cpumon

Documentation

Overview

Package cpumon provides CPU utilization monitoring with platform-specific implementations.

Index

• type CPUSample
• type Monitor
• type ProcStat
  • func NewProcStat() (*ProcStat, error)
  • func (p *ProcStat) Close() error
  • func (p *ProcStat) Sample() (CPUSample, error)
• type Synthetic
  • func NewSynthetic(initial float64) *Synthetic
  • func (s *Synthetic) Sample() (CPUSample, error)
  • func (s *Synthetic) Set(util float64)

Types

type CPUSample

type CPUSample struct {
	Utilization float64
	Timestamp   time.Time
}

CPUSample is a point-in-time CPU utilization measurement.

type Monitor

type Monitor interface {
	Sample() (CPUSample, error)
}

Monitor samples CPU utilization.

type ProcStat

type ProcStat struct {
	// contains filtered or unexported fields
}

ProcStat reads CPU utilization from /proc/stat.

func NewProcStat

func NewProcStat() (*ProcStat, error)

NewProcStat creates a /proc/stat-based CPU monitor.

func (*ProcStat) Close

func (p *ProcStat) Close() error

Close releases the file handle.

func (*ProcStat) Sample

func (p *ProcStat) Sample() (CPUSample, error)

Sample reads /proc/stat and computes CPU utilization since the last call.

type Synthetic

type Synthetic struct {
	// contains filtered or unexported fields
}

Synthetic is a deterministic CPU monitor for testing.

func NewSynthetic

func NewSynthetic(initial float64) *Synthetic

NewSynthetic creates a synthetic monitor with initial utilization.

func (*Synthetic) Sample

func (s *Synthetic) Sample() (CPUSample, error)

Sample returns the current synthetic utilization.

func (*Synthetic) Set

func (s *Synthetic) Set(util float64)

Set updates the synthetic utilization value.