Messages in this thread | | | Date | Fri, 2 Dec 2011 14:22:54 -0600 | From | Dimitri Sivanich <> | Subject | Re: [PATCH] specific do_timer_cpu value for nohz off mode |
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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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