Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751904AbXE3Hdj (ORCPT ); Wed, 30 May 2007 03:33:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751230AbXE3Hdb (ORCPT ); Wed, 30 May 2007 03:33:31 -0400 Received: from mx1.redhat.com ([66.187.233.31]:59845 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750978AbXE3Hda (ORCPT ); Wed, 30 May 2007 03:33:30 -0400 Message-ID: <465D286E.2080807@redhat.com> Date: Wed, 30 May 2007 00:31:58 -0700 From: Ulrich Drepper Organization: Red Hat, Inc. User-Agent: Thunderbird 2.0.0.0 (X11/20070419) MIME-Version: 1.0 To: Ingo Molnar CC: Jeff Garzik , Zach Brown , linux-kernel@vger.kernel.org, Linus Torvalds , Arjan van de Ven , Christoph Hellwig , Andrew Morton , Alan Cox , Evgeniy Polyakov , "David S. Miller" , Suparna Bhattacharya , Davide Libenzi , Jens Axboe , Thomas Gleixner Subject: Re: Syslets, Threadlets, generic AIO support, v6 References: <20070529212718.GH7875@mami.zabbo.net> <465CA654.5000505@garzik.org> <20070530072055.GA3077@elte.hu> In-Reply-To: <20070530072055.GA3077@elte.hu> X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1053 Lines: 27 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ingo Molnar wrote: > 3 months ago i verified the published kevent vs. epoll benchmark and > found that benchmark to be fatally flawed. When i redid it properly > kevent showed no significant advantage over epoll. I'm not going to judge your tests but saying there are no significant advantages is too one-sided. There is one huge advantage: the interface. A memory-based interface is simply the best form. File descriptors are a resource the runtime cannot transparently consume. - -- ➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) iD8DBQFGXShu2ijCOnn/RHQRAi5ZAJ920rRneulUMjTETu6XoiOaOi7SLgCfbmO+ UDM1CLqbaEZREAMnuOWRzuY= =CERV -----END PGP SIGNATURE----- - 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/