[erlang-questions] [ANN] erserve Erlang/R (Rserve) connector - 3.0.0
Tue Aug 28 15:30:44 CEST 2012
Thank you Daniel, very interesting!
Daniel Eliasson escribió:
> Dear all,
> I announce to you the existence of erserve 3.0.0. It is available at
> https://github.com/del/erserve and a connection pool library for it at
> What is it?
> erserve is an Erlang application that lets you easily connect to an R
> instance via Rserve ( http://rforge.net/Rserve/ ) over a binary
> You can send strings to R to be evaluated, and also upload data to
> variables in R via binary transport.
> Who is it for?
> erserve should come in handy if you want to perform some kind of
> calculations that are tedious/difficult in Erlang, for instance
> running data through machine learning models. It can also shorten your
> deployment times by allowing you to model things in R, and then just
> use your results from Erlang, instead of porting them there.
> Is it fast?
> It's not bad. With 10 workers and a pool of 10 erserve connections, my
> workstation (Core i7 2.93 Ghz, 16 GB RAM) could run 10 000 individual
> classifications through a random forest in 8 seconds. That's about
> 1250 calls per second in throughput, with each invidivual call taking
> about 3 ms round-trip.
> If you have any questions, please let me know. If anyone has use for
> this, I would greatly appreciate feedback on improvements.
> I'd also like to thank my employer, Klarna AB, for letting me do some
> of the work on this open source software during work hours.
> Daniel Eliasson
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