := <-errCh:
			fmt.Println(e.Error())
			return
		case s := <-sentCh:
			sent += s
		case r := <-receivedCh:
			received += r
		}
	}
}
Esempio n. 3
0
func StatQueue(writeQ bool) error {

	var myresults results
	var wg sync.WaitGroup
	for id, sl := range record.RecordByThread {
		wg.Add(1)
		go func(tid string, rs []*record.Record) {

			defer wg.Done()

			for _, r := range rs {

				if !window.InCurrentWindow(r.Time) {
					continue
				}

				if len(r.Raw) < 151 {
					continue
				}
				txt := strings.Split(r.Raw[60:150], ">")
				if len(txt) < 2 {
					continue
				}
				tokens := strings.Split(txt[1], " ") // 60:140 to limit the scope of search, with reasonable margins
				if len(tokens) < 3 {
					continue
				}

				if writeQ {
					if ((tokens[1] == "Queue") && (tokens[2] == "command")) ||
						((tokens[1] == "Dequeue") && (tokens[2] == "and") && (tokens[3] == "execute")) {
						//2015/08/04 15:19:59.904847 magap302 masterag-11298 MDW INFO <SEI_MAAdminSequence.cpp#223 TID#13> Queue command 0x2aacbf979400 [Command#14015: kSEIBELibLoaded : BE->MAG:Notify the Master Agent that a lib has been loaded (version 1)^@] (from BENT0UCL4VXODY to masterag); Command sequence queue size: 0
						backToken := strings.Split(r.Raw[len(r.Raw)-40:len(r.Raw)], " ")
						last := len(backToken) - 1
						txt1 := strings.Join(backToken[last-2:last], " ")
						if txt1 == "queue size:" {
							if s, err := strconv.Atoi(backToken[last]); err == nil {
								myresults.Lock()
								myresults.HasRecords = append(myresults.HasRecords, &result{qSize: s, tid: tid, r: r})
								myresults.Unlock()
							}
						}
					}
				} else {
					if (tokens[1] == "Scheduling") && (tokens[3] == "command") && (tokens[6] == "Read-only") {
						//2015/12/03 05:07:12.577382 magap302 masterag-32357 MDW INFO <SEI_MAAdminSequence.cpp#196 TID#13> Scheduling the command in the Read-only command sequencer pool. Pool queue size: 393
						backToken := strings.Split(r.Raw[len(r.Raw)-40:len(r.Raw)], " ")
						last := len(backToken) - 1
						txt1 := strings.Join(backToken[last-2:last], " ")
						if txt1 == "queue size:" {
							if s, err := strconv.Atoi(backToken[last]); err == nil {
								myresults.Lock()
								myresults.HasRecords = append(myresults.HasRecords, &result{qSize: s, tid: tid, r: r})
								myresults.Unlock()
							}
						}
					}
				}
			}
		}(id, sl)
	}

	wg.Wait()
	sort.Sort(record.ByHasRecordTime{myresults.HasRecords})

	// Build chart
	chart := tm.NewLineChart(tm.Width()-10, tm.Height()-10)

	data := new(tm.DataTable)
	data.AddColumn("Seconds")
	data.AddColumn("QMax")
	data.AddColumn("QMin")

	type prec struct {
		max int
		min int
	}

	t0 := myresults.HasRecords[0].(*result).r.Time
	tmax := myresults.HasRecords[len(myresults.HasRecords)-1].(*result).r.Time
	indexMax := int(tmax.Sub(t0).Seconds())

	qmaxTime := time.Unix(0, 0)
	qmax := 0

	m := make(map[int]prec)
	for _, v := range myresults.HasRecords {
		r := v.(*result)
		d := int(r.r.Time.Sub(t0).Seconds())
		p, ok := m[d]
		if !ok {
			p = prec{r.qSize, r.qSize}
		} else {
			if p.max < r.qSize {
				p.max = r.qSize
			}
			if p.min > r.qSize {
				p.min = r.qSize
			}
		}
		m[d] = p

		if p.max > qmax {
			qmax = p.max
			qmaxTime = r.GetRecord().Time
		}
	}

	for t := 0; t <= int(indexMax); t++ {
		data.AddRow(float64(t), float64(m[t].max), float64(m[t].min))
	}

	tm.Println(chart.Draw(data))
	tm.Flush()

	fmt.Printf("Qmax=%d  at %s\n", qmax, qmaxTime.Format(utils.DateFormat))

	return nil
}
Esempio n. 4
0
//Display the distribution for a given command
func StatCmdDistribution(cmdName string) {

	for _, ss := range buildStats() {
		if ss.cmd == cmdName {
			// Build chart
			chart := tm.NewLineChart(tm.Width()-10, tm.Height()-33)

			data := new(tm.DataTable)
			data.AddColumn("CmdCount")
			data.AddColumn("Duration")

			for i, rec := range ss.records {
				if d, err := rec.GetCmdDuration(); err != nil {
					data.AddRow(float64(i), -1.)
				} else {
					data.AddRow(float64(i), float64(d.Nanoseconds()/1000000))
				}
			}

			tm.Println(chart.Draw(data))
			tm.Flush()

			// Statistics for that particular command
			{
				w := new(tabwriter.Writer)
				w.Init(os.Stdout, 20, 0, 2, ' ', tabwriter.AlignRight)

				fmt.Fprintln(w, "Command\tcount\tmiss\tmin (ms)\tmax (ms)\tavg (ms)\t95% (ms)\t")
				c := int64(len(ss.records) - ss.incomplete)
				i95 := c * 95 / 100

				if c == 0 {
					c = 1
				}
				percentile95 := int64(-1)
				if d95, err := ss.records[i95].GetCmdDuration(); err == nil {
					percentile95 = d95.Nanoseconds()
				}

				fmt.Fprintf(w, "%s\t%d\t%d\t%d\t%d\t%d\t%d\t\n", ss.cmd, len(ss.records), ss.incomplete, ss.min.Nanoseconds()/1000000, ss.max.Nanoseconds()/1000000, ss.sum.Nanoseconds()/1000000/c, percentile95/1000000)

				fmt.Fprintln(w)
				w.Flush()

			}
			// The 10 slowest occurence
			{
				w := new(tabwriter.Writer)
				w.Init(os.Stdout, 5, 0, 2, ' ', tabwriter.TabIndent)
				fmt.Fprintln(w, "Duration(ms)\tcmd\t")

				min := 10
				if len(ss.records) < 10 {
					min = len(ss.records)
				}
				for i := 1; i <= min; i++ {
					rec := ss.records[len(ss.records)-i]
					if d, err := rec.GetCmdDuration(); err != nil {
						fmt.Fprintf(w, "-\t%s\t\n", rec.Raw)
					} else {
						fmt.Fprintf(w, "%d\t%s\t\n", d.Nanoseconds()/1000000, rec.Raw)
					}

				}

				fmt.Fprintln(w)
				w.Flush()
			}
			return
		}
	}

}