From owner-freebsd-net@FreeBSD.ORG Thu Apr 19 19:59:40 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6D30B106564A; Thu, 19 Apr 2012 19:59:40 +0000 (UTC) (envelope-from jfvogel@gmail.com) Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by mx1.freebsd.org (Postfix) with ESMTP id C5CE88FC16; Thu, 19 Apr 2012 19:59:39 +0000 (UTC) Received: by wibhj6 with SMTP id hj6so1714251wib.13 for ; Thu, 19 Apr 2012 12:59:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=AVPhqRJhEhp4bzxjpG7YIiUPupeP50EjvazklSe6GDc=; b=TMoMgyFjUEOP4HC9noQyPcSJJYZfmTiJwQn9OdTXB4HDHTls6dh2K55eSKXh1NH8Ig Wk+TCJk2psggBOb78QHoIyBEEvwl2p6T01/PynsmDiZvH1OUUWxNyGh5gcUITpCVovCg vCpvnYousTeRw5NM/QdJIJZdwB+B2L0VHv8hFLZRCX4Z1jRIcqZeA0uz4WdkkzjttG19 6cBatmXsUXZSvoGQ9m7TiZThFwGjicxw5CHOzIpaRLb+rQqLR2z0vphY+O4eYIXi8QXz 7b46ecxK7YQAjXN0fWLPVZcuVt4J4gVXWj7pkGbaHjyILV6gSHmETCRHCH7cDQyogGgE 0+/g== MIME-Version: 1.0 Received: by 10.180.89.9 with SMTP id bk9mr8334810wib.11.1334865578693; Thu, 19 Apr 2012 12:59:38 -0700 (PDT) Received: by 10.180.3.170 with HTTP; Thu, 19 Apr 2012 12:59:38 -0700 (PDT) In-Reply-To: <1334863602.4126.9.camel@powernoodle-l7.corp.yahoo.com> References: <1334705064.4486.23.camel@powernoodle-l7.corp.yahoo.com> <1334767746.3466.6.camel@powernoodle-l7.corp.yahoo.com> <1334792417.19343.11.camel@powernoodle-l7.corp.yahoo.com> <201204190822.31010.jhb@freebsd.org> <1334863602.4126.9.camel@powernoodle-l7.corp.yahoo.com> Date: Thu, 19 Apr 2012 12:59:38 -0700 Message-ID: From: Jack Vogel To: Sean Bruno Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: "freebsd-net@freebsd.org" , Luigi Rizzo , John Baldwin Subject: Re: igb(4) Raising IGB_MAX_RXD ?? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Apr 2012 19:59:40 -0000 On Thu, Apr 19, 2012 at 12:26 PM, Sean Bruno wrote: > On Thu, 2012-04-19 at 07:09 -0700, Jack Vogel wrote: > > OH, well that's interesting to know, thanks John. > > > > Jack > > > > > Front end box looks pretty happy today at 8k descriptors. > > http://people.freebsd.org/~sbruno/igb_8k_stats.txt > > Under peak, we're approaching 20MBytes/sec in and out of the > interface. :-) Nifty. > > -bash-4.2$ netstat 1 > input (Total) output > packets errs idrops bytes packets errs bytes colls > 59542 0 0 18189602 59131 0 19884085 0 > 58941 0 0 18036651 58673 0 19702671 0 > 58790 0 0 18069235 58422 0 19897858 0 > 58226 0 0 17948175 57969 0 19648810 0 > 58689 0 0 18167855 58479 0 19909843 0 > 58633 0 0 17952951 58437 0 19760197 0 > 61019 0 0 18779030 60592 0 20394481 0 > 56696 0 0 17647407 56552 0 19261155 0 > 58853 0 0 18186019 58530 0 19886197 0 > 58739 0 0 18314790 58768 0 20165654 0 > 58748 0 0 18267243 58539 0 20016668 0 > 58672 0 0 17914657 58378 0 19558833 0 > 59885 0 0 18332641 59780 0 20239241 0 > > > We're going to crank one server up to 8 igb queues and > hw.igb.max_rxd/txd to 32k and see what blows up. > > Sean > > > Great, look forward to the results. Thanks Sean. Jack