[erlang-questions] UDP receive performance

[Jesper Louis Andersen]

On Wed, May 23, 2018 at 5:29 PM Danil Zagoskin <z@REDACTED> wrote:

> Hi!
>
> We have a performance problem receiving lots of UDP traffic.
> There are a lot (about 70) of UDP receive processes, each handling about 1
> to 10 megabits of multicast traffic, with {active, N}.
>
>

Suppose you read the packets, and then throw everything away, as a test.
Are you then fast enough, or do you have a problem still? Chances are that
the problem isn't the reception by itself.

memmove just means you are moving memory around a lot, but the question is:
why?
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