Messages in this thread | | | Date | Wed, 19 Nov 2008 11:49:36 -0800 | From | Max Krasnyansky <> | Subject | Re: RT sched: cpupri_vec lock contention with def_root_domain and no load balance |
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Gregory Haskins wrote: > If you tried creating different cpusets and it still had them all end up > in the def_root_domain, something is very broken indeed. I will take a > look.
I beleive that's the intended behaviour. We always put cpus that are not balanced into null sched domains. This was done since day one (ie when cpuisol= option was introduced) and cpusets just followed the same convention.
I think the idea is that we want to make balancer a noop on those processors. We could change cpusets code to create a root sched domain for each cpu I guess. But can we maybe scale cpupri some other way ?
Max
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