Originally Posted by jjana123
Yes I meant "a 32-bit application under 64 bit linux".
What is the reason you say so? May be for heavy allication with lot of memory operation it make sense to make 64-bit application.
Well, you didn't say what you were running, or what your desired result was. I was generalizing, but if your app can take advantage of the 64 bit address space (and the libraries, OS, and other parts can too), it'll probably run faster than a 32 bit app in a 64 bit space.
Unless you're seriously crunching things, though, I doubt you'd see a huge speed difference.