I did a quick search to see if this had already been mentioned in these forums but didn't find anything, so I thought I'd share this for those who haven't seen it.

Head on over to the link below to what looks like a very good free PDF eBook on improving NET performance which should also help you with your XNA development.

http://msdn.microsoft.com/en-us/library/ms998530.aspx

I'm fairly new to .NET and XNA programming but from what I've read so far, this is a great free resource worth downloading and weighs in at a hefty 1103 pages!

As well as the 'Improving Managed Code' section that should appeal to all XNA devs, this useful tome also covers performance topics covering XML, ASP.NET, SQL, Interop, Web Servies, ADO.NET and more, at the very least making it a must-have reference for any .NET coder's desk.

Nice find and thanks for sharing :]

Bjoern Graf:

Nice find and thanks for sharing :]

I aim to please.

I accidentally stumbled on this and was pleasantly surprised at the huge amount of information in this book. Free eBooks are, more often than not, fairly skimpy affairs. I'm thankful I don't have to print this sucker out. All I need now is a Kindle DX eBook reader and my life would be complete :)

I've yet to delve into it deeply but from initial views this seems to be turning into a 'Code Complete' (Google it or check Amazon) for .NET programmers ;)

Maybe those of you with plenty of experience in .NET and XNA could post here and highlight some of the many chapters of the book that less experienced XNA programmers should bookmark for reference?