[erlang-questions] Is there a lomit on erlang vm nodes connection speed

[Erik Søe Sørensen]

How about the "between two processes" part, is that accurate? Or are there
more senders and receivers involved?
Den 02/07/2013 10.09 skrev "Dror Mein" <drormein@REDACTED>:

> the message size will be around 100 bytes, but basically - that's what I
> want, yeah. when I use more servers, this bandwidth spreads between them.
>
>   ------------------------------
>  *From:* Sergej Jurecko <sergej.jurecko@REDACTED>
> *To:* Dror Mein <drormein@REDACTED>
> *Cc:* Gleb Peregud <gleber.p@REDACTED>; Erlang-Questions Questions <
> erlang-questions@REDACTED>
> *Sent:* Tuesday, July 2, 2013 10:41 AM
> *Subject:* Re: [erlang-questions] Is there a lomit on erlang vm nodes
> connection speed
>
> It only goes up to 300Mbps because you are sending a huge number of very
> small messages, between two processes over a single TCP connection.
>
> Is this your actual use case?
>
>
> Sergej
>
> On Jul 2, 2013, at 9:20 AM, Dror Mein wrote:
>
> From shell:
> 1> SendFunc = fun(Pid, Msg, Times, Func) when Times>0 -> Pid ! Msg,
> Func(Pid, Msg, Times-1. Func); (_,_,0,_)-> ok end.
> 2> F = SendFunc(Pid, <<00>>, 300000000, SendFunc).
> 3> spawn(F).
>
> where Pid is the pid of a simple receive function on the other node, that
> counts messages.
>
>   ------------------------------
>  *From:* Gleb Peregud <gleber.p@REDACTED>
> *To:* Dror Mein <drormein@REDACTED>
> *Cc:* Erlang-Questions Questions <erlang-questions@REDACTED>
> *Sent:* Tuesday, July 2, 2013 10:11 AM
> *Subject:* Re: [erlang-questions] Is there a lomit on erlang vm nodes
> connection speed
>
> I was able to get 5+gbps over multiple connections out of a single
> Erlang VM. Max probably did even more. There is no explicit limit in
> connection speed. Show us your code and we'll probably be able to tell
> you why it can not get good throughput.
>
> On Tue, Jul 2, 2013 at 8:47 AM, Dror Mein <drormein@REDACTED> wrote:
> > I'm trying to send data between two nodes on two different servers, that
> > talk through a 10 Gbps switch. Running iperf on the connection shows
> > consistent 5-7 gbps throughput. But with Erlang I can't exceed 300Mbps,
> when
> > looking through iptraf, and all I do is send data from one node to a
> dummy
> > process on the other.
> > Is there a limitation on connection speed on erlang? Is there a flag that
> > need to be configured?
> >
> > _______________________________________________
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> > http://erlang.org/mailman/listinfo/erlang-questions
> >
>
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