linuxaudio.org

On 01/08/2011 08:06 PM, Atte André Jensen wrote:

quoted text
> On 01/08/2011 03:55 PM, Robin Gareus wrote:

>

>> It really depends on your system (CPU, mainboard, BIOS settings) but

>> the ondemand gov works/ed fine on the Indamixx-1 release (Atom CPU,

>

> I kinda hoped we didn't have to do this...

>

> The exact same computer running ubuntu 10.04 with rt kernel (from ubuntu

> repos) works fine with ondemand, although I can push it harder when set

> to performance. 

Probably you can push it harder because if it is a multi-core system

(and you're using jack2 or tschack): The system-load may still be too

low for a ondemand CPU governor to react while DSP load is already at

the limit, causing x-runs.
> This kernel gives xruns and audible glitches with

quoted text
> ondemand even at light loads.

Thanks for the pointer. I'll look into differences of the .config

between pengutronix and ubuntu-10.4's linux-rt next week.

But it could be related to additionally applied patches as well, let's see.
> And the reason why I wrote "not really a problem" (besides the hope of

quoted text
> not having to go here) is that I am perfectly aware of the potential

> problems with ondemand govenor.

I'm glad you went and came here :) Sometimes small bits of information

in slightly OT conversations reveil interesting details.
Cheers!

robin
--

Robin Gareus

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