Re: A nice CPU resource controller

From: Mike Galbraith
Date: Thu Aug 31 2006 - 01:30:19 EST


On Thu, 2006-08-31 at 06:53 +0000, Mike Galbraith wrote:
> On Thu, 2006-08-31 at 11:07 +1000, Peter Williams wrote:
>
> > But your implication here is valid. It is better to fiddle with the
> > dynamic priorities than with nice as this leaves nice for its primary
> > purpose of enabling the sysadmin to effect the allocation of CPU
> > resources based on external considerations.
>
> I don't understand. It _is_ the administrator fiddling with nice based
> on external considerations. It just steadies the administrator's hand.

When extended to groups, I see your point. The admin would lose his
ability to apportion bandwidth _within_ the group because he's already
turned his only knob. That is going to be just as much of a problem for
other methods though, and is just a question of how much complexity you
want to pay to achieve fine grained control.

-Mike

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