Messages in this thread |  | | | Subject | Re: [PATCH 07/41] cpuset: Set up interface for nohz flag | | From | Mike Galbraith <> | | Date | Wed, 09 May 2012 17:33:42 +0200 |
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On Wed, 2012-05-09 at 10:05 -0500, Christoph Lameter wrote:
> I do not get how a cpuset could be used by an application with load > balancing disabled. Seems to defeat the purpose of the cpuset (which IMHO > is to generate a custom load balancing domain after all). You would > have to manually pin the processes to processors of the cpuset anyways. > > If you already have to pin then why would you want a cpuset on top of > that?
You don't have to turn load balancing completely off. I have at least one customer with modest isolation requirements, an exclusive set with load balancing enabled is perfect for them. OTOH, for tight constraint RT, I have no choice but to turn everything I can get my hands on off. Any such app manages itself or is busted crud, so all is well, cpusets work nicely.
I don't like cgroups much, but I've become rather fond of cpusets.
-Mike
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