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Documentation: admin-guide: cpufreq: fix sampling_rate example command

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The example shell command for setting ondemand's sampling_rate wraps an
arithmetic expansion $((...)) in command-substitution backticks. The
arithmetic result is then executed as a command, which fails and writes
an empty value. Drop the surrounding backticks so the computed value is
passed to echo as intended.

Fixes: e54ac58667 ("cpufreq: editing corrections to cpufreq.rst")
Signed-off-by: wangxiaodong <wangxiaodong827546786@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
[ rjw: Subject tweak ]
Link: https://patch.msgid.link/20260621022515.10137-1-wangxiaodong827546786@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
wangxiaodong
2026-06-21 10:25:03 +08:00
committed by Rafael J. Wysocki
parent 3ff72cac73
commit dd242ab6a5
1 changed files with 1 additions and 1 deletions
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2
Documentation/admin-guide/pm/cpufreq.rst
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@@ -497,7 +497,7 @@ This governor exposes the following tunables:
represented by it to be 1.5 times as high as the transition latency
(the default)::
# echo `$(($(cat cpuinfo_transition_latency) * 3 / 2))` > ondemand/sampling_rate
# echo $(($(cat cpuinfo_transition_latency) * 3 / 2)) > ondemand/sampling_rate
``up_threshold``
If the estimated CPU load is above this value (in percent), the governor