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This exposes RAPL statistics from /sys/class/powercap. Co-Authored-By: Ben Kochie <superq@gmail.com> Signed-off-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| // Copyright 2019 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. | ||
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| // +build !norapl | ||
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| package collector | ||
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| import ( | ||
| "strconv" | ||
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| "github.com/go-kit/kit/log" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/procfs/sysfs" | ||
| ) | ||
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| type raplCollector struct { | ||
| fs sysfs.FS | ||
| } | ||
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| func init() { | ||
| registerCollector("rapl", defaultEnabled, NewRaplCollector) | ||
| } | ||
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| // NewRaplCollector returns a new Collector exposing RAPL metrics. | ||
| func NewRaplCollector(logger log.Logger) (Collector, error) { | ||
| fs, err := sysfs.NewFS(*sysPath) | ||
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| if err != nil { | ||
| return nil, err | ||
| } | ||
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| collector := raplCollector{ | ||
| fs: fs, | ||
| } | ||
| return &collector, nil | ||
| } | ||
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| // Update implements Collector and exposes RAPL related metrics. | ||
| func (c *raplCollector) Update(ch chan<- prometheus.Metric) error { | ||
| // nil zones are fine when platform doesn't have powercap files present. | ||
| zones, err := sysfs.GetRaplZones(c.fs) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
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| for _, rz := range zones { | ||
| newMicrojoules, err := rz.GetEnergyMicrojoules() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| index := strconv.Itoa(rz.Index) | ||
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| descriptor := prometheus.NewDesc( | ||
| prometheus.BuildFQName(namespace, "rapl", rz.Name+"_joules_total"), | ||
| "Current RAPL "+rz.Name+" value in joules", | ||
| []string{"index"}, nil, | ||
| ) | ||
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| ch <- prometheus.MustNewConstMetric( | ||
| descriptor, | ||
| prometheus.CounterValue, | ||
| float64(newMicrojoules)/1000000.0, | ||
| index, | ||
| ) | ||
| } | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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@@ -30,6 +30,7 @@ enabled_collectors=$(cat << COLLECTORS | |
| nfsd | ||
| pressure | ||
| qdisc | ||
| rapl | ||
| schedstat | ||
| sockstat | ||
| stat | ||
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