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11 lines
467 B
Markdown
11 lines
467 B
Markdown
1 year ago
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# Notes from SMT testing
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Using the command 'ppc64_cpu' to alter the kernel's use of SMT on the fly will
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turn off/on SMT for the host, but not any KVM guests.
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Upon turning off SMT, and then back on, virtual machines will (unfortunately)
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be "tagged to" or stuck on the physical cores' IDs (0,4,8,12,etc.).
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At the time of this writing, if one has to disable SMT and re-enable it, a
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reboot will be required to get guest VMs the proper resources they need on the CPUs.
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