mirror of
https://github.com/prometheus/node_exporter
synced 2024-12-11 17:06:04 +00:00
825 lines
20 KiB
Go
825 lines
20 KiB
Go
// Copyright 2019 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 !noperf
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// +build !noperf
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package collector
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import (
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"fmt"
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"runtime"
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"strconv"
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"strings"
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"github.com/go-kit/log"
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"github.com/go-kit/log/level"
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"github.com/hodgesds/perf-utils"
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"github.com/prometheus/client_golang/prometheus"
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"golang.org/x/sys/unix"
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kingpin "gopkg.in/alecthomas/kingpin.v2"
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)
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const (
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perfSubsystem = "perf"
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)
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var (
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perfCPUsFlag = kingpin.Flag("collector.perf.cpus", "List of CPUs from which perf metrics should be collected").Default("").String()
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perfTracepointFlag = kingpin.Flag("collector.perf.tracepoint", "perf tracepoint that should be collected").Strings()
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)
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func init() {
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registerCollector(perfSubsystem, defaultDisabled, NewPerfCollector)
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}
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// perfTracepointFlagToTracepoints returns the set of configured tracepoints.
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func perfTracepointFlagToTracepoints(tracepointsFlag []string) ([]*perfTracepoint, error) {
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tracepoints := make([]*perfTracepoint, len(tracepointsFlag))
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for i, tracepoint := range tracepointsFlag {
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split := strings.Split(tracepoint, ":")
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if len(split) != 2 {
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return nil, fmt.Errorf("Invalid tracepoint config %v", tracepoint)
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}
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tracepoints[i] = &perfTracepoint{
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subsystem: split[0],
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event: split[1],
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}
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}
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return tracepoints, nil
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}
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// perfCPUFlagToCPUs returns a set of CPUs for the perf collectors to monitor.
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func perfCPUFlagToCPUs(cpuFlag string) ([]int, error) {
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var err error
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cpus := []int{}
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for _, subset := range strings.Split(cpuFlag, ",") {
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// First parse a single CPU.
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if !strings.Contains(subset, "-") {
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cpu, err := strconv.Atoi(subset)
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if err != nil {
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return nil, err
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}
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cpus = append(cpus, cpu)
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continue
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}
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stride := 1
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// Handle strides, ie 1-10:5 should yield 1,5,10
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strideSet := strings.Split(subset, ":")
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if len(strideSet) == 2 {
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stride, err = strconv.Atoi(strideSet[1])
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if err != nil {
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return nil, err
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}
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}
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rangeSet := strings.Split(strideSet[0], "-")
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if len(rangeSet) != 2 {
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return nil, fmt.Errorf("invalid flag value %q", cpuFlag)
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}
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start, err := strconv.Atoi(rangeSet[0])
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if err != nil {
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return nil, err
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}
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end, err := strconv.Atoi(rangeSet[1])
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if err != nil {
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return nil, err
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}
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for i := start; i <= end; i += stride {
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cpus = append(cpus, i)
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}
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}
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return cpus, nil
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}
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// perfTracepoint is a struct for holding tracepoint information.
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type perfTracepoint struct {
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subsystem string
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event string
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}
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// label returns the tracepoint name in the format of subsystem_tracepoint.
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func (t *perfTracepoint) label() string {
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return t.subsystem + "_" + t.event
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}
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// tracepoint returns the tracepoint name in the format of subsystem:tracepoint.
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func (t *perfTracepoint) tracepoint() string {
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return t.subsystem + ":" + t.event
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}
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// perfCollector is a Collector that uses the perf subsystem to collect
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// metrics. It uses perf_event_open an ioctls for profiling. Due to the fact
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// that the perf subsystem is highly dependent on kernel configuration and
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// settings not all profiler values may be exposed on the target system at any
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// given time.
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type perfCollector struct {
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hwProfilerCPUMap map[*perf.HardwareProfiler]int
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swProfilerCPUMap map[*perf.SoftwareProfiler]int
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cacheProfilerCPUMap map[*perf.CacheProfiler]int
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perfHwProfilers map[int]*perf.HardwareProfiler
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perfSwProfilers map[int]*perf.SoftwareProfiler
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perfCacheProfilers map[int]*perf.CacheProfiler
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desc map[string]*prometheus.Desc
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logger log.Logger
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tracepointCollector *perfTracepointCollector
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}
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type perfTracepointCollector struct {
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// desc is the mapping of subsystem to tracepoint *prometheus.Desc.
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descs map[string]map[string]*prometheus.Desc
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// collection order is the sorted configured collection order of the profiler.
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collectionOrder []string
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logger log.Logger
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profilers map[int]perf.GroupProfiler
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}
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// update is used collect all tracepoints across all tracepoint profilers.
