[linux-audio-dev] Realtime audio and IO schedulers

Hi,

i wonder if there's a way to grant a process priority over all other
processes when it comes to disk i/o.. Somewhat similar like SCHED_FIFO
scheduling for cpu priorities.

This would be very useful especially for high reliability hard disk
recording. I mean it would be simply great to record 24 tracks in ardour
and not having to worry about disk underrun [or overrun] when a cronjob
kicks in that scans the whole filesystem..

I heard and read a bit about the new io schedulers in the 2.6.x kernels,
but i wasn't able to find any infos specifically on this subject..

So anyone knows more? Please let us know! Maybe current io-schedulers
actually take the cpu priorities [nice level or relatime priorities]
into account when assigning io bandwidth to processes, but if so i
wouldn't know where to look to find out..

Thanks,
Flo

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