doc's inaccuracy? about machdep.hlt_logical_cpus
Andriy Tkachuk
ant at emict.com
Thu Dec 16 03:11:27 PST 2004
Hi folks.
ant# uname -r
5.3-STABLE
man smp
...
FreeBSD supports hyperthreading on Intel CPU's on the i386 platform.
Since using logical CPUs can cause performance penalties under certain
loads, the logical CPUs can be disabled by setting the
machdep.hlt_logical_cpus sysctl to one.
^^^^^^^^^^^^^^^^^^^^^^^^
ant# sysctl -a | grep machdep.hlt
machdep.hlt_cpus: 0
is this the one that is mentioned in smp(4) ?
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