Messages in this thread | | | From | Lai Jiangshan <> | Date | Tue, 15 Dec 2020 16:14:26 +0800 | Subject | Re: [PATCH 00/10] workqueue: break affinity initiatively |
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On Tue, Dec 15, 2020 at 3:50 PM Peter Zijlstra <peterz@infradead.org> wrote: > > On Tue, Dec 15, 2020 at 01:44:53PM +0800, Lai Jiangshan wrote: > > I don't know how the scheduler distinguishes all these > > different cases under the "new assumption". > > The special case is: > > (p->flags & PF_KTHREAD) && p->nr_cpus_allowed == 1 > >
So unbound per-node workers can possibly match this test. So there is code needed to handle for unbound workers/pools which is done by this patchset.
Is this the code of is_per_cpu_kthread()? I think I should have also used this function in workqueue and don't break affinity for unbound workers have more than 1 cpu.
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