回复: Question on workqueue: Manually break affinity on hotplug

2021-01-17 Thread Zhang, Qiang
uestion on workqueue: Manually break affinity on hotplug [Please note this e-mail is from an EXTERNAL e-mail address] On Thu, Jan 14, 2021 at 08:03:23AM +, Zhang, Qiang wrote: > Hello Peter > > Excuse me, I have some questions for you, about a description of this change: > > '&

Re: Question on workqueue: Manually break affinity on hotplug

2021-01-14 Thread Peter Zijlstra
On Thu, Jan 14, 2021 at 08:03:23AM +, Zhang, Qiang wrote: > Hello Peter > > Excuse me, I have some questions for you, about a description of this change: > > ''Don't rely on the scheduler to force break affinity for us -- it will > stop doing that for per-cpu-kthreads." > > this mean when cp

Question on workqueue: Manually break affinity on hotplug

2021-01-14 Thread Zhang, Qiang
Hello Peter Excuse me, I have some questions for you, about a description of this change: ''Don't rely on the scheduler to force break affinity for us -- it will stop doing that for per-cpu-kthreads." this mean when cpuhotplug, scheduler do not change affinity for per-cpu-kthread's task, if w