Date: Tue, 8 Jul 2008 14:06:17 -0700 From: "Kip Macy" <kip.macy@gmail.com> To: "Brian McGinty" <brian.mcginty@gmail.com> Cc: FreeBSD Net <freebsd-net@freebsd.org>, Paul <paul@gtcomm.net>, Andre Oppermann <andre@freebsd.org>, Mike Tancsa <mike@sentex.net> Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] Message-ID: <b1fa29170807081406o56e4211ew375c232a2cd4b682@mail.gmail.com> In-Reply-To: <601bffc40807081346q454c1f40td47a0f54806d8a8c@mail.gmail.com> References: <4867420D.7090406@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> <b1fa29170807080002i1de1111fn32180ab4666402dc@mail.gmail.com> <601bffc40807081346q454c1f40td47a0f54806d8a8c@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Jul 8, 2008 at 1:46 PM, Brian McGinty <brian.mcginty@gmail.com> wrote: >> 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. > > I have a 8 core system running stock Linux that easily does line rate > (ie, 1.488 Mpps) on 3 (82575) interfaces. Ie, 3 * 1.48 Mpps! Hi Brian I very much doubt that this is ceteris paribus. This is 384 random IPs -> 384 random IP addresses with a flow lookup for each packet. Also, I've read through igb on Linux - it has a lot of optimizations that the FreeBSD driver lacks and I have yet to implement. Thanks, Kip
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?b1fa29170807081406o56e4211ew375c232a2cd4b682>