From owner-freebsd-stable@freebsd.org Mon Aug 17 07:33:29 2015 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9A3769BA9EA; Mon, 17 Aug 2015 07:33:29 +0000 (UTC) (envelope-from danny@cs.huji.ac.il) Received: from kabab.cs.huji.ac.il (kabab.cs.huji.ac.il [132.65.116.210]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 54ACA1131; Mon, 17 Aug 2015 07:33:28 +0000 (UTC) (envelope-from danny@cs.huji.ac.il) Received: from mbpro-w.cs.huji.ac.il ([132.65.80.91]) by kabab.cs.huji.ac.il with esmtp id 1ZREpZ-000LVA-N9; Mon, 17 Aug 2015 10:27:41 +0300 From: Daniel Braniss Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: ix(intel) vs mlxen(mellanox) 10Gb performance Date: Mon, 17 Aug 2015 10:27:41 +0300 Message-Id: <1D52028A-B39F-4F9B-BD38-CB1D73BF5D56@cs.huji.ac.il> Cc: FreeBSD Net To: FreeBSD stable Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2102\)) X-Mailer: Apple Mail (2.2102) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2015 07:33:29 -0000 hi, I have a host (Dell R730) with both cards, connected to an = HP8200 switch at 10Gb. when writing to the same storage (netapp) this is what I get: ix0: ~130MGB/s mlxen0 ~330MGB/s this is via nfs/tcpv3 I can get similar (bad) performance with the mellanox if I = increase the file size to 512MGB. so at face value, it seems the mlxen does a better use of = resources than the intel. Any ideas how to improve ix/intel=E2=80=99s performance? cheers, dnny