Date: Tue, 6 Sep 2016 11:09:11 -0700 From: "Lundberg, Johannes" <johannes@brilliantservice.co.jp> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: David Demelier <demelier.david@gmail.com>, "freebsd-x11@freebsd.org" <freebsd-x11@freebsd.org>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: vt(4) not power friendly? (was: High CPU temperature and high fans level) Message-ID: <CAASDrV=DSr3biYcfcXXmFy8QoTtAh78PWcrcS%2B4GC3Nri82JMA@mail.gmail.com> In-Reply-To: <CAASDrVm3cji8uBjpOGJQ8Xp%2B%2BRv8JvFQTGf4UhLdfAXP7XLPwA@mail.gmail.com> References: <mailman.101.1468756802.10563.freebsd-questions@freebsd.org> <20160718224548.T324@sola.nimnet.asn.au> <578F5688.8010207@gmail.com> <20160720214809.M324@sola.nimnet.asn.au> <216b40cf-d13d-bc8e-8e39-4d1de2b31fb4@gmail.com> <CAASDrVmiyQOEK9N4S8gsnmK3m==sZya=tTH59xb4A5Dp_RLc8g@mail.gmail.com> <CAJ-VmomDkS11tpX-i140JEwo=ggN=idXk7UHhpmpb4M8Swet7A@mail.gmail.com> <CAASDrVm3cji8uBjpOGJQ8Xp%2B%2BRv8JvFQTGf4UhLdfAXP7XLPwA@mail.gmail.com>
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Ok, so it seems hw.vga.textmode has no effect on UEFI only systems, correct? At least, I couldn't tell any difference between text and graphics mode on Intel Cherryview... Doing this on an older traditional BIOS laptop gives at idle console login prompt: textmode i915kms not loaded 10.1W graphics mode i915kms not loaded 10.2W i915kms loaded 9.2W Refreshing screen contents by doing "ls" 10 times / second with alternating folders. textmode 10.3W graphicsmode 10.5W i915kms 10.8W Measured with acpiconf -i 0 (charger disconnected)=E2=80=8B. Numbers are average over several measurements. At one time "textmode i915kms not loaded" did show 9.3W so it's difficult to say if there really is a difference between text and graphics mode. However, there's a clear difference between i915kms loaded vs not loaded. Not so big that the fans start to go high though... =E2=80=8BConclusion: According to these tests maybe it's not a big deal for the average user who loads X or works in console but considering all the servers out there idling at the console prompt there's a lot of wasted energy.... I haven't looked into it that much but it seems that vt is forcing screen refresh at 25 Hz. Might be a good idea to do a more event driven rendering and postpone melting the ice caps a little longer :) =E2=80=8B On Thu, Sep 1, 2016 at 3:21 PM, Lundberg, Johannes < johannes@brilliantservice.co.jp> wrote: > Adding > hw.vga.textmode=3D1 > to /boot/loader.conf does not make any difference. > > On Sun, Aug 28, 2016 at 7:03 PM, Adrian Chadd <adrian.chadd@gmail.com> > wrote: > >> On 18 August 2016 at 16:18, Lundberg, Johannes >> <johannes@brilliantservice.co.jp> wrote: >> > Hi >> > >> > I have been wondering about the same. I have a watt meter connected to >> my >> > dev board and I can clearly see power consumption going down when VT i= s >> > inactive. >> > >> > We should look into this. >> >> ... interesting. Hm. Can you boot vt into 80x25 text mode and test? >> >> >> -a >> >> > >> > On Thu, Aug 18, 2016 at 2:44 PM, David Demelier < >> demelier.david@gmail.com> >> > wrote: >> > >> >> On 20/07/16 15:20, Ian Smith wrote: >> >> >> >>> On Wed, 20 Jul 2016 12:46:32 +0200, David Demelier wrote: >> >>> > Le 18/07/2016 15:41, Ian Smith a =C3=A9crit : >> >>> > > In freebsd-questions Digest, Vol 632, Issue 8, Message: 21 >> >>> > > On Sun, 17 Jul 2016 11:59:32 +0200 David Demelier >> >>> > > <demelier.david@gmail.com> wrote: >> >>> > > > 2016-07-17 0:25 GMT+02:00 Polytropon <freebsd@edvax.de>: >> >>> > > > > On Sun, 17 Jul 2016 00:06:07 +0200, David Demelier wrote= : >> >>> > > > >> Hello, >> >>> > > > >> >> >>> > > > >> I was trying FreeBSD 10.3 on my laptop (hp probook 4510= s) >> >>> and was surprised >> >>> > > > >> to see high CPU temperature and fans running high. >> >>> > > > >> >> >>> > > > >> No apps running, I get a temperature of 57C in >> >>> dev.cpu.x.temperature and >> >>> > > > >> fans run high (not able to get rpms). >> >>> > > > >> >> >>> > > > >> On a 4.6.3 Linux distro I get an average of 48C and fan= s >> are >> >>> quite low. >> >>> > > > >> >> >>> > > > >> Both tests were kept in tty. No Xorg running just a boo= t >> and >> >>> user login in >> >>> > > > >> console. >> >>> > > > >> >> >>> > > > >> Do you have any clue? >> >>> > > > > >> >>> > > > > Did you enable powerd? It can slow down the CPU when the >> >>> system >> >>> > > > > is idle, and increase the CPU speed when needed. This >> should >> >>> have >> >>> > > > > an effect on CPU temperature and fan speed. >> >>> > > >> >>> > > > Yes, I had powerd enabled, I tried -a adaptive, -a >> hiadaptive as >> >>> > > > suggested by Erich but it seems that only -a min has some >> little >> >>> > > > effect. I could get a temperature of 52C. I've tested back >> on >> >>> Linux >> >>> > > > and I got an average much lower (41C). >> >>> > > >> >>> > > We really need to see what speed the CPU is running at when >> idle. >> >>> > > >> >>> > > I think the fans running high - presumably from the sound and >> >>> airflow? - >> >>> > > rules out the sort of sensor errors Arthur reported (ie below >> >>> ambient :) >> >>> > > and I assume the box actually feels warmer .. 57C suggests a >> busy >> >>> CPU or >> >>> > > two .. but then it is summer there; what background ambient >> temp. >> >>> range? >> >>> > >> >>> > We have air-conditioning at work so ambient temperature is norma= l, >> >>> somewhat >> >>> > between 24-28. >> >>> >> >>> Ok, just checking. So the temperatures are indeed obviously >> excessive. >> >>> >> >>> > > > By the way the other sensors in hw.acpi.tz* are also much >> >>> higher than >> >>> > > > Linux (using lm_sensors). The highest value is my tz5 whic= h >> is >> >>> at 78C >> >>> >> >>> Isn't that tz2? tz5 is only 55C in your listing (and not active), b= ut >> >>> tz2 is indeed 78C and working the fan moderately hard. >> >>> >> >>> > > > almost 5 seconds after boot while the maximum tz value in >> Linux >> >>> > > > sensors is 55. >> >>> > > > >> >>> > > > I have no idea what's wrong. :( >> >>> >> >>> > > % sysctl hw.acpi >> >>> > > % sysctl debug.acpi >> >>> > > % sysctl dev.est # assuming intel? if not, maybe >> >>> dev.hwpstate? >> >>> > > % sysctl dev.cpu # best while idle, maybe plus when >> busier >> >>> >> >>> > Thanks for your answer, here I posted the output of the sysctl >> >>> variables you >> >>> > asked for: >> >>> > >> >>> > http://markand.fr/files/result.txt >> >>> >> >>> Thanks, that's a useful format. Well, a couple of things .. >> >>> >> >>> > I've ran them on a FreeBSD memstick, I needed to install a Linux >> >>> distro until >> >>> > I can find a solution because this drains my battery a lot. >> >>> >> >>> But