On 7/11/07, Darren Gibbs <tsquank@email-addr-hidden> wrote:
> We're doing an ARM-based embedded device, which right now is running
> vanilla 2.6.20. For the sake of simplicity we wrote an OSS driver
> that's simply double-buffering and writing to the DAC via I2S. We
> have a buffer underrun problem that is directly proportional to CPU
> load... no glitches when simply cat-ing a file to /dev/dsp, but lots
> of glitches when other things are happening on the system. Can
> anyone suggest tools/techniques/patches for improving the situation?
Run the audio playback app with SCHED_FIFO priority.
Lee
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Received on Thu Jul 12 00:15:10 2007
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