[mythtv-users] 32 or 64 Bit

[John Drescher]

On Thu, Mar 4, 2010 at 7:41 AM, Corne Beerse <cbeerse at gmail.com> wrote:
> On 26-2-2010 17:43, Donald J. Organ IV wrote:
>
> What is everyones opinion I am going to start building my new FE/BE system
> next week, and I noticed that the mythbuntu distro comes in 32 and 64 bit
> arch.  What would everyone recommend?
>
> General guidelines (roughly in order):
> If software (or hardware drivers) require 32 or 64 bits, use that.
> Up to 2 GB memory: 32 bits
> Processes over 2 GB memory usage: 64 bits.
> msWindows up to 4 GB memory: 32 bits
> Linux from 3 GB upwards: 64 bits
> msWindows from 4 GB upwards: 64 bits
>
> The above is general. I donnot see myth to be any different. Only if you use
> huge amounths of video processing (transcoding and such), you can use the
> memory and addressing of 4 GB and 64 bits.
>

There are still advantages to using 64 bits on a 1GB machine. 64 bits
gives you more registers (actually > 2 times as many), more SIMD
functionality... that you generally do not get when you run the same
chip in 686 mode.

John