Exemplo n.º 1
0
func cpuUsageOf(pid int, waitHandler func()) float32 {
	// as explained in http://goo.gl/fjrV16
	stat1 := procfs.StatOf(pid)
	utime1 := stat1.UTime
	stime1 := stat1.STime
	cputime1 := procfs.CpuTimeTotal()

	waitHandler()

	stat2 := procfs.StatOf(pid)
	utime2 := stat2.UTime
	stime2 := stat2.STime
	cputime2 := procfs.CpuTimeTotal()

	return float32(cpuCount()*((utime2+stime2)-(utime1+stime1))*100) / float32(cputime2-cputime1)
}
Exemplo n.º 2
0
func propertiesOf(pid int, keys []Property) PropertyMap {
	result := make(PropertyMap)
	stat := procfs.StatOf(pid)

	for _, key := range keys {
		switch key {
		case VmUsage:
			result[VmUsage] = stat.VSize

		case CpuUsage:
			result[CpuUsage] = cpuUsageOf(pid, func() { time.Sleep(time.Second) })
		}
	}

	return result
}
Exemplo n.º 3
0
func nameOf(pid int) string {
	return procfs.StatOf(pid).Name
}