[LAU] Cpu scaling on performance, permanent

[Robin Gareus]

On 05/22/2011 04:25 PM, rosea.grammostola wrote:
> On 05/22/2011 03:53 PM, Robin Gareus wrote:
>> On 05/22/2011 12:15 PM, rosea.grammostola wrote:
>>> Hi Robin,
>>>
>>> I installed your jackfreqd tool on Debian, via the deb package.
>>> Do I have to do more to make this tool running properly?
>> no and yes.
>>
>> No, the tool works OOTB.
> Does the tool needs cpufrequtils?

sorry. I've missed that question.
No it does not.
jackfreqd interacts directly with /sys/devices/system/cpu/

>> You can verify it by running e.g.
>>      jack_cpu -c 60 # generate 60% JACK-DSP load
> jack_cpu , is that a jack2 only tool? I don't have it here.

see the previous email.

>> Check the JACK-load with `jack_cpu_load` or qjackctl.
>> To verify that frequency scaling works: Looking at GNOME
>> CPU-Freq-Scaling-Monitor (or similar) is the easiest way; otherwise:
>>      sudo watch cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq
>>
>> ..and..
>> Yes, because you may need to disable bus-frequency scaling and PCI
>> power-saving in the BIOS. (here's what it says here, but your BIOS may
>> differ: C1E halt state disabled,  EIST disabled,  Turbo disabled).
> 
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