ng_ether(4) performance implications

[Julian Elischer]

On 23/02/2016 7:09 AM, Franco Fichtner wrote:
> Hi all,
>
> I'm working on FreeBSD-based configuration code dating back more
> than 5 years.  Although this code uses NETGRAPH compiled into the
> kernel, it also makes use of NGM_ETHER_DETACH and a self-rolled
> NGM_ETHER_ATTACH to avoid having netgraph-attached interfaces when
> mpd isn't needed.
>
> In 2016, how is the state of ng_ether(4) performance to assert
> whether this approach is actually useful or not.
the performance is much as it always was..
ng_ether passes packets to the next ng module as fast as they come.
netgraph does sacrifice some speed for generality, but I think it's 
not too much.
>
> Seeing that NGM_ETHER_ATTACH is not available and should usefulness
> be implicated, would code for NGM_ETHER_ATTACH be merged into
> FreeBSD?

sure.. diffs always appreciated.

>
>
> Thanks,
> Franco
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