Date: Mon, 14 May 2012 15:43:38 -0600 From: "Kirk Davis" <kirk.davis@epsb.ca> To: "Jack Vogel" <jfvogel@gmail.com> Cc: freebsd-net@freebsd.org Subject: RE: 10Gb/s ixgbe and mbuf performance tuning. Message-ID: <529374128DC1B04D9D037911B8E8F0531095BEFE@Exchange26.EDU.epsb.ca> In-Reply-To: <CAFOYbc=NsEy1-eT_XUvhrF7RQvkVbW0SDfHnh7bpCxKib96oWw@mail.gmail.com> References: <529374128DC1B04D9D037911B8E8F0531095BEF8@Exchange26.EDU.epsb.ca> <CAFOYbc=NsEy1-eT_XUvhrF7RQvkVbW0SDfHnh7bpCxKib96oWw@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, May 14, 2012 at 2:02 PM, Jack Vogel [mailto:jfvogel@gmail.com] wrote: =20 >Do you have LRO enabled? Also, you say it stops routing, do you mean it >passes non-routing traffic, or does everything stop? I do have LRO enabled on both of the interfaces. It stops accepting traffic. It doesn't router traffic and I can't ssh into the server. If I try to ping a host on the local network from the console, I get an "Out of Buffer Space" error (not sure of the exact wording). >Jack > >On Mon, May 14, 2012 at 9:49 AM, Kirk Davis <kirk.davis@epsb.ca> wrote: >Hi, > > I am running FreeBSD 8.1p3 amd64 with 6Gb of RAM. This >is a router using Quagga for BGP. It has two 10Gb/s network connections >using the intel ixgbe 2.4.4 driver. It is handling routing for about >200 remote sites and about 300k simultaneous sessions through the box. >After a few hours at high traffic volumes (just over a 1Gb/s) it will >stop routing any traffic. It look like I am running out of mbuf's. I >have increased them but I am worried that there is a limit as to how >much I can increase them without starving the kernel of space. Console >is still responsive but no network. > I have looked over Tuning(7) and some other great >articles on the net on performance tuning FreeBSD but it has left me a >little confused. Can someone help to explain the best way to >troubleshoot this issue and any formulas to tune it. --- Kirk _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" =20
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?529374128DC1B04D9D037911B8E8F0531095BEFE>