On Wed, May 4, 2016 at 2:31 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Andres Freund <andres@anarazel.de> writes:
>> Given that poll() has been introduced in SRV3 - which IIRC was below our
>> usual baseline - and windows is not an issue for latch, I think it'd
>> be ok to rely on it.
>
> I think it's entirely reasonable to say that "if you want high performance
> you should have poll(3)". Failing to build without it would be a harder
> sell, probably.
There are some decent cross platform libraries that expose high
performance polling. In particular, libev.
http://software.schmorp.de/pkg/libev.html. I would definitely look
there before contemplating direct epoll calls. (note, aside from
seeing epoll, I haven't been following this thread in detail).
merlin