[erlang-questions] Slow UTP packets

Ovidiu Deac <>
Fri Jul 31 16:16:03 CEST 2009


It makes sense but it doesn't look good. 1MB/s is not that much.

...and fast messaging between processes should be one of Erlang's strong points.

Maybe I should use a passive socket instead.

On Fri, Jul 31, 2009 at 6:02 AM, Mihai Balea<> wrote:
>
> On Jul 30, 2009, at 9:23 AM, Ovidiu Deac wrote:
>
>> But what is the explanation for the fact that the output slows during
>> runtime? Is it a bug?
>
> One possible explanation would be accumulation of messages in your receiving
> process' mailbox.
> If you cannot consume messages as fast as they arrive, they will build up in
> your mailbox and slow down the process.
>
> Due to the way the mailbox is implemented, it cannot cope well with massive
> numbers of messages. I don't remember the details, but I believe it has to
> do with using O(n) algorithms. Maybe somebody in the know can provide more
> details.
>
> Mihai
>
>


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