CPU freq & core temp
Mitsuho Iizuka
m-iizuka at cp.jp.nec.com
Wed Apr 22 05:13:16 UTC 2009
Hi,
> The question is, how do I connect the core temp readings to the cpu
> frequency control? The old userspace cpufreq had command line options
> for doing that.
Have you tried to use Gkrellm and gkrellm cpu freq plugin ?
> I have a valid lm-sensors config ("sensors" tells me the four core
> temps). I have /sys/devices/platform/coretemp.* and they tell me the
> right core temps.
It is not absolute temp. it seems 5-10 oC higher than real temp.
> It's a pre-built DELL box, no overclocking. When all four cores are
> running at full speed (3.16MHz) for extended periods, the temp gets up
> around 85 C and the fans all speed up. I'd rather keep it cooler than
> that. One way is to reduce the clock speed. Another way is to dust
> the fans off, which I'll also be doing :-)
You may 1) change cpu heat think, and/or 2) get down cpu voltage(what do
you say, i forgot, but many PC vendors do not support this), and/or .....
But you can try '/usr/sbin/fancontrol' if you have fan noise other than
high cpu temp. cpu temp limit might be 105oC or so.
// M.Iizuka
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