Date: Wed, 11 Jan 2017 13:02:06 -0700 From: Sean Bruno <sbruno@freebsd.org> To: =?UTF-8?Q?Olivier_Cochard-Labb=c3=a9?= <olivier@freebsd.org> Cc: Matthew Macy <mmacy@nextbsd.org>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, "freebsd-current@freebsd.org" <freebsd-current@freebsd.org> Subject: Re: HEADS-UP: IFLIB implementations of sys/dev/e1000 em, lem, igb pending Message-ID: <6c6cb534-73c7-464b-8af1-7445a9c0188c@freebsd.org> In-Reply-To: <CA%2Bq%2BTco-dcoU8EZnDEzgoK-v2Q2=U5GF6ASMSj0kwzd_wB5xig@mail.gmail.com> References: <30f21c75-d3a2-edcd-1999-d5ed9f970c06@freebsd.org> <b000a957-8d17-a04d-6275-0d3920aa8a17@freebsd.org> <CA%2Bq%2BTcramTrYgYT-s%2B=aBZzRJV8FmKQqGt=1twPhLBR7AoXkcQ@mail.gmail.com> <1598d97bf2a.c6bcb76838987.6501340920645175463@nextbsd.org> <574a7ac7-4842-9518-8286-a4d89a9f7a27@freebsd.org> <CA%2Bq%2BTco-dcoU8EZnDEzgoK-v2Q2=U5GF6ASMSj0kwzd_wB5xig@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--2vdJXqMe1gBhPGe7www9f7nJ3gpI1JuMx
Content-Type: multipart/mixed; boundary="QS57mcSObCrNIKjmEVANwKR6hUMcA7uqn";
protected-headers="v1"
From: Sean Bruno <sbruno@freebsd.org>
To: =?UTF-8?Q?Olivier_Cochard-Labb=c3=a9?= <olivier@freebsd.org>
Cc: Matthew Macy <mmacy@nextbsd.org>,
"freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
"freebsd-current@freebsd.org" <freebsd-current@freebsd.org>
Message-ID: <6c6cb534-73c7-464b-8af1-7445a9c0188c@freebsd.org>
Subject: Re: HEADS-UP: IFLIB implementations of sys/dev/e1000 em, lem, igb
pending
References: <30f21c75-d3a2-edcd-1999-d5ed9f970c06@freebsd.org>
<b000a957-8d17-a04d-6275-0d3920aa8a17@freebsd.org>
<CA+q+TcramTrYgYT-s+=aBZzRJV8FmKQqGt=1twPhLBR7AoXkcQ@mail.gmail.com>
<1598d97bf2a.c6bcb76838987.6501340920645175463@nextbsd.org>
<574a7ac7-4842-9518-8286-a4d89a9f7a27@freebsd.org>
<CA+q+Tco-dcoU8EZnDEzgoK-v2Q2=U5GF6ASMSj0kwzd_wB5xig@mail.gmail.com>
In-Reply-To: <CA+q+Tco-dcoU8EZnDEzgoK-v2Q2=U5GF6ASMSj0kwzd_wB5xig@mail.gmail.com>
--QS57mcSObCrNIKjmEVANwKR6hUMcA7uqn
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
On 01/11/17 12:47, Olivier Cochard-Labb=C3=A9 wrote:
> On Wed, Jan 11, 2017 at 4:17 PM, Sean Bruno <sbruno@freebsd.org
> <mailto:sbruno@freebsd.org>> wrote:
>=20
>=20
>=20
> Olivier:
>=20
> Give this a quick try. This isn't the correct way to do this, but =
I
> want to see if I'm on the right path:
>=20
>=20
> =E2=80=8Bthanks, it fix the problem, I've got back the 4 queues:=E2=80=8B=
>=20
> =E2=80=8Bigb2: <Intel(R) PRO/1000 PCI-Express Network Driver> port 0x30=
00-0x301f
> mem 0xdfea0000-0xdfebffff,0xdff24000-0xdff27fff irq 18 at device 20.0 o=
n
> pci0
> igb2: attach_pre capping queues at 8
> igb2: using 1024 tx descriptors and 1024 rx descriptors
> igb2: msix_init qsets capped at 8
> igb2: pxm cpus: 4 queue msgs: 9 admincnt: 1
> igb2: using 4 rx queues 4 tx queues
> igb2: Using MSIX interrupts with 5 vectors
> igb2: allocated for 4 tx_queues
> igb2: allocated for 4 rx_queues
> igb2: Ethernet address: 00:08:a2:09:33:da
> igb2: netmap queues/slots: TX 4/1024, RX 4/1024
> =E2=80=8B
> In forwarding mode, I measure about 10% performance drop with this new
> drivers on this hardware:
>=20
> x head r311848: packets per second
> + head r311849 and BAR patch: packets per second
> +----------------------------------------------------------------------=
----+
> |++ ++ + xxx x=
x|
> | |__M__A___=
_| |
> | |___AM__| =
|
> +----------------------------------------------------------------------=
----+
> N Min Max Median Avg St=
ddev
> x 5 924170 943071 927509 931612.1 8096.=
8269
> + 5 831452 845929.5 840940 838730.5 6413.=
5602
> Difference at 95.0% confidence
> -92881.6 +/- 10652.2
> -9.96999% +/- 1.07481%
> (Student's t, pooled s =3D 7303.85)
>=20
> Regards,
>=20
> Olivier
>=20
Hmmm ... did your old tests do 4 or 8 queues on this hardware?
Did the old tests run 1024 tx/rx slots or the max 4096?
sean
--QS57mcSObCrNIKjmEVANwKR6hUMcA7uqn--
--2vdJXqMe1gBhPGe7www9f7nJ3gpI1JuMx
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
iQGTBAEBCgB9FiEEuq1GMucSHejSCZfdEgHvyh5yfmQFAlh2jz5fFIAAAAAALgAo
aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEJB
QUQ0NjMyRTcxMjFERThEMjA5OTdERDEyMDFFRkNBMUU3MjdFNjQACgkQEgHvyh5y
fmTW1Af/ev4/sYMZG4173M8OKsh0iJgHojq837uThv2pQUWGjzTlxQgtn0fS8u9Y
WFFOSP8cKqGugrwf9rup816GKk57bohmcSGs0He9rJRcszzocwExhWCiCwidk+aT
LLqSG6U/DfMU9C4O8yzWrnZ+OM2vlnLKegxPBONSrJapQQIOPeHlWuL0Eb5gIItA
mzT0s0owzdrozHazIGpNMaf5KU27nKtcPpeGgLbV1amVqp7lPM1nA8TQ6L7uvtha
LNWpvDFqlvRctBHc3iYm+ZWwba25EcSNqgiR006uQeTfGDxaHV6Tk3qX5HLeSTK6
3kkjvsAS0OH0/bcUpXY7IHxjfwYTHQ==
=e2yN
-----END PGP SIGNATURE-----
--2vdJXqMe1gBhPGe7www9f7nJ3gpI1JuMx--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6c6cb534-73c7-464b-8af1-7445a9c0188c>