110 lines
2.1 KiB
Go
110 lines
2.1 KiB
Go
// +build darwin
|
|
|
|
package mem
|
|
|
|
import (
|
|
"os/exec"
|
|
"strconv"
|
|
"strings"
|
|
|
|
common "github.com/influxdb/telegraf/plugins/system/ps/common"
|
|
)
|
|
|
|
func getPageSize() (uint64, error) {
|
|
out, err := exec.Command("pagesize").Output()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
o := strings.TrimSpace(string(out))
|
|
p, err := strconv.ParseUint(o, 10, 64)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return p, nil
|
|
}
|
|
|
|
// VirtualMemory returns VirtualmemoryStat.
|
|
func VirtualMemory() (*VirtualMemoryStat, error) {
|
|
p, err := getPageSize()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
total, err := common.DoSysctrl("hw.memsize")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
free, err := common.DoSysctrl("vm.page_free_count")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
parsed := make([]uint64, 0, 7)
|
|
vv := []string{
|
|
total[0],
|
|
free[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],
|
|
Free: parsed[1] * p,
|
|
}
|
|
|
|
// TODO: platform independent (worked freebsd?)
|
|
ret.Available = ret.Free + ret.Buffers + ret.Cached
|
|
|
|
ret.Used = ret.Total - ret.Free
|
|
ret.UsedPercent = float64(ret.Total-ret.Available) / float64(ret.Total) * 100.0
|
|
|
|
return ret, nil
|
|
}
|
|
|
|
// 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
|
|
}
|