Re: [patch 0/5] Nano/Microsecond resolution for select() and poll()

Brian Wellington
2008-08-29T22:24:14Z

On Fri, 29 Aug 2008, Arjan van de Ven wrote:

> Today in Linux, select() and poll() operate in jiffies resolution
> (granularity), meaning an effective resolution of 1 millisecond (HZ=1000) to
> 10 milliseconds (HZ=100). Delays shorter than this are not possible, and all
> delays are in multiples of this granularity.

Would a similar change also be useful for epoll_wait()? It's unfortunate
that there's no way to use epoll with more than millisecond granularity,
but it seems like the same arguments could be made as with poll().

Brian