Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752715AbXE3H0s (ORCPT ); Wed, 30 May 2007 03:26:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751346AbXE3H0m (ORCPT ); Wed, 30 May 2007 03:26:42 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:52031 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751335AbXE3H0l (ORCPT ); Wed, 30 May 2007 03:26:41 -0400 Date: Wed, 30 May 2007 09:26:17 +0200 From: Ingo Molnar To: Zach Brown Cc: Jeff Garzik , linux-kernel@vger.kernel.org, Linus Torvalds , Arjan van de Ven , Christoph Hellwig , Andrew Morton , Alan Cox , Ulrich Drepper , Evgeniy Polyakov , "David S. Miller" , Suparna Bhattacharya , Davide Libenzi , Jens Axboe , Thomas Gleixner Subject: Re: Syslets, Threadlets, generic AIO support, v6 Message-ID: <20070530072617.GB3077@elte.hu> References: <20070529212718.GH7875@mami.zabbo.net> <465CA654.5000505@garzik.org> <20070529230931.GL7875@mami.zabbo.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070529230931.GL7875@mami.zabbo.net> User-Agent: Mutt/1.4.2.2i X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.0.3 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 836 Lines: 21 * Zach Brown wrote: > > Having async request and response rings would be quite useful, and > > most closely match what is going on under the hood in the kernel and > > hardware. > > Yeah, but I have lots of competing thoughts about this. note that async request and response rings are implemented already in essence: that's how FIO uses syslets. The linked list of syslet atoms is the 'request ring' (it's just that 'ring' is not a hard-enforced data structure - you can use other request formats too), and the completion ring is the 'response ring'. Ingo - 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/