Also, nice -19 is higher priority than nice 19. my netbook generally is in the mid 70s for temperature. When doing something intensive, such as starting chrome or installing a new kernel (update-initramfs or rebuilding modules) it'll go up to 99C, and then go back down over time. I have found that with the catalyst drivers my netbook runs cooler and uses less battery, but I haven't had it overheat and shutdown. If it regularly is near the top of the thermal limit then you should be worried, but only occasionally shouldn't be a big deal.
I did have a laptop that when using 3/8 threads at 100% would pass its thermal limit and shutdown. That one was clearly poorly designed. -Efraim On Mon, 19 May 2014 10:12:23 +0300 "E.S. Rosenberg" <esr+linux...@g.jct.ac.il> wrote: > Afaik all modern CPUs are fitted with mechanism that will slow them > down or turn them off when they get too got, those mechanisms are on > die and I'm pretty sure you can't disable them from the OS. > > > 2014-05-19 8:07 GMT+03:00 Oleg Goldshmidt <p...@goldshmidt.org>: > > > Shlomi Fish <shlo...@gmail.com> writes: > > > > > I'm getting many high temperatures in the log: > > > > > > coretemp-isa-0000 > > > Adapter: ISA adapter > > > Physical id 0: +98.0°C (high = +82.0°C, crit = +102.0°C) > > > Core 0: +98.0°C (high = +82.0°C, crit = +102.0°C) > > > Core 1: +97.0°C (high = +82.0°C, crit = +102.0°C) > > > > > > They eventually are dropped but it's still alarming. > > > > > > My questions are: > > > > > > 1. Is this a problem with the kernel? (Muli? Anyone? Can you > > > comment?) > > > > You can either wait for Muli's authoritative response about the > > kernel or run a test with a signficantly different kernel version > > yourself. It is reasonable to assume that if the kernel were to > > blame for CPU overheating for *any* reason at all it would have > > been noticed by people in any version that is more than a month > > old. So if your cutting edge 3.15.0-rc5 runs hot and some > > reasonably stable kernel (preferably distro-compiled and not > > self-compiled to avoid Kconfig weirdness on your end) doesn't you > > may start to suspect something. > > > > If you do get suspicious run your test (with both kernels) on a > > different computer - convince someone to boot off your USB or > > something. Then you may decide to report that 3.15.0-rc5 with a > > given configuration seems to act weirdly on more than one system. > > If it does, of course. > > > > In general, I wouldn't blame the kernel too soon. You do not > > provide any information on your computer's cooling facilities, form > > factor, enclosure type or brand, or, indeed, provenance (brand name? > > self-specced and self-assembled? overclocked by an unscrupulous > > neighbourhood computer shop without your knowledge? etc.). Could > > it be that its cooling is insufficient at high load? Have you > > verified that all your fans work fine? Is air flow good enough > > (you won't know, but [some] big brands are more likely to design > > for that)? Does anything (from dust to a wall that is too close) > > clog or block ventilation holes? Are the sensors correcty located, > > well calibrated, and working properly? > > > > As an additional wild hand-waving, does anything change if you > > switch hyperthreading off in the BIOS? > > > > -- > > Oleg Goldshmidt | p...@goldshmidt.org > > > > _______________________________________________ > > Linux-il mailing list > > Linux-il@cs.huji.ac.il > > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > > -- Efraim Flashner efraim.flash...@gmail.com 4096R/CA3D8351 created: 2013-10-08 GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351
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