Messages in this thread | | | Date | Thu, 6 Dec 2012 19:19:34 +0100 | From | Jens Axboe <> | Subject | Re: [patch,v2] bdi: add a user-tunable cpu_list for the bdi flusher threads |
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On 2012-12-06 19:01, Tejun Heo wrote: > As for the original patch, I think it's a bit too much to expose to > userland. It's probably a good idea to bind the flusher to the local > node but do we really need to expose an interface to let userland > control the affinity directly? Do we actually have a use case at > hand?
We need to expose it. Once the binding is set from the kernel side on a kernel thread, it can't be modified.
Binding either for performance reasons or for ensuring that we explicitly don't run in some places is a very useful feature.
-- Jens Axboe
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