From owner-freebsd-current@FreeBSD.ORG Tue Nov 6 12:30:51 2012 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 70A1884D for ; Tue, 6 Nov 2012 12:30:51 +0000 (UTC) (envelope-from break19@gmail.com) Received: from mail-gg0-f182.google.com (mail-gg0-f182.google.com [209.85.161.182]) by mx1.freebsd.org (Postfix) with ESMTP id 22F498FC0A for ; Tue, 6 Nov 2012 12:30:50 +0000 (UTC) Received: by mail-gg0-f182.google.com with SMTP id l1so43448ggn.13 for ; Tue, 06 Nov 2012 04:30:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:subject:date:message-id:user-agent:in-reply-to:references :mime-version:content-transfer-encoding:content-type; bh=7GdkfItC9t/+lTTqVgy1+86OaJKpSnSq8wiWn79Be1k=; b=feUKErGgizOKFBReywz1sACKY6TPtKVXEotGBgCTep0fjdowPTV6v3c7IQnbBquE7x FZQIeJRd8gNCml15rZAUv1ELpTwgZcPv/ciZe3zri6eKx1A7qXXzSffnMh+zZEx1PhMx QjHWPbg/l8tGqUsl+02t+EiM4aobGSL52OTHMEKzvndhcEhUaAb7JH0v7VvGC4vmN0Ou GcJpCJ8/7bxfCnbMjZFBOsMI3+EeRexr9sdvMjU8Iz16WHbEOudgkLAmWKtPtQodVeEI kfbc7jcPu5NGWljd6drVwfiqkdXrm8UC9vtp/x8EphMtyYpGSQ8DXch5scsWf64de9Sf Bu6Q== Received: by 10.236.155.10 with SMTP id i10mr741511yhk.91.1352205049292; Tue, 06 Nov 2012 04:30:49 -0800 (PST) Received: from blackbeast.local (173-17-34-224.client.mchsi.com. [173.17.34.224]) by mx.google.com with ESMTPS id g7sm16422048ani.2.2012.11.06.04.30.48 (version=SSLv3 cipher=OTHER); Tue, 06 Nov 2012 04:30:48 -0800 (PST) From: Chuck Burns To: freebsd-current@freebsd.org Subject: Re: polling's future [was: Re: Dynamic Ticks/HZ] Date: Tue, 06 Nov 2012 06:31:48 -0600 Message-ID: <32992731.3rb8pPz1Mv@blackbeast.local> User-Agent: KMail/4.8.4 (FreeBSD/9.1-RC3; KDE/4.8.4; amd64; ; ) In-Reply-To: <5098F64E.1070704@freebsd.org> References: <509758B8.1000409@rewt.org.uk> <20121106113014.GA26313@onelab2.iet.unipi.it> <5098F64E.1070704@freebsd.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Nov 2012 12:30:51 -0000 On Tuesday, November 06, 2012 12:36:46 PM Andre Oppermann wrote: > On 06.11.2012 12:30, Luigi Rizzo wrote: > > On Tue, Nov 06, 2012 at 11:23:34AM +0100, Andre Oppermann wrote: > > ... > > > >> Hi Luigi, > >> > >> do you agree on polling having outlived its usefulness in the light > >> of interrupt moderating NIC's and SMP complications/disadvantages? > > > > yes, we should let it rest in peace. > > Thank you for this non-complicated answer. :-) > I worry about what happens for those people who would be running FreeBSD on older equipment where polling might still make sense. Do we throw them under the bus? -- Chuck Burns