hyperthreading....

[Bryan O'Neal]

Short answer is that it is a way each physical core gets presented to the
OS as two logically cores. Through some well documented voodoo it increases
paralization for some work loads. Available on many Pentium systems since
the Pentium 4 but also requires comparable chipsets so some early systems
had processors that supported it but still could not use it. Mostly I see
it on Xoen systems
Some bios allow you to disable it.
On May 4, 2014 9:35 PM, "Michael Havens" <bmike1 at gmail.com> wrote:

> what is it and is it an option in a modern BIOS?
> I ask because I got an interesting message on another list othat I
> participate in.
> [quote]Even though an AGP card may not support vdpau acceleration, a p4
> should be able to use the Nvidia driver to get some openGL 2D accelerated
> output for XBMC. You should also have hyperthreading turned on in the BIOS,
> so the system will see two CPU cores, as XMBC will take advantage of that
> for maybe a 20% performance boost. My netbook, with a slow 1.2 GHz
> hyperthreaded Intel Atom CPU and 945M graphics, is still able to play back
> 720p h.264 encoded movies smoothly on MX 14.
>
> Steve (finishing up the packaging of XBMC 13.0, which coincidently was
> just released)[/quote]
> :-)~MIKE~(-:
>
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