mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2025-04-18 19:24:05 +03:00
359 lines
9.9 KiB
Go
359 lines
9.9 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2025 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build windows
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package cpu
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import (
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"fmt"
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"log/slog"
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"sync"
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"github.com/alecthomas/kingpin/v2"
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"github.com/prometheus-community/windows_exporter/internal/mi"
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"github.com/prometheus-community/windows_exporter/internal/pdh"
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"github.com/prometheus-community/windows_exporter/internal/types"
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"github.com/prometheus-community/windows_exporter/internal/utils"
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"github.com/prometheus/client_golang/prometheus"
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)
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const Name = "cpu"
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type Config struct{}
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//nolint:gochecknoglobals
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var ConfigDefaults = Config{}
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type Collector struct {
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config Config
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perfDataCollector *pdh.Collector
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perfDataObject []perfDataCounterValues
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mu sync.Mutex
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processorRTCValues map[string]utils.Counter
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processorMPerfValues map[string]utils.Counter
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logicalProcessors *prometheus.Desc
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cStateSecondsTotal *prometheus.Desc
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timeTotal *prometheus.Desc
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interruptsTotal *prometheus.Desc
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dpcsTotal *prometheus.Desc
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clockInterruptsTotal *prometheus.Desc
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idleBreakEventsTotal *prometheus.Desc
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parkingStatus *prometheus.Desc
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processorFrequencyMHz *prometheus.Desc
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processorPerformance *prometheus.Desc
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processorMPerf *prometheus.Desc
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processorRTC *prometheus.Desc
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processorUtility *prometheus.Desc
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processorPrivilegedUtility *prometheus.Desc
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}
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func New(config *Config) *Collector {
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if config == nil {
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config = &ConfigDefaults
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}
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c := &Collector{
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config: *config,
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}
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return c
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}
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func NewWithFlags(_ *kingpin.Application) *Collector {
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return &Collector{}
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}
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func (c *Collector) GetName() string {
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return Name
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}
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func (c *Collector) Close() error {
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c.perfDataCollector.Close()
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return nil
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}
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func (c *Collector) Build(_ *slog.Logger, _ *mi.Session) error {
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c.mu = sync.Mutex{}
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c.logicalProcessors = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "logical_processor"),
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"Total number of logical processors",
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nil,
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nil,
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)
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c.cStateSecondsTotal = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "cstate_seconds_total"),
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"Time spent in low-power idle state",
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[]string{"core", "state"},
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nil,
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)
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c.timeTotal = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "time_total"),
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"Time that processor spent in different modes (dpc, idle, interrupt, privileged, user)",
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[]string{"core", "mode"},
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nil,
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)
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c.interruptsTotal = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "interrupts_total"),
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"Total number of received and serviced hardware interrupts",
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[]string{"core"},
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nil,
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)
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c.dpcsTotal = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "dpcs_total"),
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"Total number of received and serviced deferred procedure calls (DPCs)",
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[]string{"core"},
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nil,
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)
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c.clockInterruptsTotal = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "clock_interrupts_total"),
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"Total number of received and serviced clock tick interrupts",
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[]string{"core"},
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nil,
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)
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c.idleBreakEventsTotal = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "idle_break_events_total"),
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"Total number of time processor was woken from idle",
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[]string{"core"},
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nil,
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)
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c.parkingStatus = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "parking_status"),
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"Parking Status represents whether a processor is parked or not",
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[]string{"core"},
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nil,
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)
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c.processorFrequencyMHz = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "core_frequency_mhz"),
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"Core frequency in megahertz",
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[]string{"core"},
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nil,
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)
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c.processorPerformance = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "processor_performance_total"),
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"Processor Performance is the average performance of the processor while it is executing instructions, as a percentage of the nominal performance of the processor. On some processors, Processor Performance may exceed 100%",
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[]string{"core"},
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nil,
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)
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c.processorMPerf = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "processor_mperf_total"),
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"Processor MPerf is the number of TSC ticks incremented while executing instructions",
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[]string{"core"},
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nil,
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)
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c.processorRTC = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "processor_rtc_total"),
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"Processor RTC represents the number of RTC ticks made since the system booted. It should consistently be 64e6, and can be used to properly derive Processor Utility Rate",
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[]string{"core"},
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nil,
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)
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c.processorUtility = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "processor_utility_total"),
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"Processor Utility represents is the amount of time the core spends executing instructions",
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[]string{"core"},
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nil,
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)
