9 Jan
2011
9 Jan
'11
4:46 p.m.
On 01/08/2011 08:06 PM, Atte André Jensen wrote:
On 01/08/2011 03:55 PM, Robin Gareus wrote:
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.
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. This kernel gives xruns and audible glitches with
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
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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