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Subject: Re: [PATCH] async poll for 2.5
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: John Gardiner Myers <jgmyers@netscape.com>
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On Wed, 2002-10-16 at 19:29, John Gardiner Myers wrote:
> Better to fix the API.  The kernel has more information than user space 
> and can do a better job.  In the kernel, the problem can be fixed once 
> and for all, not over and over again in each different wrapper library. 
>  It's not even as if the change would break programs correctly written 
> to the old API, not that we particularly care about programs written to 
> the old API.

I think a chunk of the poll scaling problem is better addressed by
futexes. If I can say "this futex list for this fd for events X Y and Z"
I can construct almost all the efficient stuff I need out of the futex
interfaces, much like doing it with SIGIO setting flags but a lot less
clocks

Alan
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