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| -rw-r--r-- | docs/configuration/system/option.rst | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/docs/configuration/system/option.rst b/docs/configuration/system/option.rst index 02c889dd..eedb6247 100644 --- a/docs/configuration/system/option.rst +++ b/docs/configuration/system/option.rst @@ -52,6 +52,36 @@ Kernel .. note:: Setting will only become active with the next reboot! +<<<<<<< HEAD +======= +.. cfgcmd:: set system option kernel amd-pstate-driver <mode> + + Enables and configures p-state driver for modern AMD Ryzen and Epyc CPUs. + + The available modes are: + + * ``active`` This is the low-level firmware control mode based on the profile + set and the system governor has no effect. + * ``passive`` The driver allows the system governor to manage CPU frequency + while providing available performance states. + * ``guided`` The driver allows to set desired performance levels and the firmware + selects a performance level in this range and fitting to the current workload. + + This will add the following two options to the Kernel commandline: + + * ``initcall_blacklist=acpi_cpufreq_init`` Disable default ACPI CPU frequency scale + * ``amd_pstate={mode}`` Sets the p-state mode + + .. note:: Setting will only become active with the next reboot! + + .. seealso:: https://docs.kernel.org/admin-guide/pm/amd-pstate.html + +.. cfgcmd:: set system option kernel quiet + + Suppress most kernel messages during boot. This is useful for systems with + embedded serial console interfaces to speed up the boot process. + +>>>>>>> fd6b53a (T7397: add "system kernel option quiet" to suppress boot messages) *********** HTTP client *********** |