Date: Tue, 8 Jul 2008 00:02:08 -0700 From: "Kip Macy" <kip.macy@gmail.com> To: "Mike Tancsa" <mike@sentex.net> Cc: FreeBSD Net <freebsd-net@freebsd.org>, Andre Oppermann <andre@freebsd.org>, Paul <paul@gtcomm.net> Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] Message-ID: <b1fa29170807080002i1de1111fn32180ab4666402dc@mail.gmail.com> In-Reply-To: <200807080107.m6817XxO021966@lava.sentex.ca> References: <4867420D.7090406@gtcomm.net> <4869ACFC.5020205@gtcomm.net> <4869B025.9080006@gtcomm.net> <486A7E45.3030902@gtcomm.net> <486A8F24.5010000@gtcomm.net> <486A9A0E.6060308@elischer.org> <486B41D5.3060609@gtcomm.net> <4871E85C.8090907@freebsd.org> <48726422.7050703@gtcomm.net> <200807080107.m6817XxO021966@lava.sentex.ca>
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On Mon, Jul 7, 2008 at 6:07 PM, Mike Tancsa <mike@sentex.net> wrote: > At 02:44 PM 7/7/2008, Paul wrote: > >> Also my 82571 NIC supports multiple received queues and multiple transmit >> queues so why hasn't >> anyone written the driver to support this? It's not a 10gb card and it >> still supports it and it's widely >> available and not too expensive either. The new 82575/6 chips support >> even more queues and the >> two port version will be out this month and the 4 port in october (PCI-E >> cards). Motherboards are >> already shipping with the 82576.. (82571 supports 2x/2x 575/6 support >> 4x/4x) > > > > > Actually, do any of your NICs attach via the igb driver ? > I have a pre-production card. With some bug fixes and some tuning of interrupt handling (custom stack - I've been asked to push the changes back in to CVS, I just don't have time right now) an otherwise unoptimized igb can forward 1.04Mpps from one port to another (1.04 Mpps in on igb0 and 1.04 Mpps out on igb1) using 3.5 cores on an 8 core system. -Kip
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