On Tue, Feb 7, 2017 at 4:48 AM, Zhu, Rex <Rex.Zhu at amd.com> wrote: > > Not set max fan speed in high performance level because of the fan noise. Reviewed-by: Alex Deucher <alexander.deucher at amd.com> > > Best Regards > Rex > ________________________________ > From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Zhu, Rex > <Rex.Zhu at amd.com> > Sent: Monday, February 6, 2017 10:09 PM > To: Andy Furniss; Alex Deucher > Cc: amd-gfx list > Subject: RE: [PATCH 4/4] drm/amdgpu: extend profiling mode. > > Please see in line. > > Best Regards > Rex > > -----Original Message----- > From: Andy Furniss [mailto:adf.lists at gmail.com] > Sent: Monday, February 06, 2017 8:32 PM > To: Zhu, Rex; Alex Deucher > Cc: amd-gfx list > Subject: Re: [PATCH 4/4] drm/amdgpu: extend profiling mode. > > Zhu, Rex wrote: >> Sorry for the late response. >> >> Yes, I set the fan speed to max in this patch when user set high >> performance. >> >> Considering that: 1. set fan speed to max is helpful to let GPU run under >> highest clock as long as possible. >> 2. avoid GPU rapid temperature rise in some case. > >>>OK, I guess you know if it's needed or not. >>>It is somewhat annoying noise wise, maybe one day there will be a way for >>> users to set fan back on auto? > > Rex: sure, you can echo "2"> /sys/class/drm/card0/device/hwmon/hwmon3(maybe > not 3)/pwm1_enable > >>>Accepting I don't know how the h/w works your point 2 would imply that >>> with perf on auto doing something like running a benchmark that pegs all the >>> clocks high should also > > Rex: based on the thermal, the fan speed.will be dynamically adjusted. > >>>I don't think that would be popular WRT noise. > > Rex: maybe I worried unnecessarily. I will change the code not to set fan > speed to max. thanks. > > > >> >> Best Regards >> Rex >> >> >> >> -----Original Message----- >> From: Andy Furniss [mailto:adf.lists at gmail.com] >> Sent: Wednesday, February 01, 2017 11:37 PM >> To: Alex Deucher >> Cc: Zhu, Rex; amd-gfx list >> Subject: Re: [PATCH 4/4] drm/amdgpu: extend profiling mode. >> >> Alex Deucher wrote: >>> On Tue, Jan 31, 2017 at 6:19 PM, Andy Furniss <adf.lists at gmail.com> >>> wrote: >>>> Andy Furniss wrote: >>>>> >>>>> Rex Zhu wrote: >>>>>> >>>>>> in profiling mode, powerplay will fix power state as stable as >>>>>> possible.and disable gfx cg and LBPW feature. >>>>>> >>>>>> profile_standard: as a prerequisite, ensure power and thermal >>>>>> sustainable, set clocks ratio as close to the highest clock ratio >>>>>> as possible. >>>>>> profile_min_sclk: fix mclk as profile_normal, set lowest sclk >>>>>> profile_min_mclk: fix sclk as profile_normal, set lowest mclk >>>>>> profile_peak: set highest sclk and mclk, power and thermal not >>>>>> sustainable >>>>>> profile_exit: exit profile mode. enable gfx cg/lbpw feature. >>>>> >>>>> >>>>> Testing R9 285 Tonga on drm-next-4.11-wip >>>>> >>>>> This commit has the effect that doing >>>>> >>>>> echo high > >>>>> /sys/class/drm/card0/device/power_dpm_force_performance_level >>>>> >>>>> instantly forces fan to (I guess) max, where normally it doesn't >>>>> need anything like as fast with the clocks high when doing nothing >>>>> else. >>>> >>>> >>>> Ping - just in case this got missed, still the same on current >>>> drm-next-4.11-wip >>> >>> Just a heads up, Rex was looking at this, but it's Chinese New Year this >>> week. >> >> OK, thanks & Happy new year. >> >> > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
