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 <[EMAIL PROTECTED] > 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.
_______________________________________________
--Bandwidth and Colocation sponsored by Easynews.com --

Asterisk-Users mailing list
[email protected]
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users

_______________________________________________
--Bandwidth and Colocation sponsored by Easynews.com --

Asterisk-Users mailing list
[email protected]
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-users

Reply via email to