From owner-freebsd-current@FreeBSD.ORG Mon Dec 5 23:39:18 2011 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AF3B5106564A for ; Mon, 5 Dec 2011 23:39:18 +0000 (UTC) (envelope-from jfvogel@gmail.com) Received: from mail-vw0-f54.google.com (mail-vw0-f54.google.com [209.85.212.54]) by mx1.freebsd.org (Postfix) with ESMTP id 669798FC0A for ; Mon, 5 Dec 2011 23:39:18 +0000 (UTC) Received: by vbbfr13 with SMTP id fr13so7026967vbb.13 for ; Mon, 05 Dec 2011 15:39:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=szAWm4Jgua4tczI/FOExzBn/SooBDPZn/XChmyNWHAg=; b=PXv3C1aUdp0FhcC0j9IVa2y+ImV2cvhdmNS2JE3WFTCdKommh6Ust6CvvZzuRkgoLG SnOzJhC43h4evF4X0S/pTQQWj1aw7TVAgfz5P5eTJ5qavDJNUFEVBAS3iNduw8XV5cj2 +AXrVQWTnlpyBhtzcy9qdsOPYJAnsSBZJzprM= MIME-Version: 1.0 Received: by 10.52.99.161 with SMTP id er1mr6340456vdb.50.1323126534436; Mon, 05 Dec 2011 15:08:54 -0800 (PST) Received: by 10.220.224.197 with HTTP; Mon, 5 Dec 2011 15:08:54 -0800 (PST) In-Reply-To: <20111205222834.GA50285@onelab2.iet.unipi.it> References: <20111205192703.GA49118@onelab2.iet.unipi.it> <2D87D847-A2B7-4E77-B6C1-61D73C9F582F@digsys.bg> <20111205222834.GA50285@onelab2.iet.unipi.it> Date: Mon, 5 Dec 2011 15:08:54 -0800 Message-ID: From: Jack Vogel To: Luigi Rizzo Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: current@freebsd.org, Daniel Kalchev Subject: Re: datapoints on 10G throughput with TCP ? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Mon, 05 Dec 2011 23:39:18 -0000 You can't get line rate with ixgbe, in what configuration/hardware? We surely do get line rate in validation here, but its sensitive to your hardware and config. Jack On Mon, Dec 5, 2011 at 2:28 PM, Luigi Rizzo wrote: > On Mon, Dec 05, 2011 at 11:15:09PM +0200, Daniel Kalchev wrote: > > > > On Dec 5, 2011, at 9:27 PM, Luigi Rizzo wrote: > > > > > - have two machines connected by a 10G link > > > - on one run "nuttcp -S" > > > - on the other one run "nuttcp -t -T 5 -w 128 -v the.other.ip" > > > > > > > Any particular tuning of FreeBSD? > > actually my point is first to see how good or bad are the defaults. > > I have noticed that setting hw.ixgbe.max_interrupt_rate=0 > (it is a tunable, you need to do it before loading the module) > improves the throughput by a fair amount (but still way below > line rate with 1500 byte packets). > > other things (larger windows) don't seem to help much. > > cheers > luigi > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >