Re: Re: limit cpu

Eduardo Cortés (the_beast@softhome.net)
Thu, 16 Aug 2001 20:28:27 +0200


If somebody want to develope it, a lot of thanks. I see scheduler could be
better with this feature, opinions?

On Thursday 16 August 2001 19:53, Hua Zhong wrote:
> Current Linux scheduler doesn't seem to be able to support this nicely.
> You can set their priorities..but the values are not very intuitive. And
> if you sleep, the result could become very inaccurate.
>
> A new scheduler (sth like weighted round robin) is a more natural solution.
> You just assign weights to processes and they will be scheduled
> accordingly.
>
> ----- Original Message -----
> From: "Eduardo Cortés" <the_beast@softhome.net>
> To: <linux-kernel@vger.kernel.org>
> Sent: Thursday, August 16, 2001 9:29 AM
> Subject: Re: Re: limit cpu
>
> > On Thursday 16 August 2001 18:13, you wrote:
> > > > > > i want to know if linux can limit the max cpu usage (not cpu
> > > > > > time) per user,
> > > > >
> > > > > no. doing so would inherently slow down the scheduler.
> > > >
> > > > but *BSD has this feature, what's the problem in linux?
> > >
> > > I said that, thinking that it would require another test along
> > > the scheduler's fast path. but if we only test when a process
> > > has exhausted its quantum (or perhaps at counter-recalc),
> > > the overhead would be minor.
> >
> > I think that it's a good feature for linux, but I don't know if is very
> > complex to develope in linux. If I can limit the max cpu usage (in %) for
>
> an
>
> > user/group, the box is more solid.
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