irqs

Documentation

Index

• Constants
• type Counter
  • func (C Counter) Clone() Counter
  • func (C Counter) Delta(X Counter) Counter
• type Handler
  • func New(logger *log.Logger, procfsRoot string) *Handler
  • func (handler *Handler) ReadInfo(flags uint) ([]Info, error)
  • func (handler *Handler) ReadStats() (Stats, error)
• type Info
• type Reporter
  • func NewReporter(sink io.Writer, jsonOutput bool, verbose int, cpus cpuset.CPUSet) Reporter
• type Stats
  • func (S Stats) Clone() Stats
  • func (S Stats) Delta(X Stats) Stats

Constants

const (
	EffectiveAffinity = 1 << iota
)

Types

type Counter

type Counter map[string]uint64

the IRQ name is not always a number, can be like "NMI", "TLB"...

func (Counter) Clone

func (C Counter) Clone() Counter

func (Counter) Delta

func (C Counter) Delta(X Counter) Counter

assume x is fresher than x. IRQ (all stems by how the kernel does the accounting): if a irq is counted in both c and x, then val(x) >= val(x) x is always a superset of c

type Handler

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

func New

func New(logger *log.Logger, procfsRoot string) *Handler

func (*Handler) ReadInfo

func (handler *Handler) ReadInfo(flags uint) ([]Info, error)

func (*Handler) ReadStats

func (handler *Handler) ReadStats() (Stats, error)

type Info

type Info struct {
	Source string
	IRQ    int
	CPUs   cpuset.CPUSet
}

type Reporter

type Reporter interface {
	Delta(ts time.Time, prevStats, lastStats Stats)
	Summary(initTs time.Time, prevStats, lastStats Stats)
}

func NewReporter

func NewReporter(sink io.Writer, jsonOutput bool, verbose int, cpus cpuset.CPUSet) Reporter

type Stats

type Stats map[int]Counter

CPUid -> counter

func (Stats) Clone

func (S Stats) Clone() Stats

func (Stats) Delta

func (S Stats) Delta(X Stats) Stats