Celeron J3160 with enabled Turbo mode stays at 480MHz (lowestsetting) forever and can not lower frequency without Tuebo mode

[Cy Schubert]

In message <43d68d5a-d8b7-965d-52a6-3eff6cdae1b6 at vangyzen.net>, Eric 
van Gyzen
writes:
> On 9/5/18 4:35 AM, Lev Serebryakov wrote:
> >   BTW, these four settings in rc.conf(5)
> > 
> >    performance_cx_lowest
> >    performance_cpu_freq
> >    economy_cx_lowest
> >    economy_cpu_freq
> > 
> > do NOTHING. They are not used ANYWHERE but rc.conf and rc.conf.5!
>
> They are used by /etc/rc.d/power_profile, but not in a way that grep can 
> find.
>
> >   BTW, "Turbo mode enabled + dev.cpu.X.cx_lowset=C3 + powerd" works, but
> > gives only 1601 Mhz, not 2240MHz max:
> > 
> > TURBO ON:
> > dev.cpu.0.freq_levels: 1601/2000 1600/2000 1520/1900 1440/1800 1360/1700 12
> 80/1600 1200/1500 1120/1400 1040/1300 960/1200 880/1100 800/1000 720/900 640/
> 800 560/700 480/600 420/525 360/450 300/375 240/300 180/225 120/150 60/75
> > 
> > TURBO OFF:
> > dev.cpu.0.freq_levels: 1600/2000 1520/1900 1440/1800 1360/1700 1280/1600 12
> 00/1500 1120/1400 1040/1300 960/1200 880/1100 800/1000 720/900 640/800 560/70
> 0 480/600 420/525 360/450 300/375 240/300 180/225 120/150 60/75
>
> 1601 is not the actual frequency.  That is just how it is reported.  It 
> is almost certainly running much higher than 1601.

We don't know this until we can independently verify it. Do you mind 
running some benchmarks with and without turbo mode?


-- 
Cheers,
Cy Schubert <Cy.Schubert at cschubert.com>
FreeBSD UNIX:  <cy at FreeBSD.org>   Web:  http://www.FreeBSD.org

	The need of the many outweighs the greed of the few.