Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 8 Feb 2001 14:56:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 8 Feb 2001 14:56:14 -0500 Received: from zeus.kernel.org ([209.10.41.242]:37075 "EHLO zeus.kernel.org") by vger.kernel.org with ESMTP id ; Thu, 8 Feb 2001 14:56:08 -0500 Date: Thu, 8 Feb 2001 19:50:32 +0000 From: "Stephen C. Tweedie" To: Mikulas Patocka Cc: Pavel Machek , Linus Torvalds , Jens Axboe , Marcelo Tosatti , Manfred Spraul , Ben LaHaise , Ingo Molnar , "Stephen C. Tweedie" , 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 Message-ID: <20010208195032.H9130@redhat.com> In-Reply-To: <20010208001513.B189@bug.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: ; from mikulas@artax.karlin.mff.cuni.cz on Thu, Feb 08, 2001 at 03:52:35PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Thu, Feb 08, 2001 at 03:52:35PM +0100, Mikulas Patocka wrote: > > > How do you write high-performance ftp server without threads if select > > on regular file always returns "ready"? > > No, it's not really possible on Linux. Use SYS$QIO call on VMS :-) Ahh, but even VMS SYS$QIO is synchronous at doing opens, allocation of the IO request packets, and mapping file location to disk blocks. Only the data IO is ever async (and Ben's async IO stuff for Linux provides that too). --Stephen - 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/