recordInterval(since:end:)
Record the time interval (with nanosecond precision) between the passed since
dispatch time and end
dispatch time.
func recordInterval(since: DispatchTime, end: DispatchTime = .now())
Record the time interval (with nanosecond precision) between the passed since
dispatch time and end
dispatch time.
func recordInterval(since: DispatchTime, end: DispatchTime = .now())