Re: [RFC] cpuset: remove sched domain hooks from cpusets

[Christoph Lameter]

On Mon, 23 Oct 2006, Nick Piggin wrote:

> It is somewhat improved. The load balancing will now retry other CPUs,
> but this is pretty costly in terms of latency and rq lock hold time.
> And the algorithm itself still breaks down if you have lots of pinned
> tasks, even if the load balancer is willing to try lesser loaded cpus.

We would need to have a way of traversing the processors by load in order 
to avoid it. John Hawkes solves that issue earlier in 2.4.X by managing a 
list of processors according to their load.


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