I'm building a web application on .Net and it will run on 64 bit server. Is there something special that I should do to take full advantage of 64 bits?
Only thing that comes to mind is that RAM is cheap and "unlimited" for 64bit, maybe I should cache as much as possible.
Edit: closing as duplicate of http://stackoverflow.com/questions/291675/what-can-i-do-to-optimize-my-net-web-sites-and-applications-for-64-bit
There's some good information here.
After a quick read, it looks like the ability to address unlimited (essentially) memory makes applications behave better. As long as the OS and the .NET CLR are the 64-bit versions, you automagically get the benefit.
I would caution that this is not a fix-all for poorly written apps, nor does it mean that you now have a bottomless pit in which to stuff cache items. Keep your profiler handy and continue to write good code on a powerful platform.