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feat: add support for cpu freq governor metrics 

Signed-off-by: Lukas Coppens <lukas.coppens@be-mobile.com>
This commit is contained in:
Lukas Coppens 2023-03-08 13:18:50 +01:00 committed by Johannes 'fish' Ziemke
parent 8d3c594346
commit fe19fdd1e8
4 changed files with 44 additions and 3 deletions
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11
collector/cpufreq_common.go
View File

@ -23,17 +23,17 @@ import (
var (
cpuFreqHertzDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, cpuCollectorSubsystem, "frequency_hertz"),
"Current cpu thread frequency in hertz.",
"Current CPU thread frequency in hertz.",
[]string{"cpu"}, nil,
)
cpuFreqMinDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, cpuCollectorSubsystem, "frequency_min_hertz"),
"Minimum cpu thread frequency in hertz.",
"Minimum CPU thread frequency in hertz.",
[]string{"cpu"}, nil,
)
cpuFreqMaxDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, cpuCollectorSubsystem, "frequency_max_hertz"),
"Maximum cpu thread frequency in hertz.",
"Maximum CPU thread frequency in hertz.",
[]string{"cpu"}, nil,
)
cpuFreqScalingFreqDesc = prometheus.NewDesc(
@ -51,4 +51,9 @@ var (
"Maximum scaled CPU thread frequency in hertz.",
[]string{"cpu"}, nil,
)
cpuFreqScalingGovernorDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, cpuCollectorSubsystem, "scaling_governor"),
"Current enabled CPU frequency governor.",
[]string{"cpu", "governor"}, nil,
)
)

16
collector/cpufreq_linux.go
View File

@ -104,6 +104,22 @@ func (c *cpuFreqCollector) Update(ch chan<- prometheus.Metric) error {
stats.Name,
)
}
if stats.Governor != "" {
availableGovernors := strings.Split(stats.AvailableGovernors, " ")
for _, g := range availableGovernors {
state := 0
if g == stats.Governor {
state = 1
}
ch <- prometheus.MustNewConstMetric(
cpuFreqScalingGovernorDesc,
prometheus.GaugeValue,
float64(state),
stats.Name,
g,
)
}
}
}
return nil
}

10
collector/fixtures/e2e-64k-page-output.txt
View File

@ -326,6 +326,16 @@ node_cpu_scaling_frequency_min_hertz{cpu="0"} 8e+08
node_cpu_scaling_frequency_min_hertz{cpu="1"} 8e+08
node_cpu_scaling_frequency_min_hertz{cpu="2"} 1e+06
node_cpu_scaling_frequency_min_hertz{cpu="3"} 1e+06
# HELP node_cpu_scaling_governor Current enabled CPU frequency governor.
# TYPE node_cpu_scaling_governor gauge
node_cpu_scaling_governor{cpu="0",governor="performance"} 0
node_cpu_scaling_governor{cpu="0",governor="powersave"} 1
node_cpu_scaling_governor{cpu="1",governor="performance"} 0
node_cpu_scaling_governor{cpu="1",governor="powersave"} 1
node_cpu_scaling_governor{cpu="2",governor="performance"} 0
node_cpu_scaling_governor{cpu="2",governor="powersave"} 1
node_cpu_scaling_governor{cpu="3",governor="performance"} 0
node_cpu_scaling_governor{cpu="3",governor="powersave"} 1
# HELP node_cpu_seconds_total Seconds the CPUs spent in each mode.
# TYPE node_cpu_seconds_total counter
node_cpu_seconds_total{cpu="0",mode="idle"} 10870.69

10
collector/fixtures/e2e-output.txt
View File

@ -348,6 +348,16 @@ node_cpu_scaling_frequency_min_hertz{cpu="0"} 8e+08
node_cpu_scaling_frequency_min_hertz{cpu="1"} 8e+08
node_cpu_scaling_frequency_min_hertz{cpu="2"} 1e+06
node_cpu_scaling_frequency_min_hertz{cpu="3"} 1e+06
# HELP node_cpu_scaling_governor Current enabled CPU frequency governor.
# TYPE node_cpu_scaling_governor gauge
node_cpu_scaling_governor{cpu="0",governor="performance"} 0
node_cpu_scaling_governor{cpu="0",governor="powersave"} 1
node_cpu_scaling_governor{cpu="1",governor="performance"} 0
node_cpu_scaling_governor{cpu="1",governor="powersave"} 1
node_cpu_scaling_governor{cpu="2",governor="performance"} 0
node_cpu_scaling_governor{cpu="2",governor="powersave"} 1
node_cpu_scaling_governor{cpu="3",governor="performance"} 0
node_cpu_scaling_governor{cpu="3",governor="powersave"} 1
# HELP node_cpu_seconds_total Seconds the CPUs spent in each mode.
# TYPE node_cpu_seconds_total counter
node_cpu_seconds_total{cpu="0",mode="idle"} 10870.69