Re: [PATCH 01/13] sched: Add 3 new scheduler syscalls to support anextended scheduling parameters ABI
From: Peter Zijlstra
Date: Tue Jan 21 2014 - 11:07:25 EST
On Tue, Jan 21, 2014 at 11:02:55AM -0500, Steven Rostedt wrote:
> On Tue, 21 Jan 2014 16:46:03 +0100
> Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> > On Tue, Jan 21, 2014 at 04:38:51PM +0100, Peter Zijlstra wrote:
> > > SCHED_DEADLINE: Sporadic task model deadline scheduling
> > > SCHED_DEADLINE is an implementation of GEDF (Global Earliest
> > > Deadline First) with additional CBS (Constant Bandwidth Server).
> > We might want to re-word that to:
> > SCHED_DEADLINE currently is an implementation of GEDF, however
> > any policy that correctly schedules the sporadic task model is
> > a valid implementation.
> > To make sure we should not rely on the actual implementation; there's
> > many possible algorithms to schedule the sporadic task model.
> Probably should post some links to GEDF documentation too?
At best I think we can do something like:
Documentation/scheduler/sched_deadline.txt in the Linux kernel
source tree (since kernel 3.14).
Possibly also an ISBN for a good scheduling theory book (if there exists
such a thing), but I would have to rely on others to provide such as my
shelfs are devoid of such material.
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