CPU Overheating Problem When Running 4 CPU Intensive Threads with Latest Untained Kernel
E.S. Rosenberg
esr+linux-il at g.jct.ac.il
Mon May 19 17:40:00 IDT 2014
2014-05-19 12:55 GMT+03:00 Shlomi Fish <shlomif at shlomifish.org>:
> Hi Efraim,
>
> On Mon, 19 May 2014 10:19:23 +0300
> Efraim Flashner <efraim.flashner at gmail.com> wrote:
>
> > Also, nice -19 is higher priority than nice 19.
> >
>
> No, it's not. When you run the "nice -19" it sets it to the lowest possible
> priority. I see these processes in htop where the nice is set at 19 and I
> cannot lower it at all.
>
I may be misreading you but:
nice values go between -20 and 20 where negative numbers have a *higher*
priority then positive numbers, it's a "rating" of how "nice" my program is
to others, so -20 is absolutely rude to the others and doesn't share
whereas 20 will always yield right of way...
http://en.wikipedia.org/wiki/Nice_%28Unix%29
Regards,
Eliyahu - אליהו
>
> > 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.
> >
>
> Ah, I see, thanks.
>
> Regards,
>
> Shlomi Fish
>
> --
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