[linux-dvb] High load with Terratec Cinergy 1200 DVB-T

Olli Lammi olammi at olammi.iki.fi
Tue Jun 24 16:22:42 CEST 2008


On Tue, 10 Jun 2008, Robert Schedel wrote:

> Olli Lammi wrote:
>> Hello!
>> ------
>> 
>> I recently moved to area where only DVB-T is available and changed my
>> DVB-C-cards to two Terratec Cinergy 1200 DVB-T cards. However adding
>> one card lifted the load of my server to approx 0.8 and adding the
>> second card to approx 1.6. No processes are consuming the processor time so 
>> I think the high load is due to dvb driver or kernel.
>
> Please see: <http://bugzilla.kernel.org/show_bug.cgi?id=10459>
>
>> Is this a known problem and is there a workaround available?. I tried to 
>> search the net for answers but found none.
>
> The last email for this was just three days ago, titled "[linux-dvb] 
> budget_av,  high cpuload with kncone tvstar".


Hello again!

I have now first tried the saa7146_sleep-patch as the thread above 
suggests adapted to the 2.6.22.14-72.fc6-kernel. There was no change in 
the load.

Today I upgraded the entire server kernel to kernel.org 2.6.28.5-version 
and applied the Oliver Endriss saa7147_sleep-patch to it. Still my two 
Terratec cards produce approx 1.5 load when system is about idle.

Any suggestions how to debug or try to solve the problem?

Olli Lammi

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