func StartReadText() {
	hello := new(Job)
	hello.text = "hello"
	hello.i = 0
	hello.max = 3

	world := new(Job)
	world.text = "world"
	world.i = 0
	world.max = 5
	go ReadText(hello)
	go ReadText(world)

	cpus := runtime.GOMAXPROCS(0)
	fmt.Println(runtime.GOOS, runtime.NumCPU(), runtime.NumCgoCall(), runtime.NumGoroutine(), "list cpu number:", cpus)

	max := 8
	for i := 1; i < max; i++ {
		go showNumber(i)
	}
	//This is because there’s no guarantee as to how
	//many goroutines, if any, will complete before the end of the main() function
	runtime.Gosched()
	fmt.Println("exits!")
}
Ejemplo n.º 2
0
//	Prints a summary of go:ngine's *Stats* performance counters when the parent example app exits.
func PrintPostLoopSummary() {
	printStatSummary := func(name string, timing *ng.TimingStats) {
		fmt.Printf("%v\t\tAvg=%8.3fms\tMax=%8.3fms\n", name, timing.Average()*1000, timing.Max()*1000)
	}
	fmt.Printf("Average FPS:\t\t%v (total %v over %v)\n", ng.Stats.AverageFps(), ng.Stats.TotalFrames(), time.Duration(int64(ng.Loop.Time()*1000*1000*1000)))
	printStatSummary("Full Loop Iteration", &ng.Stats.Frame)
	printStatSummary("Frame On.EverySec", &ng.Stats.FrameOnSec)
	printStatSummary("Frame On.AppThread", &ng.Stats.FrameAppThread)
	printStatSummary("Frame On.WinThread", &ng.Stats.FrameWinThread)
	printStatSummary("Frame Prep Thread", &ng.Stats.FramePrepThread)
	printStatSummary("Frame Thread Sync", &ng.Stats.FrameThreadSync)
	printStatSummary("Frame Render (CPU)", &ng.Stats.FrameRenderCpu)
	printStatSummary("Frame Render (GPU)", &ng.Stats.FrameRenderGpu)
	printStatSummary("Frame Render Both", &ng.Stats.FrameRenderBoth)
	if s := "GC (max. 1x/sec)"; ng.Options.Loop.GcEvery.Frame || ng.Options.Loop.GcEvery.Sec {
		if ng.Options.Loop.GcEvery.Frame {
			s = "GC (max 1x/frame)"
		}
		printStatSummary(s, &ng.Stats.Gc)
		if !ng.Options.Loop.GcEvery.Frame {
			fmt.Printf("Averaged GC/frame cost:\t%1.3fms\n", (ng.Stats.Gc.Average()/ng.Stats.AverageFps())*1000)
		}
	}
	fmt.Printf("Shaders: compiled %v GLSL shader programs over time, which took %v in total.\n", ng.Stats.Programs.NumProgsCompiled, time.Duration(ng.Stats.Programs.TotalTimeCost))
	cgoPerFrame, numTotalFrames := int64(0), ng.Stats.TotalFrames()
	if numTotalFrames != 0 {
		cgoPerFrame = runtime.NumCgoCall() / int64(ng.Stats.TotalFrames())
	}
	fmt.Printf("CGO calls: pre-loop init %v, loop %v (avg. %v/frame)\n\n", numCgo.preLoop, numCgo.postLoop-numCgo.preLoop, cgoPerFrame)
}
Ejemplo n.º 3
0
func (gui *Gui) setStatsPane() {
	var memStats runtime.MemStats
	runtime.ReadMemStats(&memStats)

	statsPane := gui.getObjectByName("statsPane")
	statsPane.Set("text", fmt.Sprintf(`###### Mist %s (%s) #######

eth %d (p2p = %d)

CPU:        # %d
Goroutines: # %d
CGoCalls:   # %d

Alloc:      %d
Heap Alloc: %d

CGNext:     %x
NumGC:      %d
`, Version, runtime.Version(),
		eth.ProtocolVersion, 2,
		runtime.NumCPU, runtime.NumGoroutine(), runtime.NumCgoCall(),
		memStats.Alloc, memStats.HeapAlloc,
		memStats.NextGC, memStats.NumGC,
	))
}
Ejemplo n.º 4
0
func (metrica *noCgoCallsMetrica) GetValue() (float64, error) {
	currentValue := runtime.NumCgoCall()
	value := float64(currentValue - metrica.lastValue)
	metrica.lastValue = currentValue

