RAM used by the flashplayer.

Main.hx

import flash.events.Event;
import flash.display.Sprite;
import flash.system.System;
import flash.text.TextField;
import flash.text.TextFormat;
import flash.Lib;

class Main
{
	/**
	 *	haxe -main Main -swf main.swf
	 */
	public static function main ()
	{
		_sprite = new Sprite();
		_memReadText = new TextField();
		_fpsReadText = new TextField();
		_format = new TextFormat("default", 16, 0xFF00FF);
		
		Lib.current.addEventListener(Event.ADDED_TO_STAGE, onStage);
	}
	
	public static function onStage (e:Event = null)
	{	
		Lib.current.removeEventListener(Event.ADDED_TO_STAGE, onStage);
		Lib.current.addEventListener(Event.ENTER_FRAME, onEnterFrame);
		
		Lib.current.stage.addChild(_sprite);
		
		_sprite.addChild(_memReadText);		
		_memReadText.defaultTextFormat = _format;
		_memReadText.width = 200;
		_memReadText.height = 20;
		_memReadText.x = 2;
		_memReadText.y = 2;
		
		_sprite.addChild(_fpsReadText);		
		_fpsReadText.defaultTextFormat = _format;
		_fpsReadText.width = 200;
		_fpsReadText.height = 20;
		_fpsReadText.x = 2;
		_fpsReadText.y = 30;
	}
	
	public static function onEnterFrame (e:Event = null)
	{	
		var t = Lib.getTimer();
		_frameListSum += (_frameList[_frameList.length] = Std.int(t - _frameLast));
		if (_frameList.length > 10) _frameListSum -= _frameList.shift();
		_frameLast = t;
		
		_memReadText.text = "Mem: " + (System.totalMemory / 1024 / 1024) + "MB";
		_fpsReadText.text = "FPS: " + Std.int(1000 / (_frameListSum / _frameList.length));
	}
	
	static var _fpsReadText : TextField;
	static var _memReadText : TextField;
	static var _sprite : Sprite;
	static var _format : TextFormat;
	static var _frameLast:Float;
	static var _frameListSum:Int;
	static var _frameList:Array<Int> = [];
}