Methods to reduce the CPU Usage for painting the image

Question

Hi,
I have developed an application to view images from an IP camera. By this I can simualtaneously view images from about 25 cameras. The problem is that the CPU Usage increases as the no of player increases. My Player is JPanel. which continuously paints the images from camera. The method 'paintImage' is called from another thread's run method. This thread is responsible for taking jpeg images from IP camera.
Here is the code for this.
public void paintImage(Image image, int fps) {
try {
  int width = this.getWidth();
  addToBuffer(image);
  currentImage = image;
  Graphics graphics = this.getGraphics();
  if (isRunning && graphics != null) {
   graphics.drawImage(image, 0, 0, getWidth(), getHeight(), this);
   if(border ==true){
    graphics.setColor(Color.RED);
                      graphics.drawRect(0,0,getWidth()-1, getHeight()-1);
   graphics.setColor(Color.white);
   graphics.setFont(new Font("verdana", Font.ITALIC, 12));
   graphics.drawString("FPS : " + fps, width-60, 13);
   this.fps = fps;
   if (isRandomRecord) {
    graphics.setColor(new Color(0, 255, 0));
    graphics.fillArc((getWidth() - 10), 5, 10, 10, 0, 360);
} catch (Exception e) {
  e.printStackTrace();
Can someone please help me to solve this problem so that the CPU usage can be reduced.

Answer 1

Can you give me more detail information about how to use
an automated profiling tool You run it and excercise your app. Then it presents stats on number of times each method was called and time spent in each method, plus other stuff. Using those two stats you can zero in on the areas that are most likely to yield resullts.