Re: [PATCH 2/4] timer: relax tick stop in idle entry

From: Paul E. McKenney
Date: Tue Nov 17 2015 - 00:03:57 EST

On Mon, Nov 16, 2015 at 06:57:14PM -0800, Arjan van de Ven wrote:
> On 11/16/2015 6:53 PM, Paul E. McKenney wrote:
> >Fair point. When in the five-jiffy throttling state, what can wake up
> >a CPU? In an earlier version of this proposal, the answer was "nothing",
> >but maybe that has changed.
> device interrupts are likely to wake the cpus.

OK, that I cannot help you with. But presumably if the interrupt handler
does a wakeup (or similar), that is deferred to the end of the throttling
interval? Timers are also deferred, including hrtimers?

Thanx, Paul

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at