Example #1
0
func captureRusageStats(r metrics.Registry, d time.Duration) {
	for {
		ru := getRusage()
		time.Sleep(d)
		ru2 := getRusage()

		if ru == nil || ru2 == nil {
			continue
		}

		rVals := map[string]int64{
			"UserTime":   syscall.TimevalToNsec(ru2.Utime) - syscall.TimevalToNsec(ru.Utime),
			"SystemTime": syscall.TimevalToNsec(ru2.Stime) - syscall.TimevalToNsec(ru.Stime),
			"MaxRss":     ru.Maxrss,
			"InBlock":    ru2.Inblock - ru.Inblock,
			"OuBlock":    ru2.Oublock - ru.Oublock,
		}

		for metric, val := range rVals {
			if g := getGauge(r, "rusage."+metric); g != nil {
				g.(metrics.Gauge).Update(val)
			}
		}
	}
}
Example #2
0
//  CPUtime returns the current CPU usage (user time + system time).
func CPUtime() time.Duration {
	var ustruct syscall.Rusage
	rx.CkErr(syscall.Getrusage(0, &ustruct))
	user := time.Duration(syscall.TimevalToNsec(ustruct.Utime))
	sys := time.Duration(syscall.TimevalToNsec(ustruct.Stime))
	return user + sys
	return 0
}
func (i *Instrumentation) sampleRusage(ru, ru2 *syscall.Rusage) {
	if ru == nil || ru2 == nil {
		return
	}

	i.Gauge(1.0, "rusage.userTime", int(syscall.TimevalToNsec(ru2.Utime)-syscall.TimevalToNsec(ru.Utime)))
	i.Gauge(1.0, "rusage.systemTime", int(syscall.TimevalToNsec(ru2.Stime)-syscall.TimevalToNsec(ru.Stime)))
	i.Gauge(1.0, "rusage.maxRss", int(ru.Maxrss))
	i.Gauge(1.0, "rusage.inBlock", int(ru2.Inblock-ru.Inblock))
	i.Gauge(1.0, "rusage.outBlock", int(ru2.Oublock-ru.Oublock))
}
Example #4
0
File: varz.go Project: jamessan/dcs
func (ct cpuTimeMetric) Collect(ch chan<- prometheus.Metric) {
	var rusage syscall.Rusage
	if err := syscall.Getrusage(syscall.RUSAGE_SELF, &rusage); err == nil {
		m := ct.counter.WithLabelValues("user")
		m.Set(float64(syscall.TimevalToNsec(rusage.Utime)))
		ch <- m

		m = ct.counter.WithLabelValues("system")
		m.Set(float64(syscall.TimevalToNsec(rusage.Stime)))
		ch <- m
	}
}
Example #5
0
func TimevalToDuration(tv syscall.Timeval) time.Duration {
	ns := syscall.TimevalToNsec(tv)
	return time.Duration(ns) * time.Nanosecond
}