	return value, nil
}
Ejemplo n.º 5
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func ShowAdmin(res http.ResponseWriter, req *http.Request, base *BaseController) {
	// TODO: add total transactions
	male_players := models.GetMalePlayers()
	female_players := models.GetFemalePlayers()
	m := &runtime.MemStats{}
	runtime.ReadMemStats(m)
	online_records, err := models.GetOnlineRecords()
	if err != nil {
		http.Error(res, "Error while getting online records: "+err.Error(), 500)
		return
	}
	views.Parser.ExecuteTemplate(res, "admin.html", &AdminOverviewResponse{
		male_players,
		female_players,
		models.GetSorcererPlayers(),
		models.GetDruidPlayers(),
		models.GetPaladinPlayers(),
		models.GetKnightPlayers(),
		models.GetTotalAccounts(),
		models.GetTotalPlayers(),
		m,
		runtime.NumCPU(),
		runtime.NumGoroutine(),
		runtime.NumCgoCall(),
		runtime.Version(),
		online_records,
	})
}
Ejemplo n.º 6
0
func main() {
	log.Println("Version=", runtime.Version())
	log.Println("GOMAXPROCS=", runtime.GOMAXPROCS(0))
	log.Println("NumCPUs=", runtime.NumCPU())
	log.Println("NumCgoCall=", runtime.NumCgoCall())
	log.Println("NumGoroutines=", runtime.NumGoroutine())
	debug.PrintStack()
}
Ejemplo n.º 7
0
// SampleEnvironment queries the runtime system for various interesting metrics,
// storing the resulting values in the set of metric gauges maintained by
// RuntimeStatSampler. This makes runtime statistics more convenient for
// consumption by the time series and status systems.
//
// This method should be called periodically by a higher level system in order
// to keep runtime statistics current.
func (rsr *RuntimeStatSampler) SampleEnvironment() {
	// Record memory and call stats from the runtime package.
	// TODO(mrtracy): memory statistics will not include usage from RocksDB.
	// Determine an appropriate way to compute total memory usage.
	numCgoCall := runtime.NumCgoCall()
	numGoroutine := runtime.NumGoroutine()

	// It might be useful to call ReadMemStats() more often, but it stops the
	// world while collecting stats so shouldn't be called too often.
	ms := runtime.MemStats{}
	runtime.ReadMemStats(&ms)

	// Record CPU statistics using syscall package.
	ru := syscall.Rusage{}
	if err := syscall.Getrusage(syscall.RUSAGE_SELF, &ru); err != nil {
		log.Errorf("Getrusage failed: %v", err)
	}

	// Time statistics can be compared to the total elapsed time to create a
	// useful percentage of total CPU usage, which would be somewhat less accurate
	// if calculated later using downsampled time series data.
	now := rsr.clock.PhysicalNow()
	dur := float64(now - rsr.lastNow)
	newUtime := ru.Utime.Nano()
	newStime := ru.Stime.Nano()
	uPerc := float64(newUtime-rsr.lastUtime) / dur
	sPerc := float64(newStime-rsr.lastStime) / dur
	pausePerc := float64(ms.PauseTotalNs-rsr.lastPauseTime) / dur
	rsr.lastNow = now
	rsr.lastUtime = newUtime
	rsr.lastStime = newStime
	rsr.lastPauseTime = ms.PauseTotalNs

	// Log summary of statistics to console, if requested.
	activeMiB := float64(ms.Alloc) / (1 << 20)
	cgoRate := float64((numCgoCall-rsr.lastCgoCall)*int64(time.Second)) / dur
	log.Infof("runtime stats: %d goroutines, %.2fMiB active, %.2fcgo/sec, %.2f/%.2f %%(u/s)time, %.2f %%gc (%dx)",
		numGoroutine, activeMiB, cgoRate, uPerc, sPerc, pausePerc, ms.NumGC-rsr.lastNumGC)
	if log.V(2) {
		log.Infof("memstats: %+v", ms)
	}
	if logOSStats != nil {
		logOSStats()
	}
	rsr.lastCgoCall = numCgoCall
	rsr.lastNumGC = ms.NumGC

	rsr.cgoCalls.Update(numCgoCall)
	rsr.goroutines.Update(int64(numGoroutine))
	rsr.allocBytes.Update(int64(ms.Alloc))
	rsr.gcCount.Update(int64(ms.NumGC))
	rsr.gcPauseNS.Update(int64(ms.PauseTotalNs))
	rsr.gcPausePercent.Update(pausePerc)
	rsr.cpuUserNS.Update(newUtime)
	rsr.cpuUserPercent.Update(uPerc)
	rsr.cpuSysNS.Update(newStime)
	rsr.cpuSysPercent.Update(sPerc)
}
Ejemplo n.º 8
0
// capture does a one time collection of DeferStats
func (c *Client) capture() {

	var mem runtime.MemStats
	var gc debug.GCStats

	mems := ""
	if c.GrabMem {
		runtime.ReadMemStats(&mem)
		mems = strconv.FormatUint(mem.Alloc, 10)
	}

	gcs := ""
	if c.GrabGC {
		debug.ReadGCStats(&gc)
		gcs = strconv.FormatInt(gc.NumGC, 10)
	}

	grs := ""
	if c.GrabGR {
		grs = strconv.Itoa(runtime.NumGoroutine())
	}

	cgos := ""
	if c.GrabCgo {
		cgos = strconv.FormatInt(runtime.NumCgoCall(), 10)
	}

	fds := ""
	if c.GrabFd {
		fds = strconv.Itoa(openFileCnt())
	}

	ds := DeferStats{
		Mem:        mems,
		GoRoutines: grs,
		Cgos:       cgos,
		Fds:        fds,
		HTTPs:      curlist.List(),
		DBs:        Querylist.List(),
		GC:         gcs,
	}

