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Converted PagingFreeBytes to use perflib

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Signed-off-by: Ben Ridley <benridley29@gmail.com>
This commit is contained in:
retryW
2021-01-15 15:08:33 +11:00
committed by Ben Ridley
parent 6f941044c7
commit 7bd58abd27
1 changed files with 32 additions and 12 deletions
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44
collector/os.go
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@@ -4,6 +4,7 @@ package collector
import (
"fmt"
"strings"
"time"
"github.com/prometheus-community/windows_exporter/headers/custom"
@@ -15,7 +16,7 @@ import (
)
func init() {
registerCollector("os", NewOSCollector)
registerCollector("os", NewOSCollector, "Paging File")
}
// A OSCollector is a Prometheus collector for WMI metrics
@@ -35,6 +36,12 @@ type OSCollector struct {
Timezone *prometheus.Desc
}
type pagingFileCounter struct {
Name string
Usage float64 `perflib:"% Usage"`
UsagePeak float64 `perflib:"% Usage Peak"`
}
// NewOSCollector ...
func NewOSCollector() (Collector, error) {
const subsystem = "os"
@@ -124,7 +131,7 @@ func NewOSCollector() (Collector, error) {
// Collect sends the metric values for each metric
// to the provided prometheus Metric channel.
func (c *OSCollector) Collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) error {
if desc, err := c.collect(ch); err != nil {
if desc, err := c.collect(ctx, ch); err != nil {
log.Error("failed collecting os metrics:", desc, err)
return err
}
@@ -149,7 +156,7 @@ type Win32_OperatingSystem struct {
Version string
}
func (c *OSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
func (c *OSCollector) collect(ctx *ScrapeContext, ch chan<- prometheus.Metric) (*prometheus.Desc, error) {
/*var dst []Win32_OperatingSystem
q := queryAll(&dst)
if err := wmi.Query(q, &dst); err != nil {
@@ -203,13 +210,31 @@ func (c *OSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, er
timezoneName,
)
fsipf, err := custom.GetSizeStoredInPagingFiles()
if err != nil {
return nil, err
}
var pfc = make([]pagingFileCounter, 0)
if err := unmarshalObject(ctx.perfObjects["Paging File"], &pfc); err != nil {
return nil, err
}
var pfbPercent float64
for _, pageFile := range pfc {
if strings.Contains(strings.ToLower(pageFile.Name), "_total") {
pfbPercent = pageFile.Usage
} else {
continue
}
}
fpbNum := float64(fsipf) - (float64(fsipf) / float64(100) * pfbPercent)
ch <- prometheus.MustNewConstMetric(
c.PagingFreeBytes,
prometheus.GaugeValue,
float64(1234567),
// Cannot find a way to get this without WMI.
// Can get from CIM_OperatingSystem which is where WMI gets it from, but I can't figure out how to access this from cimwin32.dll
// https://docs.microsoft.com/en-us/windows/win32/cimwin32prov/cim-operatingsystem#properties
float64(fpbNum),
)
ch <- prometheus.MustNewConstMetric(
@@ -250,11 +275,6 @@ func (c *OSCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, er
float64(nwgi.Wki102_logged_on_users),
)
fsipf, err := custom.GetSizeStoredInPagingFiles()
if err != nil {
return nil, err
}
ch <- prometheus.MustNewConstMetric(
c.PagingLimitBytes,
prometheus.GaugeValue,