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Collect CPU temperatures on FreeBSD

This commit is contained in:
Dominik Honnef 2016-12-30 07:31:08 +01:00
parent 3b469e5547
commit 782eaee100
1 changed files with 20 additions and 6 deletions
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24
collector/cpu_freebsd.go
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@ -16,6 +16,7 @@
package collector
import (
"fmt"
"strconv"
"unsafe"
@ -79,6 +80,7 @@ func getCPUTimes() ([]cputime, error) {
type statCollector struct {
cpu typedDesc
temp typedDesc
}
func init() {
@ -94,6 +96,11 @@ func NewStatCollector() (Collector, error) {
"Seconds the CPU spent in each mode.",
[]string{"cpu", "mode"}, nil,
), prometheus.CounterValue},
temp: typedDesc{prometheus.NewDesc(
prometheus.BuildFQName(Namespace, "cpu", "temperature_celsius"),
"CPU temperature",
[]string{"cpu"}, nil,
), prometheus.GaugeValue},
}, nil
}
@ -115,11 +122,18 @@ func (c *statCollector) Update(ch chan<- prometheus.Metric) (err error) {
return err
}
for cpu, t := range cpuTimes {
ch <- c.cpu.mustNewConstMetric(float64(t.user), strconv.Itoa(cpu), "user")
ch <- c.cpu.mustNewConstMetric(float64(t.nice), strconv.Itoa(cpu), "nice")
ch <- c.cpu.mustNewConstMetric(float64(t.sys), strconv.Itoa(cpu), "system")
ch <- c.cpu.mustNewConstMetric(float64(t.intr), strconv.Itoa(cpu), "interrupt")
ch <- c.cpu.mustNewConstMetric(float64(t.idle), strconv.Itoa(cpu), "idle")
lcpu := strconv.Itoa(cpu)
ch <- c.cpu.mustNewConstMetric(float64(t.user), lcpu, "user")
ch <- c.cpu.mustNewConstMetric(float64(t.nice), lcpu, "nice")
ch <- c.cpu.mustNewConstMetric(float64(t.sys), lcpu, "system")
ch <- c.cpu.mustNewConstMetric(float64(t.intr), lcpu, "interrupt")
ch <- c.cpu.mustNewConstMetric(float64(t.idle), lcpu, "idle")
temp, err := unix.SysctlUint32(fmt.Sprintf("dev.cpu.%d.temperature", cpu))
if err == nil {
ftemp := float64(temp-2732) / 10
ch <- c.temp.mustNewConstMetric(ftemp, lcpu)
}
}
return err
}