For 60s test at 20Mbps, 200ms delay with hw.igb.num_queues=2 speed is 9.5Mbps. and without it the speed is 9.1Mbps.
However, SCTP is 17.10. For 60s test at 20Mbps, 150ms delay with hw.igb.num_queues=2 speed is 11.1Mbps. and without it the speed is 9.92Mbps. However, SCTP is 18.59. For 60s test at 20Mbps, 150ms delay with hw.igb.num_queues=2 speed is 11.13Mbps. and without it the speed is 9.92Mbps. However, SCTP is 18.59. For 60s test at 20Mbps, 100ms delay with hw.igb.num_queues=2 speed is 9.9Mbps. and without it the speed is 11.13Mbps. For 60s test at 20Mbps, 50ms delay with hw.igb.num_queues=2 speed is 13.1Mbps. and without it the speed is 13.1Mbps. For 60s test at 20Mbps, 10ms delay with hw.igb.num_queues=2 speed is 18.0619Mbps. and without it the speed is 18.12Mbps. Regards, Niu Zhixiong －－－－－－－－－－－－－－－ kaia...@gmail.com On Mon, Aug 11, 2014 at 7:50 PM, Michael Tuexen < michael.tue...@lurchi.franken.de> wrote: > On 11 Aug 2014, at 09:32, Niu Zhixiong <kaia...@gmail.com> wrote: > > > Thanks for your reminding. I tried hw.igb.num_queues=2 just now. But, > the throughput is still slow. And When I tested same things in my Virtual > machine-based environment(use Virtio), the throughput is similar(SCTP is 2x > than TCP). > So is the curve still the same or is it now constantly half of the SCTP > throughput which > was almost constant for different RTTs... > > Best regards > Michael > > > > Regards, > > Niu Zhixiong > > －－－－－－－－－－－－－－－ > > kaia...@gmail.com > > > > > > On Mon, Aug 11, 2014 at 3:08 PM, Eggert, Lars <l...@netapp.com> wrote: > > Hi, > > > > On 2014-8-10, at 5:48, Niu Zhixiong <kaia...@gmail.com> wrote: > > > I am using Intel I350-T4 NIC. > > > > igb driver? > > > > I've been having weird issues with this driver under 10-RELEASE, too. On > one machine, I had to limit hw.igb.num_queues=2 in order to get any sort of > useful connectivity. On another machine, I had to severely bump > kern.ipc.nmbclusters & friends. I'm not sure this is the issue here, since > SCTP seems to be working OK, but I'm not trusting igb NICs at the moment. > > > > Lars > > > > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
