Double Buffering Slow..is it in the code? or..

Question

Hi all..
i make small application which use double buffering..
here's the code:
public void update(Graphics g){
        tys_a=System.currentTimeMillis();
        Dimension d = getSize();       
        if (offscreenImage == null || offscreenImage.getWidth(null) < d.width || offscreenImage.getHeight(null) < d.height){
            if (offscreenImage != null) offscreenImage.flush();
            offscreenImage = createImage(d.width, d.height);
            offscreenSize = d;
            offscreenGraphics = offscreenImage.getGraphics();
        offscreenGraphics.clearRect(0, 0, d.width, d.height);
        paint(offscreenGraphics);
        g.drawImage(offscreenImage, 0, 0, null);
        g.dispose();
        tys_b=System.currentTimeMillis();
        tys_c=tys_b-tys_a;
        System.out.println("DRAW OFFSCREEN GRAPH " + tys_c + " --- " + tys_a + " ---- " + tys_b);
    }then i run it on my desktop PC, which specs are
Core 2 duo E4500 - 2.20Ghz, 2 Gb RAM , Vista Home Premium
its works fine..took 10 ms
but when i try on Sony vaio laptop, which specs are:
core 2 duo T8100 - 2.1Gghz, 2Gb RAM, Vista home premium
its so slow..took average about 800-900ms (80-90 times slower)
did i do something wrong with my code...i've been searching all day...but seems no answer
but all i can think..is not about the code..because it works fine in my desktop...
but i dunno what cause this problem?
any body can help?or ever have this kind of problem willing to share?
Thx,

Answer 1

AndrewThompson64 wrote:
>
Hi,
dunnoIs this a English word???>Is this an English word? No it is not, it is strine* for "I do not know". I understand the Americans also know of this strine abbreviation, but I cannot understand how, since their comprehension of strine is quite low.
* local pronunciation of 'Australian'.
But to the OP. It is a far better idea to phrase your replies in standard English, since many people who understand English do not understand (or will not tolerate) local abbreviations and slang.In the South West of England It can be translated as "I don't know and I don't care" often accompanied by a shrug of the shoulders.