Commit c900e33e authored by Artem Bityutskiy's avatar Artem Bityutskiy Committed by Rafael J. Wysocki
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Documentation: PM: Document intel_idle.table command line option 



Add the 'intel_idle.table' command line option description to the
intel_idle document in admin-guide.

Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
[ rjw: Subject adjustment, changelog edits]
Link: https://patch.msgid.link/20260205125354.632891-1-artem.bityutskiy@linux.intel.com


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 9b1b3dcd

Documentation/admin-guide/pm/intel_idle.rst

+11 −0
Original line number Diff line number Diff line
@@ -260,6 +260,17 @@ mode to off when the CPU is in any one of the available idle states. This may 
help performance of a sibling CPU at the expense of a slightly higher wakeup

latency for the idle CPU.



The ``table`` argument allows customization of idle state latency and target

residency. The syntax is a comma-separated list of ``name:latency:residency``

entries, where ``name`` is the idle state name, ``latency`` is the exit latency

in microseconds, and ``residency`` is the target residency in microseconds. It

is not necessary to specify all idle states; only those to be customized. For

example, ``C1:1:3,C6:50:100`` sets the exit latency and target residency for

C1 and C6 to 1/3 and 50/100 microseconds, respectively. Remaining idle states

keep their default values. The driver verifies that deeper idle states have

higher latency and target residency than shallower ones. Also, target

residency cannot be smaller than exit latency. If any of these conditions is

not met, the driver ignores the entire ``table`` parameter.



.. _intel-idle-core-and-package-idle-states: