type CpuLoadReader interface {
	// Start the reader.
	Start() error

	// Stop the reader and clean up internal state.
	Stop()

	// Retrieve Cpu load for a given group.
	// name is the full hierarchical name of the container.
	// Path is an absolute filesystem path for a container under CPU cgroup hierarchy.
	GetCpuLoad(name string, path string) (info.LoadStats, error)
}