On Mon, 2018-03-12 at 10:20 -0400, Waiman Long wrote:
> On 03/10/2018 08:16 AM, Peter Zijlstra wrote:
>
> > The equivalent of isolcpus=xxx is a cgroup setup like:
> >
> > root
> > / \
> > system other
> >
> > Where other has the @xxx cpus and system the remainder and
> > root.sched_load_balance = 0.
>
> I saw in the kernel-parameters.txt file that the isolcpus option was
> deprecated - use cpusets instead. However, there doesn't seem to have
> document on the right way to do it.
I use cset shield (cpuset package) in a script to create a set and
migrate everything that's permitted into the system set.
setup:
cset shield --userset=rtcpus --cpu=4-63 --kthread=on
<poke this/that>
teardown:
cset shield --userset=rtcpus --reset
<un-poke this/that>
Non-sexy, but works for simple stuff.
-Mike
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