Am 12.12.2013 11:30, schrieb Jiri Kosina:
On Sat, 7 Dec 2013, Stefan Seyfried wrote:
64bit is never faster.
Where did you get this information from, please?
yes, that was a bit bold :-) Let's rephrase "64 bit is not necessarily faster".
The code generated for x86_64 can be much faster in data operations, because compiler can make use of wider range of CPU registers, and register access is obviously faster than accessing memory.
And cache is faster than memory, too, so 64 bit code with its higher memory footprint might be slower :-) -- Stefan Seyfried "If your lighter runs out of fluid or flint and stops making fire, and you can't be bothered to figure out about lighter fluid or flint, that is not Zippo's fault." -- bkw -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org