Re: [patch V2 00/20] timer: Refactor the timer wheel

From: Thomas Gleixner
Date: Mon Jun 20 2016 - 10:49:08 EST


On Mon, 20 Jun 2016, Arjan van de Ven wrote:
> On Mon, Jun 20, 2016 at 6:56 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> >
> > 2) Cut off at 37hrs for HZ=1000. We could make this configurable as a 1000HZ
> > option so datacenter folks can use this and people who don't care and want
> > better batching for power can use the 4ms thingy.
>
>
> if there really is one user of such long timers... could we possibly
> make that one robust against early fire of the timer?
>
> eg rule is: if you set timers > 37 hours, you need to cope with early timer fire

The only user I found is networking contrack (5 days). Eric thought its not a
big problem if it fires earlier.

Thanks,

tglx