Date: Fri, 8 Jun 2012 08:04:12 +0200 From: Andreas Nilsson <andrnils@gmail.com> To: Momchil Ivanov <momchil@xaxo.eu> Cc: freebsd-stable@freebsd.org, Martin Sugioarto <martin@sugioarto.com> Subject: Re: ULE Scheduler Message-ID: <CAPS9%2BStSuDGcCuXRufKkxs6_KHe6poLU2nzCBeoBtxDYEfS8oA@mail.gmail.com> In-Reply-To: <86r4tq7ijj.wl%momchil@xaxo.eu> References: <86fwa8szos.wl%momchil@xaxo.eu> <20120608005415.070cd4a9@zelda.sugioarto.com> <86r4tq7ijj.wl%momchil@xaxo.eu>
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On Fri, Jun 8, 2012 at 2:29 AM, Momchil Ivanov <momchil@xaxo.eu> wrote: > At Fri, 8 Jun 2012 00:54:15 +0200, > Martin Sugioarto wrote: > > > > [1 <text/plain; UTF-8 (quoted-printable)>] > > Am Thu, 07 Jun 2012 03:01:07 +0200 > > schrieb =CC=EE=EC=F7=E8=EB =C8=E2=E0=ED=EE=E2 <momchil@xaxo.eu>: > > > > > Is there some remedy? > > > > Hi, > > > > I remember this series, I've had a T60p and when I compiled world, I > > placed a fan in front of it to cool it down from 100=B0C. The differenc= e > > with T60p was that it simply shut off reaching 101=B0C. > > > > The problem is the hardware, not FreeBSD. T60p and obviously T60, too, > > was made by some crazy people who had the idea to cool the CPU und the > > GPU under the same heat sink. The funny thing is that the GPU is > > running at 70=B0C all the time, because FreeBSD does not implement > > voltage regulation for the VGA chipset. The result is that the GPU > > warms up the CPU to at least 55=B0C while idle. > > > > If you want to have a cooler CPU implement power saving for the Radeon > > chipset there. > > > > Martin > > [2 signature.asc <application/pgp-signature (7bit)>] > > > Hi, > > well, that is not true, I have been using the laptop since more than 4 > years without any problems. The thing is that yesterday I had it > docked and that seems to raise the idle temperature by about 10=B0C, so > I get docked somewhere about 42=B0C when doing nothing computationally > intensive: > > hw.acpi.thermal.tz0.temperature: 50.0C > hw.acpi.thermal.tz1.temperature: 42.0C > dev.cpu.0.temperature: 42.0C > dev.cpu.1.temperature: 42.0C > > So I probably have to shift things around to give the dock a bit more > room. However, the dust, the thermal liquid and the screws seem to > have contributed to the temperature increase too. The GPU (Nvidia > Quadro NVS 140M) might be an issue, nvidia-settings says 58=B0C (I am > not running any fancy graphics) and I've seen it getting over > 100-120=B0C before, when I am doing some opengl stuff. With the latter I > mean, that I know how to intentionally kill it. > > Anyway, I have solved my problem and that seems to not be related to > ULE at all. However, it was still surprising for me to find out how > ULE schedules computationally intensive tasks. > > Regards, > Momchil > My t61p also had overheating problems with fbsd, but never in linux. For me the fan control was somewhat broken: I had to turn off auto-mode and set max myself to get any heavy usage out of it. You might want to check that as well. Regards Andreas
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