Re: RFC: THE OFFLINE SCHEDULER

Peter Zijlstra
2009-08-25T19:10:44Z

On Tue, 2009-08-25 at 14:03 -0400, Christoph Lameter wrote:
> On Tue, 25 Aug 2009, Mike Galbraith wrote:
>
> > I asked the questions I did out of pure curiosity, and that curiosity
> > has been satisfied. It's not that I find it useless or whatnot (or that
> > my opinion matters to anyone but me;). I personally find the concept of
> > injecting an RTOS into a general purpose OS with no isolation to be
> > alien. Intriguing, but very very alien.
>
> Well lets work on the isolation piece then. We could run a regular process
> on the RT cpu and switch back when OS services are needed?

Christoph, stop being silly, this offline scheduler thing won't happen,
full stop.

Its not a maintainable solution, it doesn't integrate with existing
kernel infrastructure, and its plain ugly.

If you want something work within Linux, don't build kernels in kernels
or other such ugly hacks.