Network performance comparison as of today.

Samuel J. Greear sjg at
Fri Mar 3 09:43:49 PST 2017

On Fri, Mar 3, 2017 at 12:44 AM, Sepherosa Ziehau <sepherosa at>

> Hi all,
> Since so many folks are interested in the performance comparison, I
> just did one network related comparison here:
> The intention is _not_ to troll, but to identify gaps, and what we can
> do to keep improving DragonFlyBSD.
> According to the comparison, we _do_ find one area DragonFlyBSD's
> network stack can be improved:
> Utilize all available CPUs for network protocol processing.
> Currently we only use power-of-2 CPUs to handle network protocol
> processing, e.g. on 24 CPUs system, only 16 CPUs will be used to
> handle network protocol processing.  It is fine for workload involving
> userland applications, e.g. the HTTP server workload.  But it seems
> forwarding can enjoy all available CPUs.  I will work on this.
> Thanks,
> sephe
> --
> Tomorrow Will Never Die


Great work maximizing throughput while keeping the latency well bounded,
this is a pretty astounding performance profile, many thumbs up.

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