[mythtv-users] i386 vs x86_64 Fedora

[Blammo]

On Thu, May 15, 2008 at 1:43 PM, Miroslav Suchý <miroslav at suchy.cz> wrote:
> dcw napsal(a):
>> I am in the process of getting the components for a new computer for Mythtv.
>> On a x86_64 computer is there an significant advantage of using a x86_64
>> version of Fedora over a i386 version of Fedora?
>
> Memory:
> i386 - can use up to 3.5GB (more with some tricks which limit speed)
> x86_64 - can use "unlimited" memory
> *** Probably not affect on MythTV deployment

Well written overall, one small correction:

At various jobs, I've had many Opteron based servers running
RHEL4/5-i386 with more than 4 gigs of RAM, and have had all of it
usable by the operatiing system. The windows operating system is the
only one _REALLY_ borked when it comes to handling more than 4gigs of
ram.

Regarding mythtv specific, I've seen an almost 100% increase in speed,
same hardware, moving from i386 to x86_64 for commercial flagging, and
at least 25% speed increase during transcoding. That alone makes it
worth it, if you have the hardware already..