Re: Poor desktop responsiveness with background I/O-operations

Mike Galbraith
2009-09-22T11:32:06Z

On Tue, 2009-09-22 at 08:22 -0300, Henrique de Moraes Holschuh wrote:
> On Tue, 22 Sep 2009, Mike Galbraith wrote:
> > On Tue, 2009-09-22 at 09:06 +0200, Mike Galbraith wrote:
> > > I don't know if distros provide a tool that supports SCHED_IDLE, if so,
> > > you can use that to set both CPU and IO usage to IDLE class in one go.
> >
> > P.S. I just remembered, don't use SCHED_IDLE with kernels < 2.6.28.
> > There are two patches wrt this scheduling class which did not go to the
> > stable trees less than 2.6.28.
>
> Since 2.6.27 is long-term, maybe they should be sent to 2.6.27? It is weird
> to have a long-term stable kernel for which the recommendation is "don't use
> SCHED_IDLE".

Yeah, that's what I thought too, but apparently maintainers didn't think
SCHED_IDLE was common/important enough.

-Mike