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20d6e0f41b
getsubopt is not available in android. The "get" option doesn't really need sub-options, just display all the current frequency settings (as per discussion with Ben Widawsky) Ben v2: Remove the -geff example in the header Fixed another typo for the --set while there (found by Dave Gordon) Signed-off-by: Tim Gore <tim.gore@intel.com> Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
59 lines
1.7 KiB
Groff
59 lines
1.7 KiB
Groff
.TH INTEL_FREQUENCY: "1" "January 2015" "intel_gpu_frequency" "User Commands"
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.SH NAME
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intel_gpu_frequency: \- manual page for intel_gpu_frequency
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.SH SYNOPSIS
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.B intel_gpu_frequency
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[\fI\,-e\/\fR] [\fI\,--min | --max\/\fR] [\fI\,-g\/\fR] [\fI\,-s frequency_mhz\/\fR]
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.SH DESCRIPTION
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\&A program to manipulate Intel GPU frequencies. Intel GPUs
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will automatically throttle the frequencies based on system demands, up when
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needed, down when not. This tool should only be used for debugging performance
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problems, or trying to get a stable frequency while benchmarking.
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Intel GPUs only accept specific frequencies. The tool may, or may not attempt to
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adjust requests to the proper frequency if they aren't correct. This may lead to
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non-obvious failures when setting frequency. Multiples of 50MHz is usually a
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safe bet.
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.SH OPTIONS
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.TP
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\fB\-e\fR
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Lock frequency to the most efficient frequency
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.TP
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\fB\-g\fR, \fB\-\-get\fR
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Get all the current frequency settings
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.TP
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\fB\-s\fR, \fB\-\-set\fR
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Lock frequency to an absolute value (MHz)
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.TP
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\fB\-c\fR, \fB\-\-custom\fR
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Set a min, or max frequency "min=X | max=Y"
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.TP
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\fB\-m\fR \fB\-\-max\fR
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Lock frequency to max frequency
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.TP
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\fB\-i\fR \fB\-\-min\fR
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Lock frequency to min (never a good idea, DEBUG ONLY)
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.TP
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\fB\-d\fR \fB\-\-defaults\fR
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Return the system to hardware defaults
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.TP
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\fB\-h\fR \fB\-\-help\fR
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Returns this
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.HP
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\fB\-v\fR \fB\-\-version\fR Version
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.SH EXAMPLES
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.TP
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\fbintel_gpu_frequency \-gmin,cur\fR
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Get the current and minimum frequency
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.TP
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\fbintel_gpu_frequency \-s 400\fR
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Lock frequency to 400Mhz
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.TP
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\fbintel_gpu_frequency \-c max=750\fR
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Set the max frequency to 750MHz
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.PP
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.SH "REPORTING BUGS"
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Report bugs to https://bugs.freedesktop.org
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.SH COPYRIGHT
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Copyright (C) 2015 Intel Corporation
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