Messages in this thread | | | Subject | Re: [PATCH v2] isolcpus: affine kernel threads to specified cpumask | From | Chris Friesen <> | Date | Thu, 26 Mar 2020 10:32:51 -0600 |
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On 3/26/2020 10:22 AM, Frederic Weisbecker wrote: > On Wed, Mar 25, 2020 at 06:05:27PM +0000, David Laight wrote:
>> How about making it possible to change the default affinity >> for new kthreads at run time? >> Is it possible to change the affinity of existing threads? >> Or maybe only those that didn't specify an explicit one?? > > That's already possible yes, most unbound kthreads are accessible > through /proc including kthreadd from which new kthread will inherit > their CPU affinity.
Are you sure that the new kthread will inherit the CPU affinity?
__kthread_create_on_node() explicitly sets the new thread as SCHED_NORMAL with a mask of "cpu_all_mask".
Chris
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