HEADS-UP: IFLIB implementations of sys/dev/e1000 em, lem, igb pending

[Olivier Cochard-Labbé]

On Wed, Jan 11, 2017 at 9:13 PM, Matthew Macy <mmacy at nextbsd.org> wrote:

>
>  > Hmmm ... did your old tests do 4 or 8 queues on this hardware?
>  >
>  > Did the old tests run 1024 tx/rx slots or the max 4096?
>
> That's a great point, only having one thread per core could easily account
> for this. I'm hoping Sean can make txq != rxq work so that you can have
> 8txqs and 4 rxqs.
>
>
> ​The netgate RCC-VE 4860 is a 4 cores atom C2558E, and I'm using 2 of the
4 Gigabit Intel i350 ports.
Lab detail:
https://bsdrp.net/documentation/examples/forwarding_performance_lab_of_a_netgate_rcc-ve_4860

My tunning are (same for both test):
hw.igb.rxd="2048" (it should be useless now)
hw.igb.txd="2048" (it should be useless now)
hw.em.rxd="2048"
hw.em.txd="2048"
hw.igb.rx_process_limit="-1" (It should be useless now too)
hw.em.rx_process_limit="-1"

dev.igb.2.fc=0
dev.igb.3.fc=0

I can generate profiling data for you: what kind of data do you want ?