var NodePerfWorkloads = []NodePerfWorkload{npbISWorkload{}, npbEPWorkload{}, tfWideDeepWorkload{}}

type NodePerfWorkload interface {
	// Name of the workload.
	Name() string
	// PodSpec used to run this workload.
	PodSpec() v1.PodSpec
	// Timeout provides the expected time to completion
	// for this workload.
	Timeout() time.Duration
	// KubeletConfig specifies the Kubelet configuration
	// required for this workload.
	KubeletConfig(old *kubeletconfig.KubeletConfiguration) (new *kubeletconfig.KubeletConfiguration, err error)
	// PreTestExec is used for defining logic that needs
	// to be run before restarting the Kubelet with the new Kubelet
	// configuration required for the workload.
	PreTestExec() error
	// PostTestExec is used for defining logic that needs
	// to be run after the workload has completed.
	PostTestExec() error
	// ExtractPerformanceFromLogs is used get the performance of the workload
	// from pod logs. Currently, we support only performance reported in
	// time.Duration format.
	ExtractPerformanceFromLogs(logs string) (perf time.Duration, err error)
}