[ltp] cpufreqd doesn't change frequency any more

[Joachim Schrod]

>>>>> "MG" == Marius Gedminas <mgedmin@b4net.lt> writes:

MG> You can only manually set the CPU speed when policy (as shown in
MG> /proc/cpufreq) is "userspace".

MG> Try

MG>   echo 924000:1400000:userspace > /proc/cpufreq
MG>   cat /proc/sys/cpu/0/speed-max > /proc/sys/cpu/0/speed

Thanks, this led to the workaround I was looking for.

FYI, the commands above didn't work exactly. First, I need to set the
CPU speed to the minimum frequency, then setting it to the maximum
frequency succeeds. I.e.,

    cd /proc
    echo '0%100%userspace' >cpufreq
    cd sys/cpu/0
    cat speed-min >speed
    cat speed-max >speed

works. I think this is due to my assumption that speedstep-centrino is
not accepting new modes, and the commands above seems to trigger a
reset.

Afterwards a HUP to cpufreqd makes it control my frequency again
properly.

Cheers,
	Joachim

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Joachim		     The most exciting phrase to hear in science, the
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<jschrod@acm.org>    (I found it!) but "That's funny..." [Isaac Asimov]