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

Lee Revell rlrevell at joe-job.com
Sat Jan 22 16:47:33 EST 2005


On Sat, 2005-01-22 at 15:39 -0600, Jack O'Quin wrote:
> > On Sat, 2005-01-22 at 21:03 +0100, Florian Schmidt wrote:
> >> 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.
> 
> Lee Revell <rlrevell at joe-job.com> writes:
> > http://kerneltrap.org/node/4406
> 
> By all means play around with this.  But, maintain a healthy
> skepticism about it.  I seriously doubt any of it is worth worrying
> about until after realtime CPU scheduling is rock solid (which is
> clearly not the case yet).

Exactly, IO works well enough now, we should not encourage people to do
it from an RT thread.  If updatedb interferes with your HDR then you are
simply not using a big enough buffer.

Lee



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