Add OpenBSD CPU collector (#805)
This commit is contained in:
parent
05d14ef9ee
commit
e3c76b1f0c
|
@ -0,0 +1,81 @@
|
|||
// Copyright 2018 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.
|
||||
|
||||
// +build !nocpu
|
||||
|
||||
package collector
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
"unsafe"
|
||||
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
/*
|
||||
#include <sys/param.h>
|
||||
#include <sys/sched.h>
|
||||
*/
|
||||
import "C"
|
||||
|
||||
type cpuCollector struct {
|
||||
cpu typedDesc
|
||||
}
|
||||
|
||||
func init() {
|
||||
registerCollector("cpu", defaultEnabled, NewCpuCollector)
|
||||
}
|
||||
|
||||
func NewCpuCollector() (Collector, error) {
|
||||
return &cpuCollector{
|
||||
cpu: typedDesc{prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "cpu", "seconds_total"),
|
||||
"Seconds the CPU spent in each mode.",
|
||||
[]string{"cpu", "mode"}, nil,
|
||||
), prometheus.CounterValue},
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (c *cpuCollector) Update(ch chan<- prometheus.Metric) (err error) {
|
||||
clockb, err := unix.SysctlRaw("kern.clockrate")
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
clock := *(*C.struct_clockinfo)(unsafe.Pointer(&clockb[0]))
|
||||
hz := float64(clock.stathz)
|
||||
|
||||
ncpus, err := unix.SysctlUint32("hw.ncpu")
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
var cp_time [][C.CPUSTATES]C.int64_t
|
||||
for i := 0; i < int(ncpus); i++ {
|
||||
cp_timeb, err := unix.SysctlRaw("kern.cp_time2", i)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
cp_time = append(cp_time, *(*[C.CPUSTATES]C.int64_t)(unsafe.Pointer(&cp_timeb[0])))
|
||||
}
|
||||
|
||||
for cpu, time := range cp_time {
|
||||
lcpu := strconv.Itoa(cpu)
|
||||
ch <- c.cpu.mustNewConstMetric(float64(time[C.CP_USER])/hz, lcpu, "user")
|
||||
ch <- c.cpu.mustNewConstMetric(float64(time[C.CP_NICE])/hz, lcpu, "nice")
|
||||
ch <- c.cpu.mustNewConstMetric(float64(time[C.CP_SYS])/hz, lcpu, "system")
|
||||
ch <- c.cpu.mustNewConstMetric(float64(time[C.CP_INTR])/hz, lcpu, "interrupt")
|
||||
ch <- c.cpu.mustNewConstMetric(float64(time[C.CP_IDLE])/hz, lcpu, "idle")
|
||||
}
|
||||
return err
|
||||
}
|
Loading…
Reference in New Issue