Kiu/Node_Exporter
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Merge pull request #609 from rtreffer/fix-cpufreq-data

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Fix cpufreq statistics by converting kHz to Hz
This commit is contained in:
Tobias Schmidt 2017-06-27 23:51:14 +02:00 committed by GitHub
commit e27a1a1f0b
2 changed files with 14 additions and 12 deletions
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8
collector/cpu_linux.go
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@ -104,20 +104,22 @@ func (c *cpuCollector) updateCPUfreq(ch chan<- prometheus.Metric) error {
if _, err := os.Stat(filepath.Join(cpu, "cpufreq")); os.IsNotExist(err) {
log.Debugf("CPU %q is missing cpufreq", cpu)
} else {
// sysfs cpufreq values are kHz, thus multiply by 1000 to export base units (hz).
// See https://www.kernel.org/doc/Documentation/cpu-freq/user-guide.txt
if value, err = readUintFromFile(filepath.Join(cpu, "cpufreq/scaling_cur_freq")); err != nil {
return err
}
ch <- prometheus.MustNewConstMetric(c.cpuFreq, prometheus.GaugeValue, float64(value), cpuname)
ch <- prometheus.MustNewConstMetric(c.cpuFreq, prometheus.GaugeValue, float64(value)*1000.0, cpuname)
if value, err = readUintFromFile(filepath.Join(cpu, "cpufreq/scaling_min_freq")); err != nil {
return err
}
ch <- prometheus.MustNewConstMetric(c.cpuFreqMin, prometheus.GaugeValue, float64(value), cpuname)
ch <- prometheus.MustNewConstMetric(c.cpuFreqMin, prometheus.GaugeValue, float64(value)*1000.0, cpuname)
if value, err = readUintFromFile(filepath.Join(cpu, "cpufreq/scaling_max_freq")); err != nil {
return err
}
ch <- prometheus.MustNewConstMetric(c.cpuFreqMax, prometheus.GaugeValue, float64(value), cpuname)
ch <- prometheus.MustNewConstMetric(c.cpuFreqMax, prometheus.GaugeValue, float64(value)*1000.0, cpuname)
}
if _, err := os.Stat(filepath.Join(cpu, "thermal_throttle")); os.IsNotExist(err) {

18
collector/fixtures/e2e-output.txt
View File

@ -215,19 +215,19 @@ node_cpu_core_throttles_total{cpu="cpu1"} 0
node_cpu_core_throttles_total{cpu="cpu2"} 40
# HELP node_cpu_frequency_hertz Current cpu thread frequency in hertz.
# TYPE node_cpu_frequency_hertz gauge
node_cpu_frequency_hertz{cpu="cpu0"} 1.699981e+06
node_cpu_frequency_hertz{cpu="cpu1"} 1.699981e+06
node_cpu_frequency_hertz{cpu="cpu3"} 8000
node_cpu_frequency_hertz{cpu="cpu0"} 1.699981e+09
node_cpu_frequency_hertz{cpu="cpu1"} 1.699981e+09
node_cpu_frequency_hertz{cpu="cpu3"} 8e+06
# HELP node_cpu_frequency_max_hertz Maximum cpu thread frequency in hertz.
# TYPE node_cpu_frequency_max_hertz gauge
node_cpu_frequency_max_hertz{cpu="cpu0"} 3.7e+06
node_cpu_frequency_max_hertz{cpu="cpu1"} 3.7e+06
node_cpu_frequency_max_hertz{cpu="cpu3"} 4.2e+06
node_cpu_frequency_max_hertz{cpu="cpu0"} 3.7e+09
node_cpu_frequency_max_hertz{cpu="cpu1"} 3.7e+09
node_cpu_frequency_max_hertz{cpu="cpu3"} 4.2e+09
# HELP node_cpu_frequency_min_hertz Minimum cpu thread frequency in hertz.
# TYPE node_cpu_frequency_min_hertz gauge
node_cpu_frequency_min_hertz{cpu="cpu0"} 800000
node_cpu_frequency_min_hertz{cpu="cpu1"} 800000
node_cpu_frequency_min_hertz{cpu="cpu3"} 1000
node_cpu_frequency_min_hertz{cpu="cpu0"} 8e+08
node_cpu_frequency_min_hertz{cpu="cpu1"} 8e+08
node_cpu_frequency_min_hertz{cpu="cpu3"} 1e+06
# HELP node_cpu_package_throttles_total Number of times this cpu package has been throttled.
# TYPE node_cpu_package_throttles_total counter
node_cpu_package_throttles_total{cpu="cpu0"} 30