[erlang-questions] Setting maximum amount of data allocated by an Erlang node.‏

Theepan <>
Mon Sep 7 03:23:24 CEST 2015


Hi Lukas,

I presume that erts_alloc is a control layer on top of
malloc/calloc/realloc or their variants to handle different types of
allocations. The question is, if a limit is set -- of course, with very
clear knowledge of what is being done -- can we expect relevant
exception/error from the LIB/STDLIB/BIF functions?

Theepan

On Mon, Sep 7, 2015 at 3:15 AM, Lukas Larsson <>
wrote:

> Hello Akash,
>
> On Sat, Sep 5, 2015 at 1:53 AM, Akash Chowdhury <>
> wrote:
>
>> b)      for maximum amount of data allocated by an Erlang node
>>
> Yes it is possible since at least 17.0 to limit the amount of memory the
> VM uses on OSs with a good virtual memory management interface. You need to
> supply two memory allocator flags in combination: +MMscs <Limit in MB>
> +Musac false. You can read up on what they do in the erts_alloc manual.
>
> Lukas
>
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>
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