Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 8 Feb 2001 10:56:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 8 Feb 2001 10:56:15 -0500 Received: from perninha.conectiva.com.br ([200.250.58.156]:13585 "EHLO perninha.conectiva.com.br") by vger.kernel.org with ESMTP id ; Thu, 8 Feb 2001 10:56:00 -0500 Date: Thu, 8 Feb 2001 12:05:38 -0200 (BRST) From: Marcelo Tosatti To: Mikulas Patocka cc: "Stephen C. Tweedie" , Pavel Machek , Linus Torvalds , Jens Axboe , Manfred Spraul , Ben LaHaise , Ingo Molnar , Alan Cox , Steve Lord , Linux Kernel List , kiobuf-io-devel@lists.sourceforge.net, Ingo Molnar Subject: Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 8 Feb 2001, Mikulas Patocka wrote: > > > > 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 point is that you want to be able to not block if the queue full (and the queue size has nothing to do with that). > The problem is that aio_read and aio_write are pretty useless for ftp or > http server. You need aio_open. Could you explain this? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/