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pdh: convert all raw time counter types to seconds (#2776)

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Co-authored-by: Claude <noreply@anthropic.com>
Signed-off-by: Claude <noreply@anthropic.com>
This commit is contained in:
Jan-Otto Kröpke
2026-10-16 22:54:44 +02:00
committed by GitHub
co-authored by Claude
parent a9d5bbef48
commit da7bebc6b3
23 changed files with 313 additions and 246 deletions
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internal/collector/process/process.go
+5 -6
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@@ -42,11 +42,10 @@ const Name = "process"
const (
// windowsEpoch is the FILETIME of the Unix epoch, in 100ns intervals since 1601.
windowsEpoch int64 = 116444736000000000
// ticksPerSecond is the number of 100ns intervals per second.
// ticksPerSecond is the number of 100ns intervals per second. Dividing by it,
// like internal/pdh does, keeps the CPU time values bit-identical to the
// Process counter set.
ticksPerSecond = 1e7
// secondsPerTick converts 100ns intervals to seconds. Multiplying by it, like the perflib
// reader did, keeps the CPU time values bit-identical to the Process counter set.
secondsPerTick = 1 / ticksPerSecond
)
type Config struct {
@@ -486,14 +485,14 @@ func (c *Collector) collectProcess(ch chan<- prometheus.Metric, scrape *labelcac
ch <- scrape.MustNewConstMetric(
c.cpuTimeTotal,
prometheus.CounterValue,
float64(process.kernelTime)*secondsPerTick,
float64(process.kernelTime)/ticksPerSecond,
name, pid, "privileged",
)
ch <- scrape.MustNewConstMetric(
c.cpuTimeTotal,
prometheus.CounterValue,
float64(process.userTime)*secondsPerTick,
float64(process.userTime)/ticksPerSecond,
name, pid, "user",
)