29 Aug
2014
29 Aug
'14
5:38 p.m.
On Fri, 29 Aug 2014, dale wrote:
Although that still begs the question of whether it
being turned off in
BIOS/UFEI before or after installation actually makes any difference...
(hyperthreading) can be turned off after boot by telling the kernel not to
use either odd or even numbered Cores. I do not think doing it in the bios
is better or more effective as the idea is to make sure one thread does
not interfere with another. The only difference I could see is that it may
be that the bios switch may remove power from the secondary thread parts
of the chip for cooler running, but I do not know.
It should be possible to turn off the use of cores on the fly so that one
could have a low latency record session with less performance and a higher
latency mixdown with more performance (or video processing/editing).
I am just thinking that the P4 I gave to my son still has HT turned off, I
should turn it back on.
--
Len Ovens
www.ovenwerks.net