[erlang-questions] Erlang VM in Rust

Roman Galeev <>
Wed Sep 13 13:20:05 CEST 2017


> Personally, I'd just throw some more time after concurrent OCaml, and
then write a translator from Erlang to OCaml :P

Do you think concurrent OCaml has advantages over Erlang? And if yes, what
are they, in your opinion?

On Wed, Sep 13, 2017 at 1:11 PM, Jesper Louis Andersen <
> wrote:

> On Tue, Sep 12, 2017 at 10:10 PM austin aigbe <> wrote:
>
>> Hello,
>>
>> Any consideration for implementing the Erlang VM in Rust?
>>
>>
> I think the problem is roughly the same as with any other language: A lot
> of good effort has been sunk into the current VM in C and this makes a
> switch harder. Rust has ABI compatibility with C in some ways, which makes
> interoperability simpler, so one could imagine taking some of the more
> security-oriented parts of the VM and rewriting those in Rust or some other
> language of the more restrictive kind.
>
> If you want to rewrite all of it, a good approach is to start by making
> changes to the current VM which makes it smaller:
>
> * Move more work out into NIFs. Reimplement those in Rust
> * Coalesce more work on Dirty Schedulers
> * Implement Native Processes, so you can start running
> Rust-native-processes
> * Write an AOT or JIT compiler pass. Move ETS into pure Erlang. Move a lot
> of the BIF optimized functions into pure Erlang.
>
> A smaller core is way easier to replace.
>
> Personally, I'd just throw some more time after concurrent OCaml, and then
> write a translator from Erlang to OCaml :P
>
>
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>


-- 
With best regards,
     Roman Galeev,
     +420 702 817 968
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