Messages in this thread | | | Date | Wed, 23 Aug 2017 09:55:51 -0500 (CDT) | From | Christopher Lameter <> | Subject | Re: [RFC PATCH 12/12] housekeeping: Reimplement isolcpus on housekeeping |
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On Wed, 23 Aug 2017, Frederic Weisbecker wrote:
> While at it, this is a proposition for a reimplementation of isolcpus= > that doesn't involve scheduler domain isolation. Therefore this > brings a behaviour change: all user tasks inherit init/1 affinity which > avoid the isolcpus= range. But if a task later overrides its affinity > which turns out to intersect an isolated CPU, load balancing may occur > on it.
I think that change is good maybe even a bugfix. I had some people be very surprised when they set affinities to multiple cpus and the processeds kept sticking to one cpu because of isolcpus.
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