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c.processorPrivilegedUtility = prometheus.NewDesc(
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prometheus.BuildFQName(types.Namespace, Name, "processor_privileged_utility_total"),
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"Processor Privileged Utility represents is the amount of time the core has spent executing instructions inside the kernel",
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[]string{"core"},
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nil,
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)
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c.processorRTCValues = map[string]utils.Counter{}
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c.processorMPerfValues = map[string]utils.Counter{}
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var err error
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c.perfDataCollector, err = pdh.NewCollector[perfDataCounterValues](pdh.CounterTypeRaw, "Processor Information", pdh.InstancesAll)
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if err != nil {
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return fmt.Errorf("failed to create Processor Information collector: %w", err)
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}
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return nil
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}
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func (c *Collector) Collect(ch chan<- prometheus.Metric) error {
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c.mu.Lock() // Lock is needed to prevent concurrent map access to c.processorRTCValues
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defer c.mu.Unlock()
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err := c.perfDataCollector.Collect(&c.perfDataObject)
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if err != nil {
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return fmt.Errorf("failed to collect Processor Information metrics: %w", err)
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}
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var coreCount float64
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for _, coreData := range c.perfDataObject {
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core := coreData.Name
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coreCount++
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var (
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counterProcessorRTCValues utils.Counter
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counterProcessorMPerfValues utils.Counter
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ok bool
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)
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if counterProcessorRTCValues, ok = c.processorRTCValues[core]; ok {
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counterProcessorRTCValues.AddValue(uint32(coreData.ProcessorUtilityRateSecondValue))
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} else {
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counterProcessorRTCValues = utils.NewCounter(uint32(coreData.ProcessorUtilityRateSecondValue))
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}
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c.processorRTCValues[core] = counterProcessorRTCValues
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if counterProcessorMPerfValues, ok = c.processorMPerfValues[core]; ok {
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counterProcessorMPerfValues.AddValue(uint32(coreData.ProcessorPerformanceSecondValue))
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} else {
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counterProcessorMPerfValues = utils.NewCounter(uint32(coreData.ProcessorPerformanceSecondValue))
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}
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c.processorMPerfValues[core] = counterProcessorMPerfValues
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ch <- prometheus.MustNewConstMetric(
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c.cStateSecondsTotal,
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prometheus.CounterValue,
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coreData.C1TimeSeconds,
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core, "c1",
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)
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ch <- prometheus.MustNewConstMetric(
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c.cStateSecondsTotal,
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prometheus.CounterValue,
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coreData.C2TimeSeconds,
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core, "c2",
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)
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ch <- prometheus.MustNewConstMetric(
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c.cStateSecondsTotal,
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prometheus.CounterValue,
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coreData.C3TimeSeconds,
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core, "c3",
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)
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ch <- prometheus.MustNewConstMetric(
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c.timeTotal,
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prometheus.CounterValue,
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coreData.IdleTimeSeconds,
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core, "idle",
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)
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ch <- prometheus.MustNewConstMetric(
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c.timeTotal,
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prometheus.CounterValue,
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coreData.InterruptTimeSeconds,
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core, "interrupt",
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)
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ch <- prometheus.MustNewConstMetric(
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c.timeTotal,
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prometheus.CounterValue,
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coreData.DpcTimeSeconds,
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core, "dpc",
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)
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ch <- prometheus.MustNewConstMetric(
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c.timeTotal,
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prometheus.CounterValue,
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coreData.PrivilegedTimeSeconds,
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core, "privileged",
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)
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ch <- prometheus.MustNewConstMetric(
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c.timeTotal,
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prometheus.CounterValue,
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coreData.UserTimeSeconds,
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core, "user",
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)
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ch <- prometheus.MustNewConstMetric(
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c.interruptsTotal,
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prometheus.CounterValue,
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coreData.InterruptsTotal,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.dpcsTotal,
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prometheus.CounterValue,
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coreData.DpcQueuedPerSecond,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.clockInterruptsTotal,
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prometheus.CounterValue,
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coreData.ClockInterruptsTotal,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.idleBreakEventsTotal,
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prometheus.CounterValue,
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coreData.IdleBreakEventsTotal,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.parkingStatus,
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prometheus.GaugeValue,
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coreData.ParkingStatus,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.processorFrequencyMHz,
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prometheus.GaugeValue,
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coreData.ProcessorFrequencyMHz,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.processorPerformance,
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prometheus.CounterValue,
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coreData.ProcessorPerformance,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.processorMPerf,
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prometheus.CounterValue,
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counterProcessorMPerfValues.Value(),
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.processorRTC,
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prometheus.CounterValue,
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counterProcessorRTCValues.Value(),
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.processorUtility,
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prometheus.CounterValue,
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coreData.ProcessorUtilityRate,
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core,
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)
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ch <- prometheus.MustNewConstMetric(
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c.processorPrivilegedUtility,
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prometheus.CounterValue,
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coreData.PrivilegedUtilitySeconds,
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core,
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)
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}
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ch <- prometheus.MustNewConstMetric(
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c.logicalProcessors,
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prometheus.GaugeValue,
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coreCount,
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)
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return nil
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}
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