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| author | Christian Breunig <christian@breunig.cc> | 2024-03-05 20:32:16 +0100 |
|---|---|---|
| committer | Mergify <37929162+mergify[bot]@users.noreply.github.com> | 2024-03-05 19:35:49 +0000 |
| commit | 7943e5513cbe7a0d910c0fba025c7eb70d0fe71e (patch) | |
| tree | 54a9bf06c84b8059cf8c6ed130fc96fb63b92c9d /docs | |
| parent | 3f854e2cb339056c3b652e65b5b041674ac0e18c (diff) | |
| download | vyos-documentation-7943e5513cbe7a0d910c0fba025c7eb70d0fe71e.tar.gz vyos-documentation-7943e5513cbe7a0d910c0fba025c7eb70d0fe71e.zip | |
T2447: add configurable kernel boot option 'disable-power-saving'
Lower available CPU C states to a minimum if this option set. This will set
Kernel commandline options "intel_idle.max_cstate=0 processor.max_cstate=1".
(cherry picked from commit f0324d8a03c0c0cd7ed250b722ca4a2aff55f617)
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/configuration/system/option.rst | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/docs/configuration/system/option.rst b/docs/configuration/system/option.rst index 788765f0..02c889dd 100644 --- a/docs/configuration/system/option.rst +++ b/docs/configuration/system/option.rst @@ -24,7 +24,7 @@ General .. cfgcmd:: set system option root-partition-auto-resize - Enables the root partition auto-extension and resizes to the maximum + Enables the root partition auto-extension and resizes to the maximum available space on system boot. Kernel @@ -35,6 +35,23 @@ Kernel Disable all optional CPU mitigations. This improves system performance, but it may also expose users to several CPU vulnerabilities. + This will add the following option to the Kernel commandline: + + * ``mitigations=off`` + + .. note:: Setting will only become active with the next reboot! + +.. cfgcmd:: set system option kernel disable-power-saving + + Disable CPU power saving mechanisms also known as C states. + + This will add the following two options to the Kernel commandline: + + * ``intel_idle.max_cstate=0`` Disable intel_idle and fall back on acpi_idle + * ``processor.max_cstate=1`` Limit processor to maximum C-state 1 + + .. note:: Setting will only become active with the next reboot! + *********** HTTP client *********** |