Ejemplo n.º 1
0
// VirtualMemory returns VirtualmemoryStat.
func VirtualMemory() (*VirtualMemoryStat, error) {
	ret := &VirtualMemoryStat{}

	p, err := getPageSize()
	if err != nil {
		return nil, err
	}
	t, err := common.DoSysctrl("hw.memsize")
	if err != nil {
		return nil, err
	}
	total, err := strconv.ParseUint(t[0], 10, 64)
	if err != nil {
		return nil, err
	}
	err = getVmStat(p, ret)
	if err != nil {
		return nil, err
	}

	ret.Available = ret.Free + ret.Cached
	ret.Total = total

	ret.Used = ret.Total - ret.Free
	ret.UsedPercent = float64(ret.Total-ret.Available) / float64(ret.Total) * 100.0

	return ret, nil
}
Ejemplo n.º 2
0
// SwapMemory returns swapinfo.
func SwapMemory() (*SwapMemoryStat, error) {
	var ret *SwapMemoryStat

	swapUsage, err := common.DoSysctrl("vm.swapusage")
	if err != nil {
		return ret, err
	}

	total := strings.Replace(swapUsage[2], "M", "", 1)
	used := strings.Replace(swapUsage[5], "M", "", 1)
	free := strings.Replace(swapUsage[8], "M", "", 1)

	total_v, err := strconv.ParseFloat(total, 64)
	if err != nil {
		return nil, err
	}
	used_v, err := strconv.ParseFloat(used, 64)
	if err != nil {
		return nil, err
	}
	free_v, err := strconv.ParseFloat(free, 64)
	if err != nil {
		return nil, err
	}

	u := float64(0)
	if total_v != 0 {
		u = ((total_v - free_v) / total_v) * 100.0
	}

	// vm.swapusage shows "M", multiply 1000
	ret = &SwapMemoryStat{
		Total:       uint64(total_v * 1000),
		Used:        uint64(used_v * 1000),
		Free:        uint64(free_v * 1000),
		UsedPercent: u,
	}

	return ret, nil
}
Ejemplo n.º 3
0
func VirtualMemory() (*VirtualMemoryStat, error) {
	pageSize, err := common.DoSysctrl("vm.stats.vm.v_page_size")
	if err != nil {
		return nil, err
	}
	p, err := strconv.ParseUint(pageSize[0], 10, 64)
	if err != nil {
		return nil, err
	}

	pageCount, err := common.DoSysctrl("vm.stats.vm.v_page_count")
	if err != nil {
		return nil, err
	}
	free, err := common.DoSysctrl("vm.stats.vm.v_free_count")
	if err != nil {
		return nil, err
	}
	active, err := common.DoSysctrl("vm.stats.vm.v_active_count")
	if err != nil {
		return nil, err
	}
	inactive, err := common.DoSysctrl("vm.stats.vm.v_inactive_count")
	if err != nil {
		return nil, err
	}
	cache, err := common.DoSysctrl("vm.stats.vm.v_cache_count")
	if err != nil {
		return nil, err
	}
	buffer, err := common.DoSysctrl("vfs.bufspace")
	if err != nil {
		return nil, err
	}
	wired, err := common.DoSysctrl("vm.stats.vm.v_wire_count")
	if err != nil {
		return nil, err
	}

	parsed := make([]uint64, 0, 7)
	vv := []string{
		pageCount[0],
		free[0],
		active[0],
		inactive[0],
		cache[0],
		buffer[0],
		wired[0],
	}
	for _, target := range vv {
		t, err := strconv.ParseUint(target, 10, 64)
		if err != nil {
			return nil, err
		}
		parsed = append(parsed, t)
	}

	ret := &VirtualMemoryStat{
		Total:    parsed[0] * p,
		Free:     parsed[1] * p,
		Active:   parsed[2] * p,
		Inactive: parsed[3] * p,
		Cached:   parsed[4] * p,
		Buffers:  parsed[5],
		Wired:    parsed[6] * p,
	}

	ret.Available = ret.Inactive + ret.Cached + ret.Free
	ret.Used = ret.Active + ret.Wired + ret.Cached
	ret.UsedPercent = float64(ret.Total-ret.Available) / float64(ret.Total) * 100.0

	return ret, nil
}