Date: Sat, 19 Jul 2008 19:17:45 -0700 From: "Brian McGinty" <brian.mcginty@gmail.com> To: "Kip Macy" <kip.macy@gmail.com> Cc: FreeBSD Net <freebsd-net@freebsd.org>, Paul <paul@gtcomm.net> Subject: Re: Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp] Message-ID: <601bffc40807191917g131bacao6485376365304f55@mail.gmail.com> In-Reply-To: <b1fa29170807191811yaa6e515vc388693abb97aa56@mail.gmail.com> References: <4867420D.7090406@gtcomm.net> <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> <b1fa29170807081406o56e4211ew375c232a2cd4b682@mail.gmail.com> <601bffc40807112344n7a683f81y516f540e24d87389@mail.gmail.com> <b1fa29170807191811yaa6e515vc388693abb97aa56@mail.gmail.com>
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G'day Kip, > I'm hoping to get to it some time in August. I'm a bit behind in my > contracts at the moment. A few weeks ago, I did a quick comparison of the driver between FreeBSD and Linux, and found quite a few differences that's worth pulling over. The guy from Intel working on FreeBSD, Jack?, is he the one that does this sort of sync-up of the drivers between the two distribution, or you? There's been a lot of changes recently, including full support for multiple Rx/Tx queues that significantly ups the ante on performance. FreeBSD doesn't support multiple Rx/Tx, or does something half arsed. > FYI: I'm actually able to forward 2.3Mpps between 2 10Gig interfaces > on an 8-core system. I'm hoping to push it up to 3Mpps. Is this no-loss number, and how did you test it? I don't have throughput numbers for the Oplin. I'm waiting to get some time on the Ixia at work to generate performance numbers for 1G and 10G for all packet sizes, on FreeBSD and Linux, on a 16 core system, and blast it to the list. I expect Linux to do 2-3 times better :-) Later, Brian
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