Messages in this thread | | | Subject | Re: [RFC] CPU controllers? | From | Mike Galbraith <> | Date | Sun, 18 Jun 2006 09:36:16 +0200 |
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On Sat, 2006-06-17 at 23:42 -0700, Andrew Morton wrote: > On Sun, 18 Jun 2006 16:11:18 +1000 > Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> > Again, I don't care about the solutions at this stage. I want to know > > what the problem is. Please? > > Isolation. To prevent one group of processes from damaging the performance > of other groups, by providing manageability of the resource consumption of > each group. There are plenty of applications of this, not just > server-consolidation-via-server-virtualisation.
Scheduling contexts do sound useful. They're easily defeated though, as evolution mail demonstrates to me every time it's GUI hangs and I see that a nice 19 find is running, eating very little CPU, but effectively DoSing evolution nonetheless (journal). I wonder how often people who tried to distribute CPU would likewise be stymied by other resources.
-Mike
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