Java ImageIO.write() takes up to 6 seconds

Question

I am writing an web application where I need to send an image from servlet to client. Image is generated dynamically and is quite big(+-2MB). It might be jpeg, png, or gif.<

Answer 1

Image encoding in java is pretty slow in general but you may also want to ensure you have the native libraries installed as they make quite a noticeable difference in performance.

http://download.java.net/media/jai-imageio/builds/release/1.1/INSTALL-jai_imageio.html