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SubjectRe: [RFD] 'nice' attribute for executable files
On Wed, 2005-03-30 at 18:07 +0200, Wiktor wrote:
> Bodo Eggert wrote:
> > Wiktor <> wrote:
> >>so i thought that it would be nice to add an attribute to file
> >>(changable only for root) that would modify nice value of process when
> >>it starts. if there is one byte free in ext2/3 file metadata, maybe it
> >>could be used for that? i think that it woundn't be more dangerous than
> >>setuid bit.
> >
> > I guess there should be a maximum renice value ulimit instead, which would
> > allow running allmost any user task on a higher nice level, except the
> > important stuff, with the additional benefit of being able to temporarily
> > renice some tasks until the more important work is done.
> >
> > I remember something similar being discussed for realtime tasks, but I don't
> > remember the outcome.
> my xmms problem is unimportant here, i've posted this thread to propose
> some new feature in filesystem, not to solve problem with multimedia player!
> max renice ulimit is quite good idea, but it allows to change nice of
> *any* process user has permissions to. it could be implemented also, but
> the idea of 'nice' file attribute is to allow *only* some process be
> run with lower nice. what's more, that nice would be *always* the same
> (at process startup)!

Please see the voluminous realtime-lsm threads for some objections to
this approach.


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