Java缓冲区策略导致严重滞后

Question

我有一个小引擎，在我的OSX笔记本电脑上运行得很好，但在功能不太强大的Linux PC上运行时会崩溃或严重滞后。我将代码最小化，使其仅为一个小类，但存在完全相同的滞后性。我认为这与缓冲策略和线程有关。下面是课程：

public class Test extends Canvas implements Runnable {

    private Thread thread;
    private boolean running = false;

    public Test()
    {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(new Dimension(1000, 1000));
        frame.add(this);
        frame.setVisible(true);
        start();
    }

    public static void main(String[] args)
    {
        new Test();
    }

    public synchronized void start()
    {
        this.thread = new Thread(this);
        this.thread.start();
        this.running = true;
    }

    public synchronized void stop()
    {
        try
        {
           this.thread.join();
           this.running = false;
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }

    public void run()
    {
        while(running)
        {
            render();
        }
    }

    private void render()
    {
        BufferStrategy bs = this.getBufferStrategy();
        if(bs == null)
        {
            this.createBufferStrategy(2);
            return;
        }

        Graphics g = bs.getDrawGraphics();
        g.setColor(Color.black);
        g.fillRect(0, 0, 1000, 1000);
        g.dispose();
        bs.show();
    }
}