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Does anyone know the best way to disable hyperthreading on Linux?
by bcaa7f3a8bbc 8y ago
Does anyone know the best way to disable hyperthreading on Linux?
- bcaa7f3a8bbc 8y agoOkay, I found it. A SMT knob was added alongside in the L1TF fixes. /sys/devices/system/cpu/smt /sys/devices/system/cpu/smt/active /sys/devices/system/cpu/smt/control active: Tells whether SMT is active (enabled and siblings online) control: Read/write interface to control SMT. Possible values: "on" SMT is enabled "off" SMT is disabled "forceoff" SMT is force disabled. Cannot be changed. "notsupported" SMT is not supported by the CPU If control status is "forceoff" or "notsupported" writes are rejected.
- scns 8y agoIn the bios?