Slow servlet

I have a servlet called from an HTML page.

If I run 5 browser windows and hit submit one right after the other, I can see my servlet kick off twice. Once the first one is done, the 3rd one kicks off. When the 2nd is done, the 4th goes and so on.

I'm servlet deficient and have no idea why this is.

Can anyone help?

Apparently your server isn't capable of handling more than 2 servlet requests at once. Check the server settings, there might be something about it.