	// FIXME
	// empty our https/dbs
	curlist.Reset()
	Querylist.Reset()

	go func() {
		b, err := json.Marshal(ds)
		if err != nil {
			log.Println(err)
		}

		c.BaseClient.Postit(b, c.statsUrl)
	}()
}
Ejemplo n.º 9
0
// Status will return the current status of this system
func (ctx *BroadcastContext) Status() (*BroadcastServerStatus, error) {
	status := new(BroadcastServerStatus)
	status.NumGoroutines = runtime.NumGoroutine()
	status.NumCpu = runtime.NumCPU()
	status.NumCgoCall = runtime.NumCgoCall()
	status.NumClients = ctx.ClientSize
	status.Memory = new(runtime.MemStats)
	runtime.ReadMemStats(status.Memory)
	return status, nil
}
Ejemplo n.º 10
0
// GetTimeSeriesData returns a slice of TimeSeriesData updates based on current
// runtime statistics.
//
// Calling this method will query various system packages for runtime statistics
// and convert the information to time series data. This is currently done in
// one method because it is convenient; however, in the future querying and
// recording can be easily separated, similar to the way that NodeStatus is
// separated into a monitor and a recorder.
func (rsr *RuntimeStatRecorder) GetTimeSeriesData() []ts.TimeSeriesData {
	data := make([]ts.TimeSeriesData, 0, rsr.lastDataCount)

	// Record memory and call stats from the runtime package.
	// TODO(mrtracy): memory statistics will not include usage from RocksDB.
	// Determine an appropriate way to compute total memory usage.
	numCgoCall := runtime.NumCgoCall()
	numGoroutine := runtime.NumGoroutine()
	ms := runtime.MemStats{}
	runtime.ReadMemStats(&ms)

	// Record CPU statistics using syscall package.
	ru := syscall.Rusage{}
	if err := syscall.Getrusage(syscall.RUSAGE_SELF, &ru); err != nil {
		log.Errorf("Getrusage failed: %v", err)
	}

	// Time statistics can be compared to the total elapsed time to create a
	// useful percentage of total CPU usage, which would be somewhat less accurate
	// if calculated later using downsampled time series data.
	now := rsr.clock.PhysicalNow()
	dur := float64(now - rsr.lastNow)
	newUtime := ru.Utime.Nano()
	newStime := ru.Stime.Nano()
	uPerc := float64(newUtime-rsr.lastUtime) / dur
	sPerc := float64(newStime-rsr.lastStime) / dur
	pausePerc := float64(ms.PauseTotalNs-rsr.lastPauseTime) / dur
	rsr.lastNow = now
	rsr.lastUtime = newUtime
	rsr.lastStime = newStime
	rsr.lastPauseTime = ms.PauseTotalNs

	// Log summary of statistics to console, if requested.
	if log.V(1) {
		activeMiB := float64(ms.Alloc) / (1 << 20)
		cgoRate := float64((numCgoCall-rsr.lastCgoCall)*int64(time.Second)) / dur
		log.Infof("runtime stats: %d goroutines, %.2fMiB active, %.2fcgo/sec, %.2f/%.2f %%(u/s)time, %.2f %%gc (%dx)",
			numGoroutine, activeMiB, cgoRate, uPerc, sPerc, pausePerc, ms.NumGC-rsr.lastNumGC)
		rsr.lastCgoCall = numCgoCall
		rsr.lastNumGC = ms.NumGC
	}

	data = append(data, rsr.record(now, "cgocalls", float64(numCgoCall)))
	data = append(data, rsr.record(now, "goroutines", float64(numGoroutine)))
	data = append(data, rsr.record(now, "allocbytes", float64(ms.Alloc)))
	data = append(data, rsr.record(now, "gc.count", float64(ms.NumGC)))
	data = append(data, rsr.record(now, "gc.pause.ns", float64(ms.PauseTotalNs)))
	data = append(data, rsr.record(now, "gc.pause.percent", pausePerc))
	data = append(data, rsr.record(now, "cpu.user.ns", float64(newUtime)))
	data = append(data, rsr.record(now, "cpu.user.percent", uPerc))
	data = append(data, rsr.record(now, "cpu.sys.ns", float64(newStime)))
	data = append(data, rsr.record(now, "cpu.sys.percent", sPerc))
	rsr.lastDataCount = len(data)
	return data
}
Ejemplo n.º 11
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// a few simple stats from go runtime, in your app, if you want these
// add them as a metrics function
//
//		func init() {
//			metrics.AddMetricsFunction(metrics.GoRuntimeMetrics)
//		}
func GoRuntimeMetrics(snap *Snapshot) {

	snap.Ints["go_cgocall.ct"] = uint64(runtime.NumCgoCall())
	snap.Ints["go_numgoroutine.ct"] = uint64(runtime.NumGoroutine())
	// http://weekly.golang.org/pkg/runtime/#MemStats
	runtime.ReadMemStats(&rtMem)
	snap.Ints["go_memalloc.avg"] = rtMem.Alloc / 1048576
	snap.Ints["go_memtotalloc.avg"] = rtMem.TotalAlloc / 1048576
	snap.Ints["go_memsys.avg"] = rtMem.Sys / 1048576

