Re: [PATCH] specific do_timer_cpu value for nohz off mode

[Dimitri Sivanich]

On Fri, Dec 02, 2011 at 02:14:52PM -0600, Dimitri Sivanich wrote:
> So at that time, we could be off +- almost a tick.  The question is, how
> critical is that?  When you down a cpu, the same sort of thing could 
> happen via tick_handover_do_timer(), which itself does nothing more than
> change tick_do_timer_cpu.

I should clarify that by 'same sort of thing' I mean that the target cpu
might've just gone through tick_periodic(), so we could miss a tick before
the next update.
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