diskstat

Documentation

Overview

Package diskstat implements metrics collection related to disk IO usage

Index

• type ByUsage
  • func (a ByUsage) Len() int
  • func (a ByUsage) Less(i, j int) bool
  • func (a ByUsage) Swap(i, j int)
• type DiskStat
  • func New(m *metrics.MetricContext, Step time.Duration) *DiskStat
  • func (c *DiskStat) ByUsage() []*PerDiskStat
  • func (s *DiskStat) Collect()
  • func (s *DiskStat) RefreshBlkDevList()
• type PerDiskStat
  • func NewPerDiskStat(m *metrics.MetricContext, blkdev string) *PerDiskStat
  • func (s *PerDiskStat) Usage() float64
• type PerDiskStatMetrics

Types

type ByUsage

type ByUsage []*PerDiskStat

Return list of disks sorted by Usage

func (ByUsage) Len

func (a ByUsage) Len() int

func (ByUsage) Less

func (a ByUsage) Less(i, j int) bool

func (ByUsage) Swap

func (a ByUsage) Swap(i, j int)

type DiskStat

type DiskStat struct {
	Disks map[string]*PerDiskStat
	// contains filtered or unexported fields
}

func New

func New(m *metrics.MetricContext, Step time.Duration) *DiskStat

func (*DiskStat) ByUsage

func (c *DiskStat) ByUsage() []*PerDiskStat

ByUsage() returns an slice of *PerDiskStat entries sorted by usage

func (*DiskStat) Collect

func (s *DiskStat) Collect()

func (*DiskStat) RefreshBlkDevList

func (s *DiskStat) RefreshBlkDevList()

type PerDiskStat

type PerDiskStat struct {
	Metrics *PerDiskStatMetrics

	Name string
	// contains filtered or unexported fields
}

func NewPerDiskStat

func NewPerDiskStat(m *metrics.MetricContext, blkdev string) *PerDiskStat

func (*PerDiskStat) Usage

func (s *PerDiskStat) Usage() float64

Usage returns approximate measure of disk usage (time spent doing IO / wall clock time)

type PerDiskStatMetrics

type PerDiskStatMetrics struct {
	ReadCompleted        *metrics.Counter
	ReadMerged           *metrics.Counter
	ReadSectors          *metrics.Counter
	ReadSpentMsecs       *metrics.Counter
	WriteCompleted       *metrics.Counter
	WriteMerged          *metrics.Counter
	WriteSectors         *metrics.Counter
	WriteSpentMsecs      *metrics.Counter
	IOInProgress         *metrics.Gauge
	IOSpentMsecs         *metrics.Counter
	WeightedIOSpentMsecs *metrics.Counter
	SectorSize           *metrics.Gauge
}