did you start powerd after the memstick boot? From the CPU spee= d, >> >>> assuming it was generally idle, I suspect not? >> >>> >> >>> The big surprise is that CPU frequency (at least when you asked) is = at >> >>> maximum (except for Turboboost mode) and that it's only using C1 sta= te >> >>> when halted. C2 and C3 states provide a huge win for power >> consumption >> >>> - and so proportionally less heat. Alexander takes it to the limit >> at: >> >>> https://wiki.freebsd.org/TuningPowerConsumption >> >>> >> >>> hw.acpi.cpu.cx_lowest: C1 # the 'master setting' for cx_lowest >> >>> >> >>> # =3D=3D> sysctl dev.cpu >> >>> dev.cpu.1.cx_usage: 100.00% 0.00% 0.00% last 14427us >> >>> dev.cpu.1.cx_lowest: C1 >> >>> dev.cpu.1.cx_supported: C1/1/1 C2/2/1 C3/3/162 >> >>> [..] >> >>> dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% last 13756us >> >>> dev.cpu.0.cx_lowest: C1 >> >>> dev.cpu.0.cx_supported: C1/1/1 C2/2/1 C3/3/162 >> >>> dev.cpu.0.freq_levels: 2101/35000 2100/35000 1600/23888 1200/15000 >> >>> dev.cpu.0.freq: 2100 >> >>> >> >>> Also noted that it's running on battery (which is good for this >> purpose) >> >>> hw.acpi.acline: 0 >> >>> hw.acpi.battery.info_expire: 5 >> >>> hw.acpi.battery.units: 1 >> >>> hw.acpi.battery.state: 1 >> >>> hw.acpi.battery.time: 91 # can likely be doubled of better >> >>> hw.acpi.battery.life: 79 >> >>> >> >>> > The average temperature was 50C, a bit less than the installed >> >>> version on >> >>> > hard drive where I have seen higher values. This is interesting.= I >> >>> will >> >>> > double check if something else makes the CPU more busy. >> >>> >> >>> Well you need to duplicate basic conditions when booted from memstic= k; >> >>> after boot, as root you should be able to: >> >>> >> >>> # service powerd onestart >> >>> # sysctl hw.acpi.cpu.cx_lowest=3DCmax >> >>> >> >>> and then observe dev.cpu.0.freq and dev.cpu.0.cx_usage .. >> >>> >> >>> Though whenever you plug it in, or unplug it, you'll have to set the >> >>> sysctl again, unless you update the settings in /etc/rc.conf >> (possible?) >> >>> >> >>> Which should a) have it drop back to 1200 MHz and b) allow it to use >> C2 >> >>> and probably C3 .. you might check dmesg for any mention of 'C2' or >> 'C3' >> >>> as certain combinations of chosen timecounter can limit C3 or even C= 2 >> >>> use, and will say so (usually to do with use of the TSC as >> timecounter) >> >>> >> >>> On 9.3 one still had to explicily set these: >> >>> !grep cx /etc/defaults/rc.conf >> >>> performance_cx_lowest=3D"HIGH" # Online CPU idle state >> >>> economy_cx_lowest=3D"HIGH" # Offline CPU idle state >> >>> !grep cx /etc/rc.conf >> >>> performance_cx_lowest=3DC3 >> >>> economy_cx_lowest=3DC3 >> >>> >> >>> But on head sources from a couple of months ago: >> >>> !grep cx /usr/head/src/etc/defaults/rc.conf >> >>> performance_cx_lowest=3D"C2" # Online CPU idle state >> >>> economy_cx_lowest=3D"Cmax" # Offline CPU idle state >> >>> >> >>> So you might want to check what is there for 10.3? Setting both >> 'Cmax' >> >>> (or at least to C2) should be safe, the head defaults above are like= ly >> >>> more conservative for a few boxes that aren't happy with C3 and >> higher. >> >>> >> >>> If that works, with powerd running CPU at 1200 MHz, it should save >> lots >> >>> of power and run plenty cooler. Good luck! >> >>> >> >>> Warner