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Date: Thu, 8 Feb 2001 16:46:12 +0100 (CET)
From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
cc: "Stephen C. Tweedie" <sct@redhat.com>, Pavel Machek <pavel@suse.cz>,
        Linus Torvalds <torvalds@transmeta.com>, Jens Axboe <axboe@suse.de>,
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        Linux Kernel List <linux-kernel@vger.kernel.org>,
        kiobuf-io-devel@lists.sourceforge.net, Ingo Molnar <mingo@redhat.com>
Subject: Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait
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> > > How do you write high-performance ftp server without threads if select
> > > on regular file always returns "ready"?
> > 
> > Select can work if the access is sequential, but async IO is a more
> > general solution.
> 
> Even async IO (ie aio_read/aio_write) should block on the request queue if
> its full in Linus mind.

This is not problem (you can create queue big enough to handle the load).

The problem is that aio_read and aio_write are pretty useless for ftp or
http server. You need aio_open.

Mikulas

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