Bhyve: virtio-net very slow with FreeBSD 12.0 Host

[Ole]

Sat, 09 Feb 2019 02:21:08 -0500 - "Dave Cottlehuber"
<dch at skunkwerks.at>:

> On Tue, 5 Feb 2019, at 22:16, Ole wrote:
> > PS:
> > 
> > i discovered the tool iperf. The connection from Host to VM is good,
> > 6.36 Gbits/sec. The connection from Outside to host is also good,
> > 847 Mbits/sec.
> > 
> > But from outside to the VM it is just 60.6 Kbits/sec. 
> > 
> > Is there a generally problem with my setup?:
> > 
> > 
> > em0 em0.4030(mtu 1400) tap0(mtu 1400)  
> 
> I can’t speak for the specific config above, but generally this is a
> good time to reach for tcpdump(1) to capture some traffic on em0 

Yes, thanks. I have done this. But could only determine that it was
slow. It looked like normal TCP-Connection.

But I had to stop analysis. I need this machine. So I installed FreeBSD
11.2 with the really same setup and this problem was gone.

Ole
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