I have a developed a web app. I’ve tested on both a windows 2003 (IIS6) and Windows 2008 R2 (IIS7) server. (The 2008 server is physically more powerful)
The code connects to a database server (different servers
On the 2008 R8 it works fine, but when it used on the 2003 server the w3wp.exe CPU usage shoots up 95% and memory usage creeps up to 800mb. It stays at these levels for a least a couple of hours.
I don’t whether this is a problem with the code in general and 2008 is just better at handling it. Or whether it’s just IIS6 causing the problems?
Any suggestions or logs that I could at to get a clue, before I put too much effort into redesigning the app.