}
Ejemplo n.º 12
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func SysInfo(job *Job) ([]byte, error) {
	return json.Marshal(&systemInfo{
		GOOS:         runtime.GOOS,
		GOARCH:       runtime.GOARCH,
		GOROOT:       runtime.GOROOT(),
		Version:      runtime.Version(),
		NumCPU:       runtime.NumCPU(),
		NumGoroutine: runtime.NumGoroutine(),
		NumCgoCall:   runtime.NumCgoCall(),
	})
}
Ejemplo n.º 13
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func main() {

	go func() {
		fmt.Println("before")
		runtime.Goexit()
		fmt.Println("after")
	}()

	fmt.Println(runtime.GOROOT(), runtime.GOMAXPROCS(0), runtime.NumCPU(), runtime.NumCgoCall())
	<-time.After(time.Second * 2)
}
Ejemplo n.º 14
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func RESTGetRuntimeStats(w http.ResponseWriter, r *http.Request) {
	MustEncode(w, map[string]interface{}{
		"currTime":  time.Now(),
		"startTime": StartTime,
		"go": map[string]interface{}{
			"numGoroutine":   runtime.NumGoroutine(),
			"numCgoCall":     runtime.NumCgoCall(),
			"memProfileRate": runtime.MemProfileRate,
		},
	})
}
Ejemplo n.º 15
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// golang stats
func GoStats() []byte {
	res := map[string]interface{}{}
	res["compiler"] = runtime.Compiler
	res["arch"] = runtime.GOARCH
	res["os"] = runtime.GOOS
	res["max_procs"] = runtime.GOMAXPROCS(-1)
	res["root"] = runtime.GOROOT()
	res["cgo_call"] = runtime.NumCgoCall()
	res["goroutine_num"] = runtime.NumGoroutine()
	res["version"] = runtime.Version()
	return jsonRes(res)
}
Ejemplo n.º 16
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func cliDebug(c *minicli.Command) *minicli.Response {
	return &minicli.Response{
		Host:   hostname,
		Header: []string{"Go version", "Goroutines", "CGO calls"},
		Tabular: [][]string{
			[]string{
				runtime.Version(),
				strconv.Itoa(runtime.NumGoroutine()),
				strconv.FormatInt(runtime.NumCgoCall(), 10),
			},
		},
	}
}
Ejemplo n.º 17
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func (s *runtimeMetrics) Metrics() map[string]interface{} {
	runtime.ReadMemStats(&s.memStats)
	return map[string]interface{}{
		"Mallocs":          CounterValue(s.memStats.Mallocs),
		"Frees":            CounterValue(s.memStats.Frees),
		"heap/HeapAlloc":   GaugeValue(s.memStats.HeapAlloc),
		"heap/HeapObjects": GaugeValue(s.memStats.HeapObjects),
		"gc/NumGC":         CounterValue(s.memStats.NumGC),
		"gc/PauseTotalNs":  CounterValue(s.memStats.PauseTotalNs),
		"Goroutines":       GaugeValue(runtime.NumGoroutine()),
		"CgoCalls":         CounterValue(runtime.NumCgoCall()),
	}
}
Ejemplo n.º 18
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Archivo: goos.go Proyecto: pto/waytogo
func main() {
	// var goos string = os.Getenv("GOOS")
	var goos = runtime.GOOS
	fmt.Printf("The operating system is: %s\n", goos)
	path := os.Getenv("PATH")
	fmt.Printf("Path is %s\n", path)
	fmt.Println("runtime.Compiler is", runtime.Compiler)
	fmt.Println("runtime.GOARCH is", runtime.GOARCH)
	fmt.Println("runtime.NumCPU() is", runtime.NumCPU())
	fmt.Println("runtime.NumGgoCall() is", runtime.NumCgoCall())
	fmt.Println("runtime.NumGoroutine() is", runtime.NumGoroutine())
	fmt.Println("runtime.Version() is", runtime.Version())
}
Ejemplo n.º 19
0
Archivo: info.go Proyecto: eswdd/bosun
func (i *info) dumpServer(buf *bytes.Buffer) {
	buf.WriteString("# Server\r\n")

