I am setting up a Redhat Enterprise 6 web server and have the option to use either 32-bit or 64-bit. The server will have a Xeon 2620 processor and 16 GB of Ram. I don't foresee any individual process to use more than 4GB of ram, with 99% of them using less than 50MB.
A few years ago I played with a 64-bit version of Centos, I found it more difficult to compile programs as 64-bit applications due to various library issues.
Are there any major advantages that I am overlooking that would lead me to choose the 64-bit version of Redhat? Or would I be fine with 32 bit? Any performance benefits for either one?