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Ask HN: What are the reason behind the erlang vm performance?
I always hear about the performance of the erlang vm regarding concurrent connection, I am wonder what bring such performance.
Also, it will be possible to implement/obtain the same level of performance in a system language using a library or it would be necessary to write/patch a compiler ?
- viraptor 12y agoIf you can manage your memory completely, then yes, you could obtain the same performance by applying some restrictions. There are some cool things erlang vm does: - immutable values (so you don't have to worry about sharing and copying) - per process heaps (so you don't have to worry about big stops on gc) - adjustable heap pre-allocation (so you don't have to resize heaps once you know how much memory your processes need) I don't think that depends on the compiler really. You couldn't patch python for example to do the same for you automatically. It's in the language limitations.
- fenollp 12y ago> manage your memory BEAM has a load of different memory allocators. Reading this [0] gives an idea of the piece of work the BEAM vm is. [0]: http://www.erlang-factory.com/static/upload/media/139454517145429lukaslarsson.pdf http://www.erlang-factory.com/static/upload/media/1394545171...