   }
 }
 #else
-class Timer {
+final class Timer {
   typealias TimeT = UInt64
   var info = mach_timebase_info_data_t(numer: 0, denom: 0)
   init() {

#endif

#if os(Linux)
class Timer {
  typealias TimeT = timespec
  func getTime() -> TimeT {
    var ticks = timespec(tv_sec: 0, tv_nsec: 0)

}
#endif

final class SampleRunner {
  let timer = Timer()
  let baseline = SampleRunner.getResourceUtilization()
  let c: TestConfig
