Messages in this thread | | | Date | Thu, 28 Aug 2008 13:50:35 +0200 | From | Andi Kleen <> | Subject | Re: [PATCH 6/6] sched: disabled rt-bandwidth by default |
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On Thu, Aug 28, 2008 at 01:19:13PM +0200, Peter Zijlstra wrote: > On Thu, 2008-08-28 at 13:09 +0200, Andi Kleen wrote: > > > Even if the system has multiple CPUs, and even if just a single CPU is > > > fully utilized by an RT task, without the rt-limit the system will still > > > lock up in practice due to various other factors: workqueues and tasks > > > being 'stuck' on CPUs that host an RT hog. > > > > The load balancer will not notice that a particular CPU is busy > > with real time tasks? > > Not currently, working on that though.
I wonder if it would make sense to break affinities in extreme case? With that even the workqueues would work again.
-Andi
-- ak@linux.intel.com
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