Re: 2.5.74-mm1

From: Davide Libenzi (
Date: Mon Jul 07 2003 - 09:47:14 EST

On Mon, 7 Jul 2003, Mel Gorman wrote:

> On Mon, 7 Jul 2003, Daniel Phillips wrote:
> > And set up distros to grant it by default. Yes.
> >
> > The problem I see is that it lets user space priorities invade the range of
> > priorities used by root processes.
> That is the main drawback all right but it could be addressed by having a
> CAP_SYS_USERNICE capability which allows a user to renice only their own
> processes to a highest priority of -5, or some other reasonable value
> that wouldn't interfere with root processes. This capability would only be
> for applications like music players which need to give hints to the
> scheduler.

The scheduler has to work w/out external input, period. If it doesn't we
have to fix it and not to force the user to submit external hints.

- Davide

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