Re: [tip:sched/core] sched/isolation: Document the isolcpus= flags

[Frederic Weisbecker]

2017-10-27 15:58 UTC+02:00, Peter Zijlstra <peterz@xxxxxxxxxxxxx>:
> On Fri, Oct 27, 2017 at 05:06:25AM -0700, tip-bot for Frederic Weisbecker
> wrote:
>> +	isolcpus=	[KNL,SMP] Isolate a given set of CPUs from disturbance.
>> +			Format: [flag-list,]<cpu-list>
>> +
>> +			Specify one or more CPUs to isolate from disturbances
>> +			specified in the flag list (default: domain):
>> +
>> +			nohz
>> +			  Disable the tick when a single task runs.
>> +			domain
>> +			  Isolate from the general SMP balancing and scheduling
>> +			  algorithms. This option is the preferred way to isolate
>> +			  CPUs from tasks.
>
> I _strongly_ object to this statement, isolcpus is _not_ the preferred
> way, cpusets are.
>
> And yes, while cpusets suffers some problems, we _should_ really fix
> those and not promote this piece of shit isolcpus crap.

I definitely agree with that so your position is a relief :-) This
patch only indented the existing parameter documentation so fixing its
content was beyond its scope. I'll send a patch to correct the text.

Thanks.