linuxaudio.org

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On Sat, Dec 8, 2012 at 2:19 PM, Paul Coccoli  wrote:
> On Sun, Dec 2, 2012 at 8:01 PM, Paul Davis

quoted text
> wrote:

> > nice has absolutely nothing to do with this, and if it has any effect,

> it is

> > accidental and should not be relied on.

>

> I know that's your stock answer whenever someone mentions nice, but if

> the OP is talking about SCHED_OTHER processes, nice does play a role.

>

nice alters the behaviour of scheduler with respect to SCHED_OTHER tasks

using an algorithm that is (almost) completely irrelevant for programs that

do very little interaction with the user and use most of their CPU time

streaming media.
applications that stream media should either (a) use enough buffering that

they do not run into xruns with respect to the delivery endpoint or (b) use

SCHED_FIFO/SCHED_RR (c) both. using nice is a bandaid that simply masks

design problems, if in fact it has the right effect at all.
--bcaec553ff982b3af504d05d01d4

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On Sat, D=

ec 8, 2012 at 2:19 PM, Paul Coccoli <pcoccoli@gmail.com> wr=

ote:

On Sun, Dec 2, 2012 at 8:0=

1 PM, Paul Davis <paul@lin=

uxaudiosystems.com> wrote:
> nice has absolutely nothing to do with this, and if it has any effect,=

 it is

quoted text
> accidental and should not be relied on.

I know that's your stock answer whenever someone mentions nice, b=

ut if

the OP is talking about SCHED_OTHER processes, nice does play a role.nice alters the behaviour of scheduler with respect to =

SCHED_OTHER tasks using an algorithm that is (almost) completely irrelevant=

 for programs that do very little interaction with the user and use most of=

 their CPU time streaming media.

applications that stream media should either (a) use enough buffering t=

hat they do not run into xruns with respect to the delivery endpoint or (b)=

 use SCHED_FIFO/SCHED_RR (c) both. using nice is a bandaid that simply mask=

s design problems, if in fact it has the right effect at all.
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