Subject: Re: multi-core router
To: Thomas E. Spanjaard <email@example.com>
From: Robert Watson <rwatson@FreeBSD.org>
Date: 11/04/2007 14:27:03
On Sat, 3 Nov 2007, Thomas E. Spanjaard wrote:
> Bill Stouder-Studenmund wrote:
>> The choices were OpenBSD 4.2 with the updated pf (supposedly lots of
>> performance improvements) or FreeBSD 5.3 I think it was.
> Perhaps a bit off-topic, but if that option was really FreeBSD 5.3, I'd call
> it a rather unfair comparison, as FreeBSD 5.3 is that much older than
> OpenBSD 4.2, which was only released this week or so. Also, I don't think
> FreeBSD 5.3 supports (as many) 10GbE adapters as newer 6.2/7-CURRENT
> releases/snapshots do.
I would suggest running a FreeBD 7.0 beta (or full release if it's available
when you do the experimentation). It has both a more recent pf and
significantly improved multiprocessor performance, and will run IP to
completion in multiple threads (and hence on multiple cores). It also
includes vendor-supported 10gbps drivers from most of the major 10gbps
vendors; the Chelsio and Myricom PCIe cards seem to perform particularly well.
Using the new release will give you access to a lot more in the way of
features, and also allow you to report any problems to us so that we can fix
them :-). FreeBSD 5.3 is a three-year-old release and predates a lot of our
SMP networking work.
Robert N M Watson
University of Cambridge