extreme network latency

Sepherosa Ziehau sepherosa at gmail.com
Wed Oct 19 18:22:11 PDT 2016

On Thu, Oct 20, 2016 at 2:22 AM, Richard Nyberg <rnyberg at murmeldjur.se> wrote:
>> For better performance, you can put the if_emx_load="YES" in
>> loader.conf.  However, em0 will become emx0 after loading that module,
>> so make sure that your rc.conf and pf.conf are also updated ;)
> It turned out hw.re.msi.enable="1" did not work so well. re0 simply

That's why I didn't enable MSI on re in the first place, some chips
work, some not.

> stopped doing anything after a while. My current configuration uses re
> and emx, both without polling. This works great since they end up
> using different interrupts with emx instead of em.

Heh, I see, it seems to the issue of shared interrupt.  emx is
actually using MSI by default, re probably is the only interrupt
producer on that pin.


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