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func (c *perfTracepointCollector) update(ch chan<- prometheus.Metric) error {
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for cpu := range c.profilers {
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if err := c.updateCPU(cpu, ch); err != nil {
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return err
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}
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}
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return nil
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}
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// updateCPU is used to update metrics per CPU profiler.
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func (c *perfTracepointCollector) updateCPU(cpu int, ch chan<- prometheus.Metric) error {
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profiler := c.profilers[cpu]
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p, err := profiler.Profile()
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if err != nil {
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level.Error(c.logger).Log("msg", "Failed to collect tracepoint profile", "err", err)
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return err
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}
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cpuid := strconv.Itoa(cpu)
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for i, value := range p.Values {
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// Get the Desc from the ordered group value.
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descKey := c.collectionOrder[i]
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descKeySlice := strings.Split(descKey, ":")
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ch <- prometheus.MustNewConstMetric(
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c.descs[descKeySlice[0]][descKeySlice[1]],
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prometheus.CounterValue,
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float64(value),
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cpuid,
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)
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}
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return nil
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}
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// newPerfTracepointCollector returns a configured perfTracepointCollector.
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func newPerfTracepointCollector(
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logger log.Logger,
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tracepointsFlag []string,
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cpus []int,
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) (*perfTracepointCollector, error) {
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tracepoints, err := perfTracepointFlagToTracepoints(tracepointsFlag)
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if err != nil {
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return nil, err
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}
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collectionOrder := make([]string, len(tracepoints))
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descs := map[string]map[string]*prometheus.Desc{}
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eventAttrs := make([]unix.PerfEventAttr, len(tracepoints))
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for i, tracepoint := range tracepoints {
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eventAttr, err := perf.TracepointEventAttr(tracepoint.subsystem, tracepoint.event)
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if err != nil {
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return nil, err
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}
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eventAttrs[i] = *eventAttr
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collectionOrder[i] = tracepoint.tracepoint()
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if _, ok := descs[tracepoint.subsystem]; !ok {
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descs[tracepoint.subsystem] = map[string]*prometheus.Desc{}
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}
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descs[tracepoint.subsystem][tracepoint.event] = prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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tracepoint.label(),
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),
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"Perf tracepoint "+tracepoint.tracepoint(),
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[]string{"cpu"},
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nil,
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)
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}
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profilers := make(map[int]perf.GroupProfiler, len(cpus))
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for _, cpu := range cpus {
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profiler, err := perf.NewGroupProfiler(-1, cpu, 0, eventAttrs...)
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if err != nil {
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return nil, err
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}
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profilers[cpu] = profiler
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}
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c := &perfTracepointCollector{
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descs: descs,
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collectionOrder: collectionOrder,
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profilers: profilers,
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logger: logger,
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}
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for _, profiler := range c.profilers {
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if err := profiler.Start(); err != nil {
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return nil, err
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}
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}
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return c, nil
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}
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// NewPerfCollector returns a new perf based collector, it creates a profiler
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// per CPU.
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func NewPerfCollector(logger log.Logger) (Collector, error) {
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collector := &perfCollector{
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perfHwProfilers: map[int]*perf.HardwareProfiler{},
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perfSwProfilers: map[int]*perf.SoftwareProfiler{},
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perfCacheProfilers: map[int]*perf.CacheProfiler{},
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hwProfilerCPUMap: map[*perf.HardwareProfiler]int{},
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swProfilerCPUMap: map[*perf.SoftwareProfiler]int{},
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cacheProfilerCPUMap: map[*perf.CacheProfiler]int{},
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logger: logger,
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}
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var (
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cpus []int
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err error
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)
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if perfCPUsFlag != nil && *perfCPUsFlag != "" {
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cpus, err = perfCPUFlagToCPUs(*perfCPUsFlag)
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if err != nil {
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return nil, err
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}
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} else {
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cpus = make([]int, runtime.NumCPU())
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for i := range cpus {
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cpus[i] = i
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}
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}
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// First configure any tracepoints.
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if *perfTracepointFlag != nil && len(*perfTracepointFlag) > 0 {
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tracepointCollector, err := newPerfTracepointCollector(logger, *perfTracepointFlag, cpus)
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if err != nil {
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return nil, err
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}
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collector.tracepointCollector = tracepointCollector
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}
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// Configure all profilers for the specified CPUs.
