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Is there a way to disable CPU C-state on Solaris 11.4 x86?

in Oracle Solaris System Administration (MOSC) 2 commentsAnswered

I am looking for a way to disable CPU C-states through the Solaris 11 OS configuration, not through the BIOS CPU C-state settings.

Referring to Doc ID 1368608.1 SR, I set the following in

/etc/system
set idle_cpu_prefer_mwait=0
set idle_cpu_no_deep_c=1

However, the CPU C-state remains enabled.

Additionally, disabling ACPI prevents Oracle Solaris 11 from booting properly:

eeprom acpi-user-options=0x2

Is there any other way to disable CPU C-state?

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