[Asterisk-Users] Digium G.729 codec modules updated

[Eric Bishop]

On a dual processor Xeon (EM64T) would you reccomend turning hypertreading
on or off? I tend go for it off dual processor machines just in case 2
processes end up on the one physical processor rather than 2 processes on 2
different physical processors. What do you think?

On 10/9/05, Kevin P. Fleming <kpfleming at digium.com> wrote:
>
> Eric Bishop wrote:
> > Have you founy any real life performance benefit of x86_64 (particularly
> > EM64T on Xeon) as apposed to plan old x86?
>
> Yes. On my Athlon-64 2200+ system on my desk, the 'opteron' version
> encodes a 6722 block sample file in 478ms; the 'i686' version does it in
> 514ms. The 'i386' version is somewhere near 600ms, since it has no fancy
> instruction scheduling.
>
> Interestingly, _all_ of the 32-bit x86 optimized versions run just fine
> on that machine, meaning that GCC did not opt to use any instructions
> that are specific to a processor model/family... the performance
> improvements come only from scheduling the instruction flow.
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