	i.dumpPairs(buf, infoPair{"os", i.Server.OS},
		infoPair{"process_id", i.Server.ProceessId},
		infoPair{"addr", i.app.cfg.Addr},
		infoPair{"http_addr", i.app.cfg.HttpAddr},
		infoPair{"readonly", i.app.cfg.Readonly},
		infoPair{"goroutine_num", runtime.NumGoroutine()},
		infoPair{"cgo_call_num", runtime.NumCgoCall()},
		infoPair{"resp_client_num", i.app.respClientNum()},
	)
}
Ejemplo n.º 20
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func GetInfo() interface{} {
	d := time.Now().Sub(started)
	return Info{
		HasDbXML:     has_dbxml,
		QueueLen:     len(chWork),
		QueueCap:     cap(chWork),
		NumCPU:       runtime.NumCPU(),
		NumCgoCall:   runtime.NumCgoCall(),
		NumGoroutine: runtime.NumGoroutine(),
		Uptime:       d,
		UptimeString: d.String(),
		Version:      runtime.Version(),
	}
}
Ejemplo n.º 21
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func (c *Collector) outputStats() {
	if c.EnableCPU {
		// Goroutines
		c.gaugeFunc("cpu.goroutines", uint64(runtime.NumGoroutine()))

		// CGo calls
		c.gaugeFunc("cpu.cgo_calls", uint64(runtime.NumCgoCall()))
	}

	if c.EnableMem {
		m := &runtime.MemStats{}
		runtime.ReadMemStats(m)

		// General
		c.gaugeFunc("mem.alloc", m.Alloc)
		c.gaugeFunc("mem.total", m.TotalAlloc)
		c.gaugeFunc("mem.sys", m.Sys)
		c.gaugeFunc("mem.lookups", m.Lookups)
		c.gaugeFunc("mem.malloc", m.Mallocs)
		c.gaugeFunc("mem.frees", m.Frees)

		// Heap
		c.gaugeFunc("mem.heap.alloc", m.HeapAlloc)
		c.gaugeFunc("mem.heap.sys", m.HeapSys)
		c.gaugeFunc("mem.heap.idle", m.HeapIdle)
		c.gaugeFunc("mem.heap.inuse", m.HeapInuse)
		c.gaugeFunc("mem.heap.released", m.HeapReleased)
		c.gaugeFunc("mem.heap.objects", m.HeapObjects)

		// Stack
		c.gaugeFunc("mem.stack.inuse", m.StackInuse)
		c.gaugeFunc("mem.stack.sys", m.StackSys)
		c.gaugeFunc("mem.stack.mspan_inuse", m.MSpanInuse)
		c.gaugeFunc("mem.stack.mspan_sys", m.MSpanSys)
		c.gaugeFunc("mem.stack.mcache_inuse", m.MCacheInuse)
		c.gaugeFunc("mem.stack.mcache_sys", m.MCacheSys)

		c.gaugeFunc("mem.othersys", m.OtherSys)

		if c.EnableGC {
			// GC
			c.gaugeFunc("mem.gc.sys", m.GCSys)
			c.gaugeFunc("mem.gc.next", m.NextGC)
			c.gaugeFunc("mem.gc.last", m.LastGC)
			c.gaugeFunc("mem.gc.pause_total", m.PauseTotalNs)
			c.gaugeFunc("mem.gc.pause", m.PauseNs[(m.NumGC+255)%256])
			c.gaugeFunc("mem.gc.count", uint64(m.NumGC))
		}
	}
}
Ejemplo n.º 22
0
func init() {
	start := time.Now()
	Publish("runtime", map[string]interface{}{
		"cgocalls":   Func(func() interface{} { return runtime.NumCgoCall() }),
		"goroutines": Func(func() interface{} { return runtime.NumGoroutine() }),
		"version":    runtime.Version(),
		"memstats": Func(func() interface{} {
			var ms runtime.MemStats
			runtime.ReadMemStats(&ms)
			return &ms
		}),
	})
	Publish("uptimeSeconds", Func(func() interface{} { return int(time.Now().Sub(start) / time.Second) }))
	Publish("cmdline", &os.Args)
}
Ejemplo n.º 23
0
// Capture new values for the Go runtime statistics exported in
// runtime.MemStats.  This is designed to be called in a background
// goroutine.  Giving a registry which has not been given to
// RegisterRuntimeMemStats will panic.
func CaptureRuntimeMemStatsOnce(r Registry) {
	runtime.ReadMemStats(&memStats)

	r.Get("runtime.MemStats.Alloc").(Gauge).Update(int64(memStats.Alloc))
	r.Get("runtime.MemStats.TotalAlloc").(Gauge).Update(int64(memStats.TotalAlloc))
	r.Get("runtime.MemStats.Sys").(Gauge).Update(int64(memStats.Sys))
	r.Get("runtime.MemStats.Lookups").(Gauge).Update(int64(memStats.Lookups))
	r.Get("runtime.MemStats.Mallocs").(Gauge).Update(int64(memStats.Mallocs))
	r.Get("runtime.MemStats.Frees").(Gauge).Update(int64(memStats.Frees))

	r.Get("runtime.MemStats.HeapAlloc").(Gauge).Update(int64(memStats.HeapAlloc))
	r.Get("runtime.MemStats.HeapSys").(Gauge).Update(int64(memStats.HeapSys))
	r.Get("runtime.MemStats.HeapIdle").(Gauge).Update(int64(memStats.HeapIdle))
	r.Get("runtime.MemStats.HeapInuse").(Gauge).Update(int64(memStats.HeapInuse))
	r.Get("runtime.MemStats.HeapReleased").(Gauge).Update(int64(memStats.HeapReleased))
	r.Get("runtime.MemStats.HeapObjects").(Gauge).Update(int64(memStats.HeapObjects))