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for _, cpu := range cpus {
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// Use -1 to profile all processes on the CPU, see:
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// man perf_event_open
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hwProf, err := perf.NewHardwareProfiler(-1, cpu)
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if err != nil {
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return nil, err
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}
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if err := hwProf.Start(); err != nil {
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return nil, err
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}
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collector.perfHwProfilers[cpu] = &hwProf
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collector.hwProfilerCPUMap[&hwProf] = cpu
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swProf, err := perf.NewSoftwareProfiler(-1, cpu)
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if err != nil {
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return nil, err
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}
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if err := swProf.Start(); err != nil {
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return nil, err
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}
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collector.perfSwProfilers[cpu] = &swProf
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collector.swProfilerCPUMap[&swProf] = cpu
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cacheProf, err := perf.NewCacheProfiler(-1, cpu)
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if err != nil {
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return nil, err
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}
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if err := cacheProf.Start(); err != nil {
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return nil, err
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}
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collector.perfCacheProfilers[cpu] = &cacheProf
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collector.cacheProfilerCPUMap[&cacheProf] = cpu
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}
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collector.desc = map[string]*prometheus.Desc{
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"cpucycles_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cpucycles_total",
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),
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"Number of CPU cycles (frequency scaled)",
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[]string{"cpu"},
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nil,
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),
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"instructions_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"instructions_total",
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),
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"Number of CPU instructions",
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[]string{"cpu"},
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nil,
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),
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"branch_instructions_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"branch_instructions_total",
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),
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"Number of CPU branch instructions",
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[]string{"cpu"},
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nil,
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),
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"branch_misses_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"branch_misses_total",
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),
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"Number of CPU branch misses",
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[]string{"cpu"},
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nil,
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),
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"cache_refs_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_refs_total",
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),
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"Number of cache references (non frequency scaled)",
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[]string{"cpu"},
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nil,
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),
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"cache_misses_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_misses_total",
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),
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"Number of cache misses",
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[]string{"cpu"},
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nil,
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),
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"ref_cpucycles_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"ref_cpucycles_total",
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),
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"Number of CPU cycles",
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[]string{"cpu"},
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nil,
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),
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"page_faults_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"page_faults_total",
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),
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"Number of page faults",
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[]string{"cpu"},
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nil,
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),
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"context_switches_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"context_switches_total",
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),
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"Number of context switches",
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[]string{"cpu"},
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nil,
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),
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"cpu_migrations_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cpu_migrations_total",
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),
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"Number of CPU process migrations",
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[]string{"cpu"},
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nil,
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),
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"minor_faults_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"minor_faults_total",
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),
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"Number of minor page faults",
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[]string{"cpu"},
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nil,
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),
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"major_faults_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"major_faults_total",
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),
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"Number of major page faults",
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[]string{"cpu"},
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nil,
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),
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"cache_l1d_read_hits_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_l1d_read_hits_total",
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),
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"Number L1 data cache read hits",
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[]string{"cpu"},
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nil,
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),
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"cache_l1d_read_misses_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_l1d_read_misses_total",
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),
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"Number L1 data cache read misses",
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[]string{"cpu"},
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nil,
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),
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"cache_l1d_write_hits_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_l1d_write_hits_total",
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),
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"Number L1 data cache write hits",
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[]string{"cpu"},
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nil,
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),
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"cache_l1_instr_read_misses_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_l1_instr_read_misses_total",
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),
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"Number instruction L1 instruction read misses",
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[]string{"cpu"},
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nil,
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),
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"cache_tlb_instr_read_hits_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_tlb_instr_read_hits_total",
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),
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"Number instruction TLB read hits",
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[]string{"cpu"},
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nil,
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),
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"cache_tlb_instr_read_misses_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_tlb_instr_read_misses_total",
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),
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"Number instruction TLB read misses",
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[]string{"cpu"},
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nil,
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),
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"cache_ll_read_hits_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_ll_read_hits_total",
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),
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"Number last level read hits",
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[]string{"cpu"},
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nil,
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),
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"cache_ll_read_misses_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_ll_read_misses_total",
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),
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"Number last level read misses",
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[]string{"cpu"},
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nil,
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),
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"cache_ll_write_hits_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_ll_write_hits_total",
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),
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"Number last level write hits",
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[]string{"cpu"},
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nil,
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),
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"cache_ll_write_misses_total": prometheus.NewDesc(
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prometheus.BuildFQName(
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namespace,
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perfSubsystem,
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"cache_ll_write_misses_total",
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),
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"Number last level write misses",
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[]string{"cpu"},
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nil,
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),
|
|
"cache_bpu_read_hits_total": prometheus.NewDesc(
|
|
prometheus.BuildFQName(
|
|
namespace,
|
|
perfSubsystem,
|
|
"cache_bpu_read_hits_total",
|
|
),
|
|
"Number BPU read hits",
|
|
[]string{"cpu"},
|
|
nil,
|
|
),
|
|
"cache_bpu_read_misses_total": prometheus.NewDesc(
|
|
prometheus.BuildFQName(
|
|
namespace,
|
|
perfSubsystem,
|
|
"cache_bpu_read_misses_total",
|
|
),
|
|
"Number BPU read misses",
|
|
[]string{"cpu"},
|
|
nil,
|
|
),
|
|
}
|
|
|
|
return collector, nil
|
|
}
|
|
|
|
// Update implements the Collector interface and will collect metrics per CPU.
