Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030391AbXBZSTy (ORCPT ); Mon, 26 Feb 2007 13:19:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030397AbXBZSTy (ORCPT ); Mon, 26 Feb 2007 13:19:54 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:43406 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030391AbXBZSTx (ORCPT ); Mon, 26 Feb 2007 13:19:53 -0500 Subject: Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3 From: Arjan van de Ven To: Evgeniy Polyakov Cc: Ingo Molnar , Linus Torvalds , Ulrich Drepper , linux-kernel@vger.kernel.org, Christoph Hellwig , Andrew Morton , Alan Cox , Zach Brown , "David S. Miller" , Suparna Bhattacharya , Davide Libenzi , Jens Axboe , Thomas Gleixner In-Reply-To: <20070226173701.GD22454@2ka.mipt.ru> References: <20070221211355.GA7302@elte.hu> <20070221233111.GB5895@elte.hu> <45DCD9E5.2010106@redhat.com> <20070222074044.GA4158@elte.hu> <20070222113148.GA3781@2ka.mipt.ru> <20070226131133.GA11777@elte.hu> <20070226173701.GD22454@2ka.mipt.ru> Content-Type: text/plain Organization: Intel International BV Date: Mon, 26 Feb 2007 10:19:03 -0800 Message-Id: <1172513950.3280.388.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.8.3 (2.8.3-1.fc6) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 862 Lines: 21 On Mon, 2007-02-26 at 20:37 +0300, Evgeniy Polyakov wrote: > I tend to agree. > Yes, some loads require event driven model, other can be done using > threads. event driven model is really complex though. For event driven to work well you basically can't tolerate blocking calls at all ... open() blocks on files. read() may block on metadata reads (say indirect blockgroups) not just on datareads etc etc. It gets really hairy really quick that way. -- if you want to mail me at work (you don't), use arjan (at) linux.intel.com Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/