[mythtv-users] Gentoo 64bit and MythTV completely compatible?
beww at beww.org
Sat Jan 27 20:01:11 UTC 2007
On Jan 27, 2007, at 12:14 PM, Rod Smith wrote:
> Have such inefficiencies in the 64-bit implementations of these
> tools been
> eliminated in the intervening time? I'm currently running a 32-bit
> installation on my 64-bit-capable Celeron D system, but if there
> won't be any
> speed hit to running a 64-bit OS, I'll consider using one when it
> comes time
> to do software upgrades. Although the speed benefits are small
> (about 5-20%
> for most programs), x86_64 code can be a little faster than x86
> code on the
> same CPU, all other things being equal.
I think that, at least a couple of months ago, the consensus was that
there is nothing to be gained on a Myth system by running in 64-bit
You have mentioned some of the reasons, code well optimized for 32-
bit, compilers not well optimized for 64-bit etc.
It certainly couldn't hurt to try though, but I wouldn't expect any
great performance gains and, as you said, some applications might
even run slower.
If you could do actual real-world comparisons we'd all appreciate it
It's hard for me to believe that I still run into some of the same 64-
bit issues that I ran into on a DEC Alpha system a dozen years ago,
it's not like 64-bit is new.
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