diskstats

Documentation

Overview

Package diskstats handles processing of IO statistics of each block device: /proc/diskstats.

Index

• func Get() (stat *structs.DiskStats, err error)
• func NewTicker(d time.Duration) (joe.Tocker, error)
• type Profiler
  • func NewProfiler() (prof *Profiler, err error)
  • func (prof *Profiler) Get() (stats *structs.DiskStats, err error)
  • func (prof *Profiler) Reset() error
• type Ticker
  • func (t *Ticker) Close()
  • func (t *Ticker) Run()

Functions

func Get

func Get() (stat *structs.DiskStats, err error)

Get returns the current IO statistics of the block devices using the package's global Profiler.

func NewTicker

func NewTicker(d time.Duration) (joe.Tocker, error)

NewTicker returns a new Ticker containing a Data channel that delivers the data at intervals and an error channel that delivers any errors encountered. Stop the ticker to signal the ticker to stop running. Stopping the ticker does not close the Data channel; call Close to close both the ticker and the data channel.

Types

type Profiler

type Profiler struct {
	joe.Procer
	*joe.Buffer
}

Profiler is used to process the /proc/diskstats file.

func NewProfiler

func NewProfiler() (prof *Profiler, err error)

Returns an initialized Profiler; ready to use.

func (*Profiler) Get

func (prof *Profiler) Get() (stats *structs.DiskStats, err error)

Get returns information about current IO statistics of the block devices.

func (*Profiler) Reset

func (prof *Profiler) Reset() error

Reset resources: after reset, the profiler is ready to be used again.

type Ticker

type Ticker struct {
	*joe.Ticker
	Data chan *structs.DiskStats
	*Profiler
}

Ticker delivers the system's IO statistics of the block devices at intervals.

func (*Ticker) Close

func (t *Ticker) Close()

Close closes the ticker resources.

func (*Ticker) Run

func (t *Ticker) Run()

Run runs the ticker.