Kernel forces machdep.hlt_cpus, how to change?
cperciva at freebsd.org
Thu Jan 5 09:49:07 PST 2006
Walter Hop wrote:
> I'm testing out FreeBSD 6.0R on a Dual Xeon. I want to do some
> benchmarking of hyperthreading before I put this machine into use, so
> I am trying to turn off the HLTing of logical cpu's.
Read FreeBSD-SA-05:09.htt :
and then, if you don't have any local untrusted users, consider setting
machdep.hyperthreading_allowed=1 in /boot/loader.conf.
More information about the freebsd-questions