Messages in this thread | | | Date | Thu, 21 Mar 2013 22:06:33 +0100 | Subject | Re: [PATCH] nohz1: Documentation | From | Frederic Weisbecker <> |
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2013/3/21 Christoph Lameter <cl@linux.com>: > 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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