4.8 hyperthreading changes
David Malone
dwmalone at maths.tcd.ie
Sat Mar 29 01:42:18 PST 2003
On Sat, Mar 29, 2003 at 01:05:39PM +1100, Aristedes Maniatis wrote:
> makes it seem like this is a new 4.8 feature. Should I be concerned
> about upgrading when 4.8 is released in order to obtain the benefits of
> better use of these CPUs?
The BIOS in the machine in question must be setting up the logical
CPUs so that they look like physical CPUS - in this case FreeBSD
treats them exactly like physical CPUs. The hypertreading support
in 4.8 can enable logical CPUs even if the BIOS has not set them
up.
David.
More information about the freebsd-stable
mailing list