!7

sclass Profiler extends DynBigNumber {
  transient new PerSecondCounter counter;
  transient int interval = 100;
  
  void start {
    setDescription("Java CPU");
    ownTimer(doEvery(interval, r sample));
  }
  
  void sample {
    counter.inc(l(runnableThreadsWithStackTraces()));
    setValue(formatDouble(counter.get()*interval/1000*100, 2) + " %");
  }
}