diff options
Diffstat (limited to 'man/intel_gpu_frequency.rst')
-rw-r--r-- | man/intel_gpu_frequency.rst | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/man/intel_gpu_frequency.rst b/man/intel_gpu_frequency.rst new file mode 100644 index 00000000..e4de602c --- /dev/null +++ b/man/intel_gpu_frequency.rst @@ -0,0 +1,79 @@ +=================== +intel_gpu_frequency +=================== + +-------------------------------- +Manipulate Intel GPU frequencies +-------------------------------- +.. include:: defs.rst +:Author: Intel Graphics for Linux <intel-gfx@lists.freedesktop.org> +:Date: 2016-03-01 +:Version: |PACKAGE_STRING| +:Copyright: 2015-2016 Intel Corporation +:Manual section: |MANUAL_SECTION| +:Manual group: |MANUAL_GROUP| + +SYNOPSIS +======== + +**intel_gpu_frequency** [*OPTIONS*] + +DESCRIPTION +=========== + +A program to manipulate Intel GPU frequencies. Intel GPUs will automatically +throttle the frequencies based on system demands, up when needed, down when +not. This tool should only be used for debugging performance problems, or trying +to get a stable frequency while benchmarking. + +Intel GPUs only accept specific frequencies. The tool may, or may not attempt to +adjust requests to the proper frequency if they aren't correct. This may lead to +non-obvious failures when setting frequency. Multiples of 50MHz is usually a +safe bet. + +OPTIONS +======= + +-e + Lock frequency to the most efficient frequency. + +-g, --get + Get all the current frequency settings. + +-s FREQUENCY, --set=FREQUENCY + Lock frequency to an absolute value (MHz). + +-c, --custom + Set a min, or max frequency "min=X | max=Y". + +-m, --max + Lock frequency to max frequency. + +-i, --min + Lock frequency to min (never a good idea, DEBUG ONLY). + +-d, --defaults + Return the system to hardware defaults. + +-h, --help + Show help. + +-v, --version + Show version. + +EXAMPLES +======== + +intel_gpu_frequency -gmin,cur + Get the current and minimum frequency. + +intel_gpu_frequency -s 400 + Lock frequency to 400Mhz. + +intel_gpu_frequency -c max=750 + Set the max frequency to 750MHz + +REPORTING BUGS +============== + +Report bugs to https://bugs.freedesktop.org. |