Re: [PATCH] nohz1: Documentation

[Frederic Weisbecker]

2013/3/21 Christoph Lameter <cl@xxxxxxxxx>:
> On Thu, 21 Mar 2013, Frederic Weisbecker wrote:
>
>> Sure, for now just don't use SCHED_FIFO and you will have a much more
>> extended dynticks coverage.
>
> Ah. Ok. Important information. That would mean no tick for the 2 second
> intervals between the vm stats etc. Much much better than now where we
> have a tick 1000 times per second.

I can't guarantee no tick, there can be many reasons for the tick to
happen. But if you don't run SCHED_FIFO, the pending kernel thread can
execute quickly and give back the CPU for your task alone, then the
tick can shut down again.
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