Date: Wed, 28 Mar 2018 09:38:32 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: "Muenz, Michael" <m.muenz@spam-fetish.org> Cc: freebsd-net@freebsd.org Subject: Re: Current state of Intel XL710 40G NIC ixl performance Message-ID: <201803281638.w2SGcWNp057893@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <8c3c7375-e299-78c7-6cc6-486bc41c54b1@spam-fetish.org>
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> Am 28.03.2018 um 06:11 schrieb christian russell: > > I am having trouble getting an Intel XL710-DA2 NIC to get even close to > > line rate. It is a 4x10 Gbps card. The box is running FreeBSD 11 (FreeNAS > > in particular). > > > > We have tried both 1.7 and 1.9 driver revisions with similar results. The > > NVM version is 5.05. The card is in a confirmed 8x slot on a SuperMicro > > X10DRL-i with two Xeon E5-2600 processors and 256 GB DDR4 RAM. After > > upping the interrupt threshold to 9000 dmesg doesn't log anything unusual. > > > > We have added the tunes that are standard for 10 Gbps configurations. > > > > On a single-client basis the fastest rates we see are around 5 Gbps. > > Hitting this server from multiple boxes we see peaks of 20 Gbps at the very > > highest. More frequently things top off around 13 Gbps. These numbers are > > coming from iperf tests. We are seeing similar numbers with direct > > point-to-point as well as switched topologies. > > > > These threads from 2015 describe similar issues but fizzled out: > > https://lists.freebsd.org/pipermail/freebsd-net/2015-May/042273.html > > https://lists.freebsd.org/pipermail/freebsd-net/2015-October/043584.html > > > > Is there very particular tuning required to get these cards working at > > proper speed? Any insights? > > > > >From Googling around it appears frustration with this card and FreeBSD is > > pretty common. > > > > Thanks in advance. > > > > Christian > > I can't deliver any special insights but we had many problems with X710 > (without L) and Linux. > Did some testing a while ago with OPNsense (based on 11.1) and got line > rate with iperf and single client. > ixl0 in and ixl1 out. So this should be fine. If you like I can send you > the sysctl values to compare. I would be interested in your sysctl values. -- Rod Grimes rgrimes@freebsd.org
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