What are you doing for RX? More netmap? Or the normal stack?

-a


On 22 January 2016 at 21:34, Marcus Cenzatti <cenza...@hush.com> wrote:
> 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
>
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