DreaMana

package {
  import flash.display.Sprite;
  import flash.events.Event;
  import flash.utils.getTimer;
  import flash.system.System;
  
  public class SpeedTest extends Sprite {
    
    public function SpeedTest() {
      run();
    }
    
    public function run():void {
      //Store 2 min. Sound Samples(44100)
      var t:int;
      var i:uint;
      var len:uint;
      var mem:int = System.totalMemory;
      
      trace("1. without new Number()");
      len = 120 * 44100 * 2;
      t = getTimer();
      var v1:Vector.<Number> = new Vector.<Number>(len, true);
      trace(getTimer()-t + "ms");
      trace("v[0] = "+ v1[0]);
      trace("memory used: " + (System.totalMemory - mem) + "K");
      mem = System.totalMemory;
      
      
      trace("\n2. without new SampleUnit()");
      len = 120 * 44100;
      t = getTimer();
      var v2:Vector.<SampleUnit> = new Vector.<SampleUnit>(len, true);
      trace(getTimer()-t + "ms");
      trace("v[0] = "+ v2[0]);
      trace("memory used: " + (System.totalMemory - mem) + "K");
      mem = System.totalMemory;
      
      
      trace("\n3. new Number()");
      len = 120 * 44100 * 2;
      t = getTimer();
      var v3:Vector.<Number> = new Vector.<Number>(len, true);
      for(i=0; i<len; i++) {
        v3[i] = new Number();
      }
      trace(getTimer()-t + "ms");
      trace("v[0] = "+ v3[0]);
      trace("memory used: " + (System.totalMemory - mem) + "K");
      mem = System.totalMemory;
      
      
      trace("\n4. new SampleUnit()");
      len = 120 * 44100;
      t = getTimer();
      var v4:Vector.<SampleUnit> = new Vector.<SampleUnit>(len, true);
      for(i=0; i<len; i++) {
        v4[i] = new SampleUnit();
      }
      trace(getTimer()-t + "ms");
      trace("v[0] = "+ v4[0]);
      trace("memory used: " + (System.totalMemory - mem) + "K");
      mem = System.totalMemory;
    }
  }
}

package {
  public class SampleUnit {
    private var left:Number=0;
    private var right:Number=0;
    
    public function SampleUnit() {}
  }
}