Re: [RFC,PATCH] use rcu for fasync_lock

Ingo Oeser
2004-01-05T21:19:13Z

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Hi Davide,
hi lkml,

On Sunday 04 January 2004 20:20, you wrote:
> The problem with poll/select is not the Linux implementation. It is the
> API that is flawed when applied to large fd sets. Every call pass to the
> system the whole fd set, and this makes the API O(N) by definition. While
> poll/select are perfectly ok for small fd sets, epoll LT might enable the
> application to migrate from poll/select to epoll pretty quickly (if the
> application architecture is fairly sane). For example, it took about 15
> minutes to me to make an epoll'd thttpd.

Yes, I've read your analysis several years ago already and I'm the first
one lobbying for epoll, but look at the posting stating, that INN sucks
under Linux currently, but doesn't suck that hard under FreeBSD and
Solaris.

There are already enough things you cannot do properly under Linux
(which are mostly not Linux' fault, but still), so I don't want to add
another one. Especially in the server market, where the M$ lobbyists are
growing their market share.

But if there is some minimal funding available (50 EUR?), I would do it
myself and push the patches upstream ;-)

Regards

Ingo Oeser

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