On Thu, Mar 16, 2017 at 03:50:42PM -0400, John Jasen wrote: > As a few points of note, partial resolution, and curiosity: > > Following down leads that 11-STABLE had tryforward improvements over > 11-RELENG, I upgraded. The same tests (24 client streams over UDP with > small packets), the system went from passing 1.7m pps to about 2.5m. > > Following indications from Navdeep Parhar that UDP queue hashing is not as > efficient as it could be, we started running the tests with various powers > of 2 streams (2,4,8,16,32) -- and were able to push the system up to 5m pps. > > We are currently seeing in the tests approximately 10-11m pps on the > outside interface, around 5-6m dropped, and 5 million passed.
You want more? > On Mon, Mar 13, 2017 at 1:31 PM, Navdeep Parhar <npar...@gmail.com> wrote: > > > On Mon, Mar 13, 2017 at 10:13 AM, John Jasen <jja...@gmail.com> wrote: > > > On 03/13/2017 01:03 PM, Navdeep Parhar wrote: > > > > > >> On Sun, Mar 12, 2017 at 5:35 PM, John Jasen <jja...@gmail.com> wrote: > > >>> UDP traffic. dmesg reports 16 txq, 8 rxq -- which is the default for > > >>> Chelsio. > > >>> > > >> I don't recall offhand, but UDP might be using 2-tuple hashing by > > >> default and that might affect the distribution of flows across queues. > > >> Are there senders generating IP fragments by any chance (that'll > > >> depend on the "send size" that your UDP application is using)? > > > > > > No, they're not fragmenting. > > > > > >> Have you tried limiting the adapter's rx ithreads to the CPU that the > > >> PCIe slot with the adapter is wired to? > > > > > > Above and beyond the use of cpuset, you mean? > > > > I meant cpuset. > > > > If possible, try your experiments on a single socket system. > > > > Regards, > > Navdeep > > _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
