Loading speed


The main form of my Vaadin application takes enormous amount of time to load (more than 1 minute).

It’s very simple and the web server is not under load (only a couple of users access this web server).

How can I find out why this performance problem occurs?



A good place to start would be to add
to the end of your URL to bring up the Debug window. That will show you things like

Server visit took 14ms
JSON parsing took 0ms
Processing time was 104ms for 12146 characters of JSON

That should give you a good indication of where the problem lies.