On Apr 2, 2009, at 2:45 PM, Gus Correa wrote:
> Sorry, I don't have an answer about performance.
> You may need to ask somebody else or google around
> about the relative performance of 32-bit vs. 64-bit mode.
It is worth trying 64-bit. The performance is going to depend on the
program. Since 64 bit pointers take more cache space, a program that
uses a lot of pointers will run more slowly. However, the x64
architecture has more registers than the x86 architecture, and that
can make a 64 bit program run faster. Overall, it is probably more
common for program to run faster in 64 bit mode, but your program
could be in the minority.