by Craig Shearer >> Thu, 7 Oct 1999 20:30:03 GMT
Something very interesting I've discovered about JADE Web-enabled applications.
Label controls are very expensive to use. You would naturally assume that a Label control would be pretty lightweight, and naturally use them on your web-deployed forms. Unfortunately this is not the case!
The reason is that Label controls are very inefficient to generate HTML for. I suspect that it's because JADE has to check whether there is an event method behind each label control to determine whether to generate simple HTML or a link.
Here's some interesting figures:
A form with a single button takes 10ms to generate. Add a single label and it takes 70ms. A form with 10 labels takes 830ms. A form with 40 labels takes 2.6 seconds!!!
A WebHTML control instead which gives you static text as a Label control does, or gives you the option of writing some HTML yourself. What it doesn't give you is the ability to change the font, however, it would be pretty simple to subclass the control and give it this ability.
For comparison, replace the labels with the WebHTML control and the same form that took 2.6 seconds to generate now generates in 80ms!!!
Interesting huh?
Note: the test machine was a Pentium II, 333MHz with 128MB RAM.
Craig.