[erlang-questions] Deprecation and removal of the non-smp emulator

Tristan Sloughter <>
Tue Apr 4 20:08:05 CEST 2017

Ah, ok, I thought the minimal mode meant no smp and there was a special
flag for erlc to turn on smp if you wanted it.

But either way, I agree improving startup time of smp enabled vm is


  Tristan Sloughter

  "I am not a crackpot" - Abe Simpson


On Tue, Apr 4, 2017, at 12:55 AM, Lukas Larsson wrote:

> On Mon, Apr 3, 2017 at 6:34 PM, Tristan Sloughter
> <> wrote:
>> __

>> First use case I thought of when I heard this news was 'erlc' itself
>> :). It disables smp by default, right?

> erlc uses the following startup flags: "erl +A0 +sbtu -noinput -mode
> minimal -boot start_clean"

> So, it uses the smp emulator if available.



>> This gives a few milliseconds speedup in startup time when booting
>> the VM which is mostly a non-issue but nice for cli tools.

> If startup time is important, I think the time would be better spent
> optimizing the startup time of the smp-emulator, then to maintain the
> non-smp emulators just for it's startup speed.

> Lukas

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