On Fri, Jan 09, 2009 at 01:30:02PM -0600, Ron Johnson wrote: > The only benefit which x86-64 has in 64-bit mode is extra registers. But > that only benefits computationally-intensive programs.
Those actually help just about anywwhere. As long as your compiler knows how to use them. And it does. Not using registers: reading from memory, and this is slower. OTOH, using larger pointer wastes more memory, and hence a larger chance of cache misses. Which is why this benefit is not automatic. -- Tzafrir Cohen | [email protected] | VIM is http://tzafrir.org.il | | a Mutt's [email protected] | | best ICQ# 16849754 | | friend -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