|
|
func (c *perfCollector) Update(ch chan<- prometheus.Metric) error {
|
|
if err := c.updateHardwareStats(ch); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := c.updateSoftwareStats(ch); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := c.updateCacheStats(ch); err != nil {
|
|
return err
|
|
}
|
|
if c.tracepointCollector != nil {
|
|
return c.tracepointCollector.update(ch)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *perfCollector) updateHardwareStats(ch chan<- prometheus.Metric) error {
|
|
for _, profiler := range c.perfHwProfilers {
|
|
hwProfile, err := (*profiler).Profile()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if hwProfile == nil {
|
|
continue
|
|
}
|
|
|
|
cpuid := strconv.Itoa(c.hwProfilerCPUMap[profiler])
|
|
|
|
if hwProfile.CPUCycles != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cpucycles_total"],
|
|
prometheus.CounterValue, float64(*hwProfile.CPUCycles),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if hwProfile.Instructions != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["instructions_total"],
|
|
prometheus.CounterValue, float64(*hwProfile.Instructions),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if hwProfile.BranchInstr != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["branch_instructions_total"],
|
|
prometheus.CounterValue, float64(*hwProfile.BranchInstr),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if hwProfile.BranchMisses != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["branch_misses_total"],
|
|
prometheus.CounterValue, float64(*hwProfile.BranchMisses),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if hwProfile.CacheRefs != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_refs_total"],
|
|
prometheus.CounterValue, float64(*hwProfile.CacheRefs),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if hwProfile.CacheMisses != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_misses_total"],
|
|
prometheus.CounterValue, float64(*hwProfile.CacheMisses),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if hwProfile.RefCPUCycles != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["ref_cpucycles_total"],
|
|
prometheus.CounterValue, float64(*hwProfile.RefCPUCycles),
|
|
cpuid,
|
|
)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *perfCollector) updateSoftwareStats(ch chan<- prometheus.Metric) error {
|
|
for _, profiler := range c.perfSwProfilers {
|
|
swProfile, err := (*profiler).Profile()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if swProfile == nil {
|
|
continue
|
|
}
|
|
|
|
cpuid := strconv.Itoa(c.swProfilerCPUMap[profiler])
|
|
|
|
if swProfile.PageFaults != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["page_faults_total"],
|
|
prometheus.CounterValue, float64(*swProfile.PageFaults),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if swProfile.ContextSwitches != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["context_switches_total"],
|
|
prometheus.CounterValue, float64(*swProfile.ContextSwitches),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if swProfile.CPUMigrations != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cpu_migrations_total"],
|
|
prometheus.CounterValue, float64(*swProfile.CPUMigrations),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if swProfile.MinorPageFaults != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["minor_faults_total"],
|
|
prometheus.CounterValue, float64(*swProfile.MinorPageFaults),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if swProfile.MajorPageFaults != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["major_faults_total"],
|
|
prometheus.CounterValue, float64(*swProfile.MajorPageFaults),
|
|
cpuid,
|
|
)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *perfCollector) updateCacheStats(ch chan<- prometheus.Metric) error {
|
|
for _, profiler := range c.perfCacheProfilers {
|
|
cacheProfile, err := (*profiler).Profile()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if cacheProfile == nil {
|
|
continue
|
|
}
|
|
|
|
cpuid := strconv.Itoa(c.cacheProfilerCPUMap[profiler])
|
|
|
|
if cacheProfile.L1DataReadHit != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_l1d_read_hits_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.L1DataReadHit),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.L1DataReadMiss != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_l1d_read_misses_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.L1DataReadMiss),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.L1DataWriteHit != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_l1d_write_hits_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.L1DataWriteHit),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.L1InstrReadMiss != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_l1_instr_read_misses_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.L1InstrReadMiss),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.InstrTLBReadHit != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_tlb_instr_read_hits_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.InstrTLBReadHit),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.InstrTLBReadMiss != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_tlb_instr_read_misses_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.InstrTLBReadMiss),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.LastLevelReadHit != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_ll_read_hits_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.LastLevelReadHit),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.LastLevelReadMiss != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_ll_read_misses_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.LastLevelReadMiss),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.LastLevelWriteHit != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_ll_write_hits_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.LastLevelWriteHit),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.LastLevelWriteMiss != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_ll_write_misses_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.LastLevelWriteMiss),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.BPUReadHit != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_bpu_read_hits_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.BPUReadHit),
|
|
cpuid,
|
|
)
|
|
}
|
|
|
|
if cacheProfile.BPUReadMiss != nil {
|
|
ch <- prometheus.MustNewConstMetric(
|
|
c.desc["cache_bpu_read_misses_total"],
|
|
prometheus.CounterValue, float64(*cacheProfile.BPUReadMiss),
|
|
cpuid,
|
|
)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|