	r.Get("runtime.MemStats.StackInuse").(Gauge).Update(int64(memStats.StackInuse))
	r.Get("runtime.MemStats.StackSys").(Gauge).Update(int64(memStats.StackSys))
	r.Get("runtime.MemStats.MSpanInuse").(Gauge).Update(int64(memStats.MSpanInuse))
	r.Get("runtime.MemStats.MSpanSys").(Gauge).Update(int64(memStats.MSpanSys))
	r.Get("runtime.MemStats.MCacheInuse").(Gauge).Update(int64(memStats.MCacheInuse))
	r.Get("runtime.MemStats.MCacheSys").(Gauge).Update(int64(memStats.MCacheSys))
	r.Get("runtime.MemStats.BuckHashSys").(Gauge).Update(int64(memStats.BuckHashSys))

	r.Get("runtime.MemStats.NextGC").(Gauge).Update(int64(memStats.NextGC))
	r.Get("runtime.MemStats.LastGC").(Gauge).Update(int64(memStats.LastGC))
	r.Get("runtime.MemStats.PauseTotalNs").(Gauge).Update(int64(memStats.PauseTotalNs))
	// <https://code.google.com/p/go/source/browse/src/pkg/runtime/mgc0.c>
	for i := uint32(1); i <= memStats.NumGC-numGC; i++ {
		r.Get("runtime.MemStats.PauseNs").(Histogram).Update(int64(memStats.PauseNs[(memStats.NumGC%256-i)%256]))
	}
	r.Get("runtime.MemStats.NumGC").(Gauge).Update(int64(memStats.NumGC))
	if memStats.EnableGC {
		r.Get("runtime.MemStats.EnableGC").(Gauge).Update(1)
	} else {
		r.Get("runtime.MemStats.EnableGC").(Gauge).Update(0)
	}
	if memStats.EnableGC {
		r.Get("runtime.MemStats.DebugGC").(Gauge).Update(1)
	} else {
		r.Get("runtime.MemStats.DebugGC").(Gauge).Update(0)
	}

	r.Get("runtime.NumCgoCall").(Gauge).Update(int64(runtime.NumCgoCall()))
	r.Get("runtime.NumGoroutine").(Gauge).Update(int64(runtime.NumGoroutine()))

}
Ejemplo n.º 24
0
// Main entry point
func main() {
	// Set defaults for the server configuration
	Conf = &goserv.BaseConfiguration{
		BindAddress:    "0.0.0.0",
		BindPort:       80,
		ReadTimeout:    10 * time.Second,
		WriteTimeout:   10 * time.Second,
		MaxHeaderBytes: 1 << 20,
		LogLevel:       "info",
	}

	// Create a function that returns a struct for use with FuncHandler
	GetMemStats := func() interface{} {
		ms := runtime.MemStats{}
		runtime.ReadMemStats(&ms)
		return ms
	}

	// Bind it
	http.HandleFunc("/status/memory", goserv.FuncHandler(GetMemStats, true))

	// Create a function that returns an interface for use with FuncHandler
	SysStats := func() interface{} {
		return map[string]interface{}{
			"CPUCount":       runtime.NumCPU(),
			"GoroutineCount": runtime.NumGoroutine(),
			"CGoCallCount":   runtime.NumCgoCall(),
			"GoVersion":      runtime.Version(),
		}
	}

	// Bind it and log
	http.HandleFunc("/status/sys", goserv.FuncHandler(SysStats, true))

	// Bind a struct with StructHandler and use RestrictByIP
	// middleware to only allow specified IP addresses
	http.HandleFunc(
		"/status/config",
		goserv.RestrictByIP(
			goserv.StructHandler(Conf, true), []string{"127.0.0.1"}))

	// Make a new server.
	server := goserv.NewServer(Conf)
	// Log that we are listing
	goserv.Logger.Infof("Listening for connections on %s", server.Addr)
	// And listen for connections
	server.ListenAndServe()
}
Ejemplo n.º 25
0
func handleInternalRuntime(arg3 []byte) interface{} {
	var opts GoRuntimeStateOptions
	json.Unmarshal(arg3, &opts)

	state := GoRuntimeState{
		NumGoroutines: runtime.NumGoroutine(),
		NumCPU:        runtime.NumCPU(),
		NumCGo:        runtime.NumCgoCall(),
	}
	runtime.ReadMemStats(&state.MemStats)
	if opts.IncludeGoStacks {
		state.GoStacks = getStacks()
	}

