}, {
	Units: []Unit{
		{"n*GCU", []string{"nanogcu"}, 1e-9},
		{"u*GCU", []string{"microgcu"}, 1e-6},
		{"m*GCU", []string{"milligcu"}, 1e-3},
		{"GCU", []string{"gcu"}, 1},
		{"k*GCU", []string{"kilogcu"}, 1e3},
		{"M*GCU", []string{"megagcu"}, 1e6},
		{"G*GCU", []string{"gigagcu"}, 1e9},
		{"T*GCU", []string{"teragcu"}, 1e12},
		{"P*GCU", []string{"petagcu"}, 1e15},
	},

	Total   int64         // Total value of the profile.
	Scale   float64       // Multiplier to generate displayed value
	Type    string        // Profile type. E.g., "cpu".
	Unit    string        // One of "B", "s", "GCU", or "" (if unknown)
	Stacks  []Stack       // List of stored stacks
	Sources []StackSource // Mapping from source index to info
}

// Stack holds a single stack instance.
type Stack struct {