Bad Performance CPU? get-cpufreq-para failed
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On a Lenovo SR630 V4 it took
Power/Performance Biasset toOS Controlled, and on an HPE DL380 Gen 11 it was the iLO Power Regulator moved off Dynamic Power Savings toOS Control Mode, with a host reboot.
Both then returned real values fromxenpm get-cpufreq-parainstead of the failure line.
@bleader is right that two vendors is not enough to document, so if your host works, could you post the vendor, the exact setting name, where it lives, and whether you needed a reboot? Dell, Supermicro and anything AMD are the obvious gaps.
I don't know whether the firmware is withholding p-state control outright or just not publishing the ACPI objects Xen looks for, so I would rather collect settings than write up a mechanism I can't back.Thanks!
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P poddingue marked this topic as a question
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