type FSBenchmark struct {
	// Image is the Docker image to load.
	Image string
	// WorkDir is where the action takes place.
	// The commands below are run from a directory that has the same file as what the container image
	// has at this directory.
	WorkDir string
	// RunCmd is the command to run to execute the benchmark.
	RunCmd []string
	// WantOutput, if set, is verified to be a substring of the output of RunCmd.
	WantOutput string
	// CleanCmd, if set, is run to clean up between benchmarks.
	CleanCmd []string
	// Variants is a list of benchmark variants to run.
	// If unset, the typical set is used.
	Variants []Variant
	// Callback is an optional function that is called after each execution of
	// the workload being benchmarked. It can be used to perform workload
	// specific metric reporting.
	Callback func(b *testing.B, output string)
}

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