Re: [PATCH] async poll for 2.5

[Dan Kegel]

Benjamin LaHaise wrote:
> 
> On Mon, Oct 14, 2002 at 06:36:45PM -0400, Shailabh Nagar wrote:
> > As of today, there is no scalable alternative to poll/select in the 2.5
> > kernel even though the topic has been discussed a number of times
> > before. The case for a scalable poll has been made often so I won't
> > get into that.
> 
> Have you bothered addressing the fact that async poll scales worse than
> /dev/epoll?  That was the original reason for dropping it.

Doesn't the F_SETSIG/F_SETOWN/SIGIO stuff qualify as a scalable
alternative?
It's in 2.5 as far as I know.   It does suffer from using the signal
queue,
but it's in production use on servers that handle many thousands of 
concurrent connections, so it's pretty scalable.

- Dan