Re: [PATCH] affine kernel threads to specified cpumask

[Thomas Gleixner]

Marcelo,
Marcelo Tosatti <mtosatti@xxxxxxxxxx> writes:

the subject lacks a prefix and the CC list a few people.

> This is a kernel enhancement to configure the cpu affinity of kernel
> threads via kernel boot option kthread_cpus=<cpulist>.
>
> With kthread_cpus specified, the cpumask is immediately applied upon
> thread launch. This does not affect kernel threads that specify cpu
> and node.
>
> This allows CPU isolation (that is not allowing certain threads
> to execute on certain CPUs) without using the isolcpus= parameter,
> making it possible to enable load balancing on such CPUs 
> during runtime.

I'm surely missing some background information, but that sentence does
not make any sense to me.

Thanks,

        tglx