Re: [LNG] Re: [Query] Ticks happen in pair for NO_HZ_FULL cores ?

[Viresh Kumar]

On 18 December 2013 19:21, Kevin Hilman <khilman@xxxxxxxxxx> wrote:
> Ah, I see.  So you're basically asking why we can't evaluate whether to
> turn off the tick more often, for example right after the workqueues are
> done.  I suppose Frederic may have some views on that, but there's
> likely additional overhead from those checks as well as that workqueues
> may not be the only thing keeping us out of NO_HZ.

I see that sched_switch is called at the end most of the times so an check
there might be useful ?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/