Ivan Voras wrote:
Kris Kennaway wrote:
Check dmesg for the APIC numbers corresponding to the CPUs you want to
disable and add the corresponding entries to /boot/loader.conf, e.g.:
hint.lapic.1.disable="1"
hint.lapic.3.disable="1"
hint.lapic.5.disable="1"
hint.lapic.7.disable="1"
Hi,
Do you know how his method compares to setting machdep.hlt_cpus ?
That is not supported with ULE (and will lead to deadlocks), but I don't
know off-hand if hyperthreading virtual CPUs have their own apic...ok,
it does on one of my systems at least, so that is probably the way to go
when possible.
Kris
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