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rapl_linux collector

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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>
This commit is contained in:
Ukri Niemimuukko 2020-01-17 14:32:16 +02:00 committed by Johannes 'fish' Ziemke
parent 9bb37873a8
commit eac3e30f7f
7 changed files with 222 additions and 0 deletions
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1
CHANGELOG.md
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@ -22,6 +22,7 @@
* [FEATURE] Add new thermal_zone collector #1425
* [FEATURE] Add new cooling_device metrics to thermal zone collector #1445
* [FEATURE] Add new softnet collector #1576
* [FEATURE] Add RAPL collector #1523
* [ENHANCEMENT] Collect InfiniBand port state and physical state #1357
* [ENHANCEMENT] Include additional XFS runtime statistics. #1423
* [ENHANCEMENT] Report non-fatal collection errors in the exporter metric. #1439

1
README.md
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@ -51,6 +51,7 @@ netstat | Exposes network statistics from `/proc/net/netstat`. This is the same
nfs | Exposes NFS client statistics from `/proc/net/rpc/nfs`. This is the same information as `nfsstat -c`. | Linux
nfsd | Exposes NFS kernel server statistics from `/proc/net/rpc/nfsd`. This is the same information as `nfsstat -s`. | Linux
pressure | Exposes pressure stall statistics from `/proc/pressure/`. | Linux (kernel 4.20+ and/or [CONFIG\_PSI](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/accounting/psi.txt))
rapl | Exposes various statistics from `/sys/class/powercap`. | Linux
schedstat | Exposes task scheduler statistics from `/proc/schedstat`. | Linux
sockstat | Exposes various statistics from `/proc/net/sockstat`. | Linux
softnet | Exposes statistics from `/proc/net/softnet_stat`. | Linux

7
collector/fixtures/e2e-64k-page-output.txt
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@ -2498,6 +2498,12 @@ node_qdisc_packets_total{device="wlan0",kind="fq"} 42
# TYPE node_qdisc_requeues_total counter
node_qdisc_requeues_total{device="eth0",kind="pfifo_fast"} 2
node_qdisc_requeues_total{device="wlan0",kind="fq"} 1
# HELP node_rapl_core_joules_total Current RAPL core value in joules
# TYPE node_rapl_core_joules_total counter
node_rapl_core_joules_total{index="0"} 118821.284256
# HELP node_rapl_package_joules_total Current RAPL package value in joules
# TYPE node_rapl_package_joules_total counter
node_rapl_package_joules_total{index="0"} 240422.366267
# HELP node_schedstat_running_seconds_total Number of seconds CPU spent running a process.
# TYPE node_schedstat_running_seconds_total counter
node_schedstat_running_seconds_total{cpu="0"} 2.045936778163039e+06
@ -2545,6 +2551,7 @@ node_scrape_collector_success{collector="powersupplyclass"} 1
node_scrape_collector_success{collector="pressure"} 1
node_scrape_collector_success{collector="processes"} 1
node_scrape_collector_success{collector="qdisc"} 1
node_scrape_collector_success{collector="rapl"} 1
node_scrape_collector_success{collector="schedstat"} 1
node_scrape_collector_success{collector="sockstat"} 1
node_scrape_collector_success{collector="softnet"} 1

7
collector/fixtures/e2e-output.txt
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@ -2519,6 +2519,12 @@ node_qdisc_packets_total{device="wlan0",kind="fq"} 42
# TYPE node_qdisc_requeues_total counter
node_qdisc_requeues_total{device="eth0",kind="pfifo_fast"} 2
node_qdisc_requeues_total{device="wlan0",kind="fq"} 1
# HELP node_rapl_core_joules_total Current RAPL core value in joules
# TYPE node_rapl_core_joules_total counter
node_rapl_core_joules_total{index="0"} 118821.284256
# HELP node_rapl_package_joules_total Current RAPL package value in joules
# TYPE node_rapl_package_joules_total counter
node_rapl_package_joules_total{index="0"} 240422.366267
# HELP node_schedstat_running_seconds_total Number of seconds CPU spent running a process.
# TYPE node_schedstat_running_seconds_total counter
node_schedstat_running_seconds_total{cpu="0"} 2.045936778163039e+06
@ -2566,6 +2572,7 @@ node_scrape_collector_success{collector="powersupplyclass"} 1
node_scrape_collector_success{collector="pressure"} 1
node_scrape_collector_success{collector="processes"} 1
node_scrape_collector_success{collector="qdisc"} 1
node_scrape_collector_success{collector="rapl"} 1
node_scrape_collector_success{collector="schedstat"} 1
node_scrape_collector_success{collector="sockstat"} 1
node_scrape_collector_success{collector="softnet"} 1

128
collector/fixtures/sys.ttar
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@ -1274,6 +1274,134 @@ Lines: 1
11660000
Mode: 444
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/class/powercap
Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/class/powercap/intel-rapl
Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl/enabled
Lines: 1
1
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl/uevent
Lines: 0
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/class/powercap/intel-rapl:0
Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/constraint_0_max_power_uw
Lines: 1
95000000
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/constraint_0_name
Lines: 1
long_term
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/constraint_0_power_limit_uw
Lines: 1
4090000000
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/constraint_0_time_window_us
Lines: 1
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Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/constraint_1_max_power_uw
Lines: 1
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Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/constraint_1_name
Lines: 1
short_term
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/constraint_1_power_limit_uw
Lines: 1
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Path: sys/class/powercap/intel-rapl:0/constraint_1_time_window_us
Lines: 1
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Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/enabled
Lines: 1
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Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/energy_uj
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Path: sys/class/powercap/intel-rapl:0/max_energy_range_uj
Lines: 1
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Path: sys/class/powercap/intel-rapl:0/name
Lines: 1
package-0
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0/uevent
Lines: 0
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Mode: 755
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/powercap/intel-rapl:0:0/constraint_0_max_power_uw
Lines: 0
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Path: sys/class/powercap/intel-rapl:0:0/constraint_0_name
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Mode: 644
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Path: sys/class/powercap/intel-rapl:0:0/name
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core
Mode: 644
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/class/thermal
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77
collector/rapl_linux.go Normal file
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@ -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.
// +build !norapl
package collector
import (
"strconv"
"github.com/go-kit/kit/log"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/procfs/sysfs"
)
type raplCollector struct {
fs sysfs.FS
}
func init() {
registerCollector("rapl", defaultEnabled, NewRaplCollector)
}
// NewRaplCollector returns a new Collector exposing RAPL metrics.
func NewRaplCollector(logger log.Logger) (Collector, error) {
fs, err := sysfs.NewFS(*sysPath)
if err != nil {
return nil, err
}
collector := raplCollector{
fs: fs,
}
return &collector, nil
}
// 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
}
for _, rz := range zones {
newMicrojoules, err := rz.GetEnergyMicrojoules()
if err != nil {
return err
}
index := strconv.Itoa(rz.Index)
descriptor := prometheus.NewDesc(
prometheus.BuildFQName(namespace, "rapl", rz.Name+"_joules_total"),
"Current RAPL "+rz.Name+" value in joules",
[]string{"index"}, nil,
)
ch <- prometheus.MustNewConstMetric(
descriptor,
prometheus.CounterValue,
float64(newMicrojoules)/1000000.0,
index,
)
}
return nil
}

1
end-to-end-test.sh
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@ -30,6 +30,7 @@ enabled_collectors=$(cat << COLLECTORS
nfsd
pressure
qdisc
rapl
schedstat
sockstat
stat