| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.15 46/84] intel_pstate: Update documentation of {max,min}_perf_pct sysfs files | Date | Tue, 15 Jul 2014 16:17:43 -0700 |
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3.15-stable review patch. If anyone has any objections, please let me know.
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From: Dirk Brandewie <dirk.j.brandewie@intel.com>
commit 41629a8233470325bfbb60377f555f9e8acc879f upstream.
Update documentation to make the interpretation of the values clearer
Link: https://bugzilla.kernel.org/show_bug.cgi?id=64251 Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- Documentation/cpu-freq/intel-pstate.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/Documentation/cpu-freq/intel-pstate.txt +++ b/Documentation/cpu-freq/intel-pstate.txt @@ -15,10 +15,13 @@ New sysfs files for controlling P state /sys/devices/system/cpu/intel_pstate/ max_perf_pct: limits the maximum P state that will be requested by - the driver stated as a percentage of the available performance. + the driver stated as a percentage of the available performance. The + available (P states) performance may be reduced by the no_turbo + setting described below. min_perf_pct: limits the minimum P state that will be requested by - the driver stated as a percentage of the available performance. + the driver stated as a percentage of the max (non-turbo) + performance level. no_turbo: limits the driver to selecting P states below the turbo frequency range.
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