cpuload

Documentation

Index

• Variables
• type Connection
  • func (self *Connection) Close() error
  • func (self *Connection) Read(b []byte) (n int, err error)
  • func (self *Connection) ReadMessage() (msg syscall.NetlinkMessage, err error)
  • func (self *Connection) Write(b []byte) (n int, err error)
  • func (self *Connection) WriteMessage(msg syscall.NetlinkMessage) error
• type CpuLoadReader
  • func New() (*CpuLoadReader, error)
  • func (self *CpuLoadReader) Close()
  • func (self *CpuLoadReader) GetCpuLoad(path string) (LoadStats, error)
• type LoadStats
• type TaskStats

Variables

var (
	// TODO(rjnagal): Verify and fix for other architectures.
	Endian = binary.LittleEndian
)

Types

type Connection

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

func (*Connection) Close

func (self *Connection) Close() error

func (*Connection) Read

func (self *Connection) Read(b []byte) (n int, err error)

func (*Connection) ReadMessage

func (self *Connection) ReadMessage() (msg syscall.NetlinkMessage, err error)

func (*Connection) Write

func (self *Connection) Write(b []byte) (n int, err error)

func (*Connection) WriteMessage

func (self *Connection) WriteMessage(msg syscall.NetlinkMessage) error

type CpuLoadReader

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

func New

func New() (*CpuLoadReader, error)

func (*CpuLoadReader) Close

func (self *CpuLoadReader) Close()

func (*CpuLoadReader) GetCpuLoad

func (self *CpuLoadReader) GetCpuLoad(path string) (LoadStats, error)

Returns instantaneous number of running tasks in a group. Caller can use historical data to calculate cpu load. path is an absolute filesystem path for a container under the CPU cgroup hierarchy. NOTE: non-hierarchical load is returned. It does not include load for subcontainers.

type LoadStats

type LoadStats struct {
	// Number of sleeping tasks.
	NrSleeping uint64 `json:"nr_sleeping"`

	// Number of running tasks.
	NrRunning uint64 `json:"nr_running"`

	// Number of tasks in stopped state
	NrStopped uint64 `json:"nr_stopped"`

	// Number of tasks in uninterruptible state
	NrUinterruptible uint64 `json:"nr_uninterruptible"`

	// Number of tasks waiting on IO
	NrIoWait uint64 `json:"nr_io_wait"`
}

This mirrors kernel internal structure.

type TaskStats

type TaskStats C.struct_taskstats