Losh has suggested disabling Turbo mode on these if having he= at >> >>> problems, by adding (in your case) '-M 2100' to powerd_flags, but th= at >> >>> might be something for later. Meanwhile go for C2 and C3+ if >> possible. >> >>> >> >>> As for fans, tz2 and tz0 are the only ones with 'active' cooling, >> though >> >>> tz2 is the only one also with passive cooling, so is most probably t= he >> >>> CPU/s - see acpi_thermal(4). >> >>> >> >>> This one doesn't turn on passive cooling (ie slowing the CPU) until >> only >> >>> 3C below critical shutdown temperature, which seems a bit close to m= e. >> >>> >> >>> At that moment it was above 45C and below 62C, so running at level 3= . >> >>> >> >>> hw.acpi.thermal.tz2._TSP: 300 >> >>> hw.acpi.thermal.tz2._TC2: 2 >> >>> hw.acpi.thermal.tz2._TC1: 1 >> >>> hw.acpi.thermal.tz2._ACx: 84.0C 74.0C 62.0C 45.0C 38.0C 30.0C -1 -1 >> -1 -1 >> >>> hw.acpi.thermal.tz2._CRT: 108.0C >> >>> hw.acpi.thermal.tz2._HOT: -1 >> >>> hw.acpi.thermal.tz2._PSV: 105.0C >> >>> hw.acpi.thermal.tz2.thermal_flags: 0 >> >>> hw.acpi.thermal.tz2.passive_cooling: 1 >> >>> hw.acpi.thermal.tz2.active: 3 >> >>> hw.acpi.thermal.tz2.temperature: 53.0C >> >>> >> >>> This fan is also active at level 3 (0-based, so above 72C, with 3 >> higher >> >>> speeds to go). It can be hard to tell what TZ matches what 'device'= . >> >>> >> >>> hw.acpi.thermal.tz0._TSP: -1 >> >>> hw.acpi.thermal.tz0._TC2: -1 >> >>> hw.acpi.thermal.tz0._TC1: -1 >> >>> hw.acpi.thermal.tz0._ACx: 105.0C 96.0C 87.0C 72.0C 64.0C 57.0C 30.0C >> -1 >> >>> -1 -1 >> >>> hw.acpi.thermal.tz0._CRT: 108.0C >> >>> hw.acpi.thermal.tz0._HOT: -1 >> >>> hw.acpi.thermal.tz0._PSV: -1 >> >>> hw.acpi.thermal.tz0.thermal_flags: 0 >> >>> hw.acpi.thermal.tz0.passive_cooling: 0 >> >>> hw.acpi.thermal.tz0.active: 3 >> >>> hw.acpi.thermal.tz0.temperature: 78.0C >> >>> >> >>> That one seems pretty high. I'd suspect the GPU(/s?) but you're not >> >>> running X, so hmmm .. definitely not CPU though. >> >>> >> >>> cheers, Ian >> >>> >> >> >> >> Hello all, >> >> >> >> Sorry for this late response, I was in vacation. >> >> >> >> I've spent some time into this problem again, and I think I have foun= d >> the >> >> culprit. I first disabled completely the new console driver vt(4) to >> use >> >> the old syscons and the CPU coretemp temperature immediately fell. >> >> >> >> Running with vt(4) and radeonkms loaded: average of 47=C2=B0, no X, j= ust a >> >> plain tty with nothing running. >> >> >> >> Running with syscons: average of 38=C2=B0. >> >> >> >> That's why I've CC'ed to freebsd-x11@, >> >> >> >> Is there power issue in the new vt(4) driver? I've also tried with >> >> textmode with the same results. >> >> >> >> Regards, >> >> >> >> -- >> >> David Demelier >> >> _______________________________________________ >> >> freebsd-x11@freebsd.org mailing list >> >> https://lists.freebsd.org/mailman/listinfo/freebsd-x11 >> >> To unsubscribe, send any mail to "freebsd-x11-unsubscribe@freebsd.org= " >> >> >> > >> > -- >> > =3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-= =3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- >> > =E7=A7=98=E5=AF=86=E4=BF=9D=E6=8C=81=E3=81=AB=E3=81=A4=E3=81=84=E3=81= =A6=EF=BC=9A=E3=81=93=E3=81=AE=E9=9B=BB=E5=AD=90=E3=83=A1=E3=83=BC=E3=83=AB= =E3=81=AF=E3=80=81=E5=90=8D=E5=AE=9B=E4=BA=BA=E3=81=AB=E9=80=81=E4=BF=A1=E3= =81=97=E3=81=9F=E3=82=82=E3=81=AE=E3=81=A7=E3=81=82=E3=82=8A=E3=80=81=E7=A7= =98=E5=8C=BF=E7=89=B9=E6=A8=A9=E3=81=AE=E5=AF=BE=E8=B1=A1=E3=81=A8=E3=81=AA= =E3=82=8B=E6=83=85=E5=A0=B1=E3=82=92=E5=90=AB=E3=82=93=E3=81=A7=E3=81=84=E3= =81=BE=E3=81=99=E3=80=82 >> > =E3=82=82=E3=81=97=E3=80=81=E5=90=8D=E5=AE=9B=E4=BA=BA=E4=BB=A5=E5=A4= =96=E3=81=AE=E6=96=B9=E3=81=8C=E5=8F=97=E4=BF=A1=E3=81=95=E3=82=8C=E3=81=9F= =E5=A0=B4=E5=90=88=E3=80=81=E3=81=93=E3=81=AE=E3=83=A1=E3=83=BC=E3=83=AB=E3= =81=AE=E7=A0=B4=E6=A3=84=E3=80=81=E3=81=8A=E3=82=88=E3=81=B3=E3=81=93=E3=81= =AE=E3=83=A1=E3=83=BC=E3=83=AB=E3=81=AB=E9=96=A2=E3=81=99=E3=82=8B=E4=B8=80= =E5=88=87=E3=81=AE=E9=96=8B=E7=A4=BA=E3=80=81 >> > =E8=A4=87=E5=86=99=E3=80=81=E9=85=8D=E5=B8=83=E3=80=81=E3=81=9D=E3=81= =AE=E4=BB=96=E3=81=AE=E5=88=A9=E7=94=A8=E3=80=81=E3=81=BE=E3=81=9F=E3=81=AF= =E8=A8=98=E8=BC=89=E5=86=85=E5=AE=B9=E3=81=AB=E5=9F=BA=E3=81=A5=E3=81=8F=E3= =81=84=E3=81=8B=E3=81=AA=E3=82=8B=E8=A1=8C=E5=8B=95=E3=82=82=E3=81=95=E3=82= =8C=E3=81=AA=E3=81=84=E3=82=88=E3=81=86=E3=81=8A=E9=A1=98=E3=81=84=E7=94=B3= =E3=81=97=E4=B8=8A=E3=81=92=E3=81=BE=E3=81=99=E3=80=82 >> > --- >> > CONFIDENTIALITY NOTE: The information in this email is confidential >> > and intended solely for the addressee. >> > Disclosure, copying, distribution or any other action of use of this >> > email by person other than intended recipient, is prohibited. >> > If you are not the intended recipient and have received this email in >> > error, please destroy the original message. >> > _______________________________________________ >> > freebsd-questions@freebsd.org mailing list >> > https://lists.freebsd.org/mailman/listinfo/freebsd-questions >> > To unsubscribe, send any mail to "freebsd-questions-unsubscribe >> @freebsd.org" >> > > --=20 =3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- =E7=A7=98=E5=AF=86=E4=BF=9D=E6=8C=81=E3=81=AB=E3=81=A4=E3=81=84=E3=81=A6=EF= =BC=9A=E3=81=93=E3=81=AE=E9=9B=BB=E5=AD=90=E3=83=A1=E3=83=BC=E3=83=AB=E3=81= =AF=E3=80=81=E5=90=8D=E5=AE=9B=E4=BA=BA=E3=81=AB=E9=80=81=E4=BF=A1=E3=81=97= =E3=81=9F=E3=82=82=E3=81=AE=E3=81=A7=E3=81=82=E3=82=8A=E3=80=81=E7=A7=98=E5= =8C=BF=E7=89=B9=E6=A8=A9=E3=81=AE=E5=AF=BE=E8=B1=A1=E3=81=A8=E3=81=AA=E3=82= =8B=E6=83=85=E5=A0=B1=E3=82=92=E5=90=AB=E3=82=93=E3=81=A7=E3=81=84=E3=81=BE= =E3=81=99=E3=80=82 =E3=82=82=E3=81=97=E3=80=81=E5=90=8D=E5=AE=9B=E4=BA=BA=E4=BB=A5=E5=A4=96=E3= =81=AE=E6=96=B9=E3=81=8C=E5=8F=97=E4=BF=A1=E3=81=95=E3=82=8C=E3=81=9F=E5=A0= =B4=E5=90=88=E3=80=81=E3=81=93=E3=81=AE=E3=83=A1=E3=83=BC=E3=83=AB=E3=81=AE= =E7=A0=B4=E6=A3=84=E3=80=81=E3=81=8A=E3=82=88=E3=81=B3=E3=81=93=E3=81=AE=E3= =83=A1=E3=83=BC=E3=83=AB=E3=81=AB=E9=96=A2=E3=81=99=E3=82=8B=E4=B8=80=E5=88= =87=E3=81=AE=E9=96=8B=E7=A4=BA=E3=80=81 =E8=A4=87=E5=86=99=E3=80=81=E9=85=8D=E5=B8=83=E3=80=81=E3=81=9D=E3=81=AE=E4= =BB=96=E3=81=AE=E5=88=A9=E7=94=A8=E3=80=81=E3=81=BE=E3=81=9F=E3=81=AF=E8=A8= =98=E8=BC=89=E5=86=85=E5=AE=B9=E3=81=AB=E5=9F=BA=E3=81=A5=E3=81=8F=E3=81=84= =E3=81=8B=E3=81=AA=E3=82=8B=E8=A1=8C=E5=8B=95=E3=82=82=E3=81=95=E3=82=8C=E3= =81=AA=E3=81=84=E3=82=88=E3=81=86=E3=81=8A=E9=A1=98=E3=81=84=E7=94=B3=E3=81= =97=E4=B8=8A=E3=81=92=E3=81=BE=E3=81=99=E3=80=82 --- CONFIDENTIALITY NOTE: The information in this email is confidential and intended solely for the addressee. 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