From owner-freebsd-net@freebsd.org Mon Jun 29 12:55:51 2015 Return-Path: Delivered-To: freebsd-net@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 5104A98F2EB for ; Mon, 29 Jun 2015 12:55:51 +0000 (UTC) (envelope-from cochard@gmail.com) Received: from mail-la0-x230.google.com (mail-la0-x230.google.com [IPv6:2a00:1450:4010:c03::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C0E1F1D45 for ; Mon, 29 Jun 2015 12:55:50 +0000 (UTC) (envelope-from cochard@gmail.com) Received: by lagc2 with SMTP id c2so8624648lag.3 for ; Mon, 29 Jun 2015 05:55:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc:content-type; bh=qlsJNuQ/p57O+iFyWRqAFVKFMyP1QZ8tB+7OReWnUwM=; b=BkR7iUFNth/yGxgUVXgZqiA0oXsdLtTtUzgnQFJHshz7pVCWiBpYbaSiINuEDoFZrn 7VvXMnJVwi/DLjz6J+QkjZakBni/JjYeZsRw3B2vAtbM7LcRNM4NbomUwRIIMAFy6eHm YTXVqP2GiZFHS9b8UgEK/ATLMsE65N8l/2QQwi4xtjDTQeVmxMJTfUJqYcqz4cdcRSrp piEy/tA2ximF14apVv5k6ZQkSiNUn453MIQHsaT/nirP5Dn8v23QixnYBVZfh/nqEb5V oYkNvorVYlUmLMtJUA6AV9hApuov7nrJq+0G9k5NCvUEe9x9SheYkIHNDEgLjIl8wPRT lF0g== X-Received: by 10.112.155.103 with SMTP id vv7mr13824641lbb.75.1435582548595; Mon, 29 Jun 2015 05:55:48 -0700 (PDT) MIME-Version: 1.0 Sender: cochard@gmail.com Received: by 10.152.135.173 with HTTP; Mon, 29 Jun 2015 05:55:29 -0700 (PDT) In-Reply-To: <20150629091958.af9720d478a8903ab28adc1d@aei.mpg.de> References: <20150625145238.12cf9da3b368ef0b9a30f193@aei.mpg.de> <1629011632.413406.1435365728977.JavaMail.zimbra@uoguelph.ca> <20150629091958.af9720d478a8903ab28adc1d@aei.mpg.de> From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= Date: Mon, 29 Jun 2015 14:55:29 +0200 X-Google-Sender-Auth: l7n6lKyGu__Kw9MAFtUqgUx0MR0 Message-ID: Subject: Re: NFS on 10G interface terribly slow To: =?UTF-8?B?R2Vycml0IEvDvGhu?= Cc: Rick Macklem , "freebsd-net@freebsd.org" , Scott Larson , carsten aulbert Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Jun 2015 12:55:51 -0000 On Mon, Jun 29, 2015 at 9:19 AM, Gerrit K=C3=BChn wrote: > On Fri, 26 Jun 2015 20:42:08 -0400 (EDT) Rick Macklem > wrote about Re: NFS on 10G interface terribly slow= : > > RM> Btw, can you tell us what Intel chip(s) you're using? > > I have > > ix0@pci0:5:0:0: class=3D0x020000 card=3D0x00028086 chip=3D0x15288086 rev= =3D0x01 > hdr=3D0x00 vendor =3D 'Intel Corporation' > device =3D 'Ethernet Controller 10-Gigabit X540-AT2' > class =3D network > subclass =3D ethernet > > RM> For example, from the "ix" driver: > RM> #define IXGBE_82598_SCATTER 100 > RM> #define IXGBE_82599_SCATTER 32 > > Hm, I cannot find out into which chipset number this translates for my > device... > > =E2=80=8Bextract first 4 numbers of "chip", then try a grep:=E2=80=8B =E2=80=8Bgrep 1528 /usr/src/sys/dev/ixgbe/* /usr/src/sys/dev/ixgbe/ixgbe_type.h:#define IXGBE_DEV_ID_X540T 0x1528 =3D> Then your chipset is X540