Date: Mon, 29 Jun 2015 14:55:29 +0200 From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= <olivier@cochard.me> To: =?UTF-8?B?R2Vycml0IEvDvGhu?= <gerrit.kuehn@aei.mpg.de> Cc: Rick Macklem <rmacklem@uoguelph.ca>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Scott Larson <stl@wiredrive.com>, carsten aulbert <carsten.aulbert@aei.mpg.de> Subject: Re: NFS on 10G interface terribly slow Message-ID: <CA%2Bq%2BTcquxtdTyo5q_z-q=Wk3DH%2BRp=o5sy49e35sX1jFkBUxDg@mail.gmail.com> In-Reply-To: <20150629091958.af9720d478a8903ab28adc1d@aei.mpg.de> References: <20150625145238.12cf9da3b368ef0b9a30f193@aei.mpg.de> <CAFt8naF7xmZW8bgVrhrL=CaPXiVURqDLsNN5-NHDg=hiv-Qmtw@mail.gmail.com> <1629011632.413406.1435365728977.JavaMail.zimbra@uoguelph.ca> <20150629091958.af9720d478a8903ab28adc1d@aei.mpg.de>
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On Mon, Jun 29, 2015 at 9:19 AM, Gerrit K=C3=BChn <gerrit.kuehn@aei.mpg.de> wrote: > On Fri, 26 Jun 2015 20:42:08 -0400 (EDT) Rick Macklem > <rmacklem@uoguelph.ca> 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
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