title: draw image or draw filled circle?
body: <p>We have an old Java Swing application. we need to display thousands, hundreds of thousands small circle spots on the canvas based on the real data. Right now we have an image file of a small circle spot. When we need it, we draw that image onto the canvas, thousands, hundreds of thousands times.</p>
  
  <p>Now I am think it may be better (better performance and memory usage) to just draw a filled circle each time instead of load the image and draw it.</p>
  
  <p>how about your opinion?</p>
  
  <p>thanks,</p>