ac100 team mailing list archive

[Jani Monoses <jani.monoses@xxxxxxxxx>]

On Mon, Sep 26, 2011 at 7:35 PM, Jani Monoses <jani.monoses@xxxxxxxxx>wrote:

>
>
> On Mon, Sep 26, 2011 at 3:00 PM, Jani Monoses <jani.monoses@xxxxxxxxx>wrote:
>
>> 10Z model with kernel built from current git (not a deb package install)
>> and no modules loaded.
>>
>> 4294967296 bytes (4.3 GB) copied, 160.107 s, 26.8 MB/s
>> 0.02user 24.74system 2:40.12elapsed 15%CPU
>>
>> I need to see why I have worse numbers with the .deb
>>
>>
> So if I boot with a kernel and modules moved out of the /lib/modules path
> so it cannot find them on boot,
> the speed is 26/27 MB/s
>
> If I boot same kernel and allow modules to load (37 of them) the speed is
> 16/17 MB/s .
> Loading in all those modules in a kernel that started without them does not
> affect the performance, it remains at 26Mb
>
> Loading them at boot seems to have an effect on how the system behaves
> later.
>
>
>
blacklisting the ondemand_cpufreq governor does the trick. Not sure about
the downsides but it is faster with it disabled :)
possible more power used?

Jani