Re: [PATCH] nohz1: Documentation

From: Christoph Lameter
Date: Thu Mar 21 2013 - 15:03:25 EST

On Thu, 21 Mar 2013, Steven Rostedt wrote:

> For now, no, if more than one process is scheduled on the CPU, we fall
> out of dynamic tick mode. In the future, we can add SCHED_FIFO task
> scheduled in to trigger it. But lets conquer that after we successfully
> conquer the current changes.

Be glad to see whatever is possible merged as soon as possible. But be
aware that we will fall out of dyntick mode at mininum every 2 seconds
because that is when the per cpu vm stats and the slab scanning is
occurring. These are both deferrable activities.

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