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// 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
}
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