Re: Re: limit cpu

[Hua Zhong]

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" <[e-mail]>
To: <[e-mail]>
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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