mirror of
https://github.com/prometheus/node_exporter
synced 2024-12-11 17:06:04 +00:00
43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
// Copyright 2016 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
//go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && !noloadavg
|
|
// +build darwin dragonfly freebsd netbsd openbsd
|
|
// +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
|
|
}
|