	return state
}
Ejemplo n.º 26
0
func (this *runtimeHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Cache-Control", "must-revalidate,no-cache,no-store")
	runtime.ReadMemStats(&memstats)
	js := make(map[string]interface{})
	js["gomaxprocs"] = runtime.GOMAXPROCS(0)
	js["numcgocall"] = runtime.NumCgoCall()
	js["numcpu"] = runtime.NumCPU()
	js["numgoroutine"] = runtime.NumGoroutine()
	js["memstats"] = memstats
	js1, err := json.Marshal(js)
	if err != nil {
		panic(err)
	}
	w.Header().Set("Content-Type", "application/json")
	w.Write([]byte(js1))
}
Ejemplo n.º 27
0
// Collect memory usage metrics
func (mb *SquareMetrics) collectSystemMetrics() {
	var mem runtime.MemStats

	update := func(name string, value uint64) {
		metrics.GetOrRegisterGauge(name, mb.registry).Update(int64(value))
	}

	updateFloat := func(name string, value float64) {
		metrics.GetOrRegisterGaugeFloat64(name, mb.registry).Update(value)
	}

	sample := metrics.NewExpDecaySample(1028, 0.015)
	gcHistogram := metrics.GetOrRegisterHistogram("runtime.mem.gc.duration", mb.registry, sample)

	var observedPauses uint32
	for range time.Tick(mb.interval) {
		runtime.ReadMemStats(&mem)

		update("runtime.mem.alloc", mem.Alloc)
		update("runtime.mem.total-alloc", mem.TotalAlloc)
		update("runtime.mem.sys", mem.Sys)
		update("runtime.mem.lookups", mem.Lookups)
		update("runtime.mem.mallocs", mem.Mallocs)
		update("runtime.mem.frees", mem.Frees)

		update("runtime.mem.heap.alloc", mem.HeapAlloc)
		update("runtime.mem.heap.sys", mem.HeapSys)
		update("runtime.mem.heap.idle", mem.HeapIdle)
		update("runtime.mem.heap.inuse", mem.HeapInuse)
		update("runtime.mem.heap.released", mem.HeapReleased)
		update("runtime.mem.heap.objects", mem.HeapObjects)

		update("runtime.mem.stack.inuse", mem.StackInuse)
		update("runtime.mem.stack.sys", mem.StackSys)

		update("runtime.goroutines", uint64(runtime.NumGoroutine()))
		update("runtime.cgo-calls", uint64(runtime.NumCgoCall()))

		update("runtime.mem.gc.num-gc", uint64(mem.NumGC))
		updateFloat("runtime.mem.gc.cpu-fraction", mem.GCCPUFraction)

		// Update histogram of GC pauses
		for ; observedPauses < mem.NumGC; observedPauses++ {
			gcHistogram.Update(int64(mem.PauseNs[(observedPauses+1)%256]))
		}
	}
}
Ejemplo n.º 28
0
// collect & publish to statsd
func collect() {
	tag := ""
	if hostname, err := os.Hostname(); err == nil {
		tag += hostname
	} else {
		log.Warning(SERVICE, err)
	}
	// executable name
	if exe_name, err := os.Readlink("/proc/self/exe"); err == nil {
		tag += "." + path.Base(exe_name)
	} else {
		tag += fmt.Sprintf(".%v", os.Getpid())
		log.Warning(SERVICE, err)
	}

	memstats := &runtime.MemStats{}
	runtime.ReadMemStats(memstats)

