Hyperthreading is enabled in BIOS, but the variable:
machdep.hyperthreading_allowed
is '0' by default in FreeBSD 6.2R :(((
I just changed it now to '1' and all cores in all CPUs started to
work :)))
Very simple change and so much power more :)
Thanks a lot for this hint!!
Regards,
Robert
On Mar 10, 2009, at 3:19 PM, Lucas Holt wrote:
Have you tried the hyperthreading setting?
machdep.hyperthreading_allowed=1
(put that in /etc/sysctl.conf)
On Mar 10, 2009, at 6:40 AM, Robert Heron wrote:
Hi,
I have FreeBSD 6.2R running on Intel SE7501HG2 motherboard with two
Xeon installed.
System detects 2 CPUs with 2 cores in each of them (total 4 cores)
but it uses only one core in each Xeon (total 2 of 4 cores are used
only).
I see it in the 'top'. I tried the same hardware on FreeBSD 7.1R
and this OS uses all of the detected cores.
What should I do FreeBSD 6.2R to use all of the available cores?
I cannot upgrade it to 7.x, must use 6.x
Regards,
Robert Heron
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Lucas Holt
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