[CentOS] Silly question x64 vs i386

m.roth at 5-cent.us m.roth at 5-cent.us
Wed Dec 16 20:15:16 UTC 2009


> I have a really silly question... but just want to ask...
>
> I have one box on my home network that is x86_64 capable...  My other
> boxes are all i386.  As this x86_64 machine can, at most, house 4 GB of
> RAM (currently only has 1 GB) - is there any advantage to my running
> x86_64 on that machine instead of i386...  Long story as to why I am
> asking - but before I go off and moveit down to i386 - just wanted some
> opinions :)

Short answer: yes.

Longer answer: every single move, down at the machine/assembly level, can
move twice as many bits as on a 32-bit system. That will show up as a very
serious speed increase in your software.

      mark "why you should *always* have an assembler course"



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