mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-11-10 07:34:09 -08:00
28 lines
463 B
Go
28 lines
463 B
Go
// +build !noloadavg
|
|
|
|
package collector
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func getLoad() ([]float64, error) {
|
|
type loadavg struct {
|
|
load [3]uint32
|
|
scale int
|
|
}
|
|
b, err := unix.SysctlRaw("vm.loadavg")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
load := *(*loadavg)(unsafe.Pointer((&b[0])))
|
|
scale := float64(load.scale)
|
|
return []float64{
|
|
float64(load.load[0]) / scale,
|
|
float64(load.load[1]) / scale,
|
|
float64(load.load[2]) / scale,
|
|
}, nil
|
|
}
|