Re: epoll (was Re: [PATCH] async poll for 2.5)

[Davide Libenzi]

On Tue, 22 Oct 2002, Benjamin LaHaise wrote:

> On Tue, Oct 22, 2002 at 11:18:20AM -0700, Davide Libenzi wrote:
> > Alan, could you provide a code snipped to show how easy it is and how well
> > it fits a 1:N ( one task/thread , N connections ) architecture ? And
> > looking at Ben's presentation about benchmarks ( and for pipe's ), you'll
> > discover that both poll() and AIO are "a little bit slower" than
> > sys_epoll. Anyway I do not want anything superflous added to the kernel
> > w/out reason, that's why, beside the Ben's presentation, there're curretly
> > people benchmarking existing solutions.
>
> That's why I was hoping async poll would get fixed to have the same
> performance characteristics as /dev/epoll.  But.... :-/

Yep, like I wrote you yesterday ( and you did not answer ) is that I was
trying to add supprt for AIO into the test HTTP server I use to do
benchmark tests ( http://www.xmailserver.org/linux-patches/ephttpd-0.1.tar.gz )
but since there's no support for AIO POLL, it is impossible ( at least to
my knowledge ) to compare sys_epoll and AIO on a "real HTTP load"
networking test.

- Davide