On Fri, Aug 7, 2009 at 9:32 AM, Rui Nuno Capela<[email protected]> wrote:
> this time however it looks that you can actually improve things when > several device drivers are hanging on a irq line. that is, one can tune > up the one and only the one actually intended (eg. "snd" => "irq/17-HDA > Inte" and nothing else) not so fast. unless things have *really* changed in h/w (and they may have) when the CPU sees a IRQ 17, it will still have to execute at least every handler until one of them says "yes it was me", and depending on the kernel design right now, possibly all of them. ergo, its not clear you will benefit from raising the priority of one versus the others. i'd be interested in hearing/reading the arguments for per-driver threads for this - on the face of it it seems rather odd to me. _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
