Zhu, Rex wrote:
Not set max fan speed in high performance level because of the fan noise.
Thanks, I tested the patch and all seems OK again.
Best Regards
Rex
________________________________
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> on behalf of Zhu, Rex
<rex....@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.li...@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.li...@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.li...@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.
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