There's no reason to suspect that math with 8-bit values would be slower than 64-bit values. Both are "native" to the processor. Also, unless you have a lot of them packed into an array, there's no reason to believe it would use noticeably less memory. Before you optimize your program by worrying about such details, you may need to better explain your problem space.
On Sun, Mar 30, 2014 at 2:27 AM, Freddy Chua <[email protected]> wrote: > Hi, > > I have a question. Suppose the data I have are only small integer values in > the range of 1-10. Should I use Int64 or Int8. Using Int64 would be > consistent with my system word size and would likely be faster. But using > Int8 would definitely save more memory. > > So, which should I use?
