sclass MultiBencherDemo {
  MultiBencher bencher;
  
  new DoubleVar var;
  Runnable action = r {
    double x = 0;
    repeat 1000 { x += random(); }
    var.set(x);
  };
  
  swappable MultiBencher makeBencher() {
    ret new MultiBencher().interval(0.001).seconds(5.0);
  }
  
  run {
    bencher = makeBencher();
    bencher.action(action);
    bencher.run();
    print(+var);
    showText("Bench", bencher.renderMinRecords() + "\n" + str(bencher));
  }
}