Re: low priority soft RT?

fvw (fvw@chello.nl)
Thu, 22 Jul 1999 08:15:33 +0200


On Thu, 22 Jul 1999, cd_smith@ou.edu wrote:
> Anyone thought about allowing soft RT (SCHED_FIFO or SCHED_RR) tasks with
> negative priorities? These would only be executed if no other tasks of
> any type are there. Giving a normal Linux task a niceness value won't do
> this, as the task will still get some CPU time.
>
> I was just thinking back to past projects, and about a year ago I wished I
> had something like this to do background housekeeping tasks for a
> distributed application I was writing -- I wanted to do them if possible
> on a free system, and only schedule time on some system if they didn't get
> scheduled anyway.
>
> Since I'm sure this isn't a new idea, any good reasons not to allow this?
> (surely there can't be security implications, right?) I'm not really
> interested in doing it myself right now, but I might in the future if
> there aren't good reasons otherwise.

I for one would be very glad to see such a thing, especially for the
seti/GIMPS/distributed.net clients. Though it would be good for some of those
less important cron-tab jobs aswell....
--

Frank v Waveren
fvw@chello.nl
ICQ# 10074100

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