[linux-dvb] Re: Fw: DVB audio/video decoder API

[Holger Waechtler <holger@convergence.de>]

Hi Dennis,

Dennis wrote:
>>This could just as well be a high IRQ load due to the small
>>dual ported RAM which the AV7110 uses to pass data to the PC.
> 
> 
> 
> Sorry for not giving you the whole story. Currently, (P1-133 machine), using 
> the old (i.e. before NEWSTRUCT) drivers and vdr-1.0.4, I can record a channel 
> on card 2, while playing back a recording on card 1, at < 30-50% CPU. 
> 
> With the new setup, I can not even record 1 channel without things getting out 
> of hand (i.e. too high CPU usage). 

?!?
That's evil, indeed.


> So I am looking for the culprit basically :-)

Could you please install oprofile and try to find out where your CPU is 
spending it's time?

You get oprofile from http://oprofile.sourceforge.net/

thanks,

Holger



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