	_statter.Counter(1.0, tag+".NumGoroutine", int(runtime.NumGoroutine()))
	_statter.Counter(1.0, tag+".NumCgoCall", int(runtime.NumCgoCall()))
	if memstats.NumGC > 0 {
		_statter.Counter(1.0, tag+".NumGC", int(memstats.NumGC))
		_statter.Timing(1.0, tag+".PauseTotal", time.Duration(memstats.PauseTotalNs))
		_statter.Timing(1.0, tag+".LastPause", time.Duration(memstats.PauseNs[(memstats.NumGC+255)%256]))
		_statter.Counter(1.0, tag+".Alloc", int(memstats.Alloc))
		_statter.Counter(1.0, tag+".TotalAlloc", int(memstats.TotalAlloc))
		_statter.Counter(1.0, tag+".Sys", int(memstats.Sys))
		_statter.Counter(1.0, tag+".Lookups", int(memstats.Lookups))
		_statter.Counter(1.0, tag+".Mallocs", int(memstats.Mallocs))
		_statter.Counter(1.0, tag+".Frees", int(memstats.Frees))
		_statter.Counter(1.0, tag+".HeapAlloc", int(memstats.HeapAlloc))
		_statter.Counter(1.0, tag+".HeapSys", int(memstats.HeapSys))
		_statter.Counter(1.0, tag+".HeapIdle", int(memstats.HeapIdle))
		_statter.Counter(1.0, tag+".HeapInuse", int(memstats.HeapInuse))
		_statter.Counter(1.0, tag+".HeapReleased", int(memstats.HeapReleased))
		_statter.Counter(1.0, tag+".HeapObjects", int(memstats.HeapObjects))
		_statter.Counter(1.0, tag+".StackInuse", int(memstats.StackInuse))
		_statter.Counter(1.0, tag+".StackSys", int(memstats.StackSys))
		_statter.Counter(1.0, tag+".MSpanInuse", int(memstats.MSpanInuse))
		_statter.Counter(1.0, tag+".MSpanSys", int(memstats.MSpanSys))
		_statter.Counter(1.0, tag+".MCacheInuse", int(memstats.MCacheInuse))
		_statter.Counter(1.0, tag+".MCacheSys", int(memstats.MCacheSys))
		_statter.Counter(1.0, tag+".BuckHashSys", int(memstats.BuckHashSys))
		_statter.Counter(1.0, tag+".GCSys", int(memstats.GCSys))
		_statter.Counter(1.0, tag+".OtherSys", int(memstats.OtherSys))
	}
}
Ejemplo n.º 29
0
func restGetRuntime(w http.ResponseWriter, r *http.Request) {
	jsonEncode(w, map[string]interface{}{
		"startTime": startTime,
		"arch":      runtime.GOARCH,
		"os":        runtime.GOOS,
		"numCPU":    runtime.NumCPU(),
		"go": map[string]interface{}{
			"GOMAXPROCS":     runtime.GOMAXPROCS(0),
			"GOROOT":         runtime.GOROOT(),
			"version":        runtime.Version(),
			"numGoroutine":   runtime.NumGoroutine(),
			"numCgoCall":     runtime.NumCgoCall(),
			"compiler":       runtime.Compiler,
			"memProfileRate": runtime.MemProfileRate,
		},
	})
}
Ejemplo n.º 30
0
// Capture new values for the Go runtime statistics exported in
// runtime.MemStats.  This is designed to be called in a background
// goroutine.  Giving a registry which has not been given to
// RegisterRuntimeMemStats will panic.  If the second parameter is
// false, the counters will be left to the lazy updates provided by
// the runtime.
func CaptureRuntimeMemStats(r Registry, readMemStats bool) {
	var m runtime.MemStats
	if readMemStats {
		runtime.ReadMemStats(&m)
	}

	r.Get("runtime.MemStats.Alloc").(Gauge).Update(int64(m.Alloc))
	r.Get("runtime.MemStats.TotalAlloc").(Gauge).Update(int64(m.TotalAlloc))
	r.Get("runtime.MemStats.Sys").(Gauge).Update(int64(m.Sys))
	r.Get("runtime.MemStats.Lookups").(Gauge).Update(int64(m.Lookups))
	r.Get("runtime.MemStats.Mallocs").(Gauge).Update(int64(m.Mallocs))
	r.Get("runtime.MemStats.Frees").(Gauge).Update(int64(m.Frees))

	r.Get("runtime.MemStats.HeapAlloc").(Gauge).Update(int64(m.HeapAlloc))
	r.Get("runtime.MemStats.HeapSys").(Gauge).Update(int64(m.HeapSys))
	r.Get("runtime.MemStats.HeapIdle").(Gauge).Update(int64(m.HeapIdle))
	r.Get("runtime.MemStats.HeapInuse").(Gauge).Update(int64(m.HeapInuse))
	r.Get("runtime.MemStats.HeapObjects").(Gauge).Update(int64(m.HeapObjects))

	r.Get("runtime.MemStats.StackInuse").(Gauge).Update(int64(m.StackInuse))
	r.Get("runtime.MemStats.StackSys").(Gauge).Update(int64(m.StackSys))
	r.Get("runtime.MemStats.MSpanInuse").(Gauge).Update(int64(m.MSpanInuse))
	r.Get("runtime.MemStats.MSpanSys").(Gauge).Update(int64(m.MSpanSys))
	r.Get("runtime.MemStats.MCacheInuse").(Gauge).Update(int64(m.MCacheInuse))
	r.Get("runtime.MemStats.MCacheSys").(Gauge).Update(int64(m.MCacheSys))
	r.Get("runtime.MemStats.BuckHashSys").(Gauge).Update(int64(m.BuckHashSys))

	r.Get("runtime.MemStats.NextGC").(Gauge).Update(int64(m.NextGC))
	r.Get("runtime.MemStats.PauseTotalNs").(Gauge).Update(int64(m.PauseTotalNs))
	r.Get("runtime.MemStats.PauseNs").(Histogram).Update(int64(m.PauseNs[0]))
	r.Get("runtime.MemStats.NumGC").(Gauge).Update(int64(m.NumGC))
	if m.EnableGC {
		r.Get("runtime.MemStats.EnableGC").(Gauge).Update(1)
	} else {
		r.Get("runtime.MemStats.EnableGC").(Gauge).Update(0)
	}
	if m.EnableGC {
		r.Get("runtime.MemStats.DebugGC").(Gauge).Update(1)
	} else {
		r.Get("runtime.MemStats.DebugGC").(Gauge).Update(0)
	}

	r.Get("runtime.NumCgoCall").(Gauge).Update(int64(runtime.NumCgoCall()))
	r.Get("runtime.NumGoroutine").(Gauge).Update(int64(runtime.NumGoroutine()))

}