hello, I am testing a chelsio t520-so-cr connected to a Intel card with ix(4) driver, I can get the ncxl0 interface to transmit at 14Mpps to another chelsio or to a Intel card. However I can only get 800Kpps-1Mpps for RX tests from both chelsio or Intel.
I have test with both FreeBSD 11 and FreeBSD 10.3-PRERELEASE. I tested it untuned first and later I have applied tuning recommendations I found on BSDRP[1] website. Results still ranging from 800Kpps to 1Mpps for RX. Tests are done w/ with pkt-gen in netmap mode on ncxl interface with both IP address and MAC address source/dest. I have tested ix-ix and I can confirm 14Mpps for both RX and TX directions. I have tested with two different chelsio T520 and both have the very same results. What particular loader/sysctl or ifconfig options I should investigate? I also tested disabling txcsum, rxcsum and TSO. Results are different but still on the much lower mentioned 800K-1M pps rate. thank you [1]http://bsdrp.net/documentation/examples/forwarding_performance_lab_of_a_hp_proliant_dl360p_gen8_with_10-gigabit_with_10-gigabit_chelsio_t540-cr _______________________________________________ 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"
