On Sat, 2005-01-22 at 21:03 +0100, Florian Schmidt wrote:
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..
http://kerneltrap.org/node/4406
Lee