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Re: ANN: Dogelog Runtime, Prolog to the Moon (2021)

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I am having a cross language problem.

I really wonder why my Python implementation
is a factor 40 slower than my JavaScript implementation.
Structurally its the same code.

You can check yourself:

Python Version:
https://github.com/jburse/dogelog-moon/blob/main/devel/runtimepy/machine.py

JavaScript Version:
https://github.com/jburse/dogelog-moon/blob/main/devel/runtime/machine.js

Its the same while, if-then-else, etc.. its the same
classes Variable, Compound etc.. Maybe I could speed
it up by some details. For example to create an array
of length n, I use in Python:

temp = [NotImplemented] * code[pos]
pos += 1

Whereas in JavaScript I use, also
in exec_build2():

temp = new Array(code[pos++]);

So I hear Guido doesn't like ++. So in Python I use +=
and a separate statement as a workaround. But otherwise,
what about the creation of an array,

is the the idiom [_] * _ slow? I am assuming its
compiled away. Or does it really first create an
array of size 1 and then enlarge it?

Julio Di Egidio wrote:
> On Wednesday, 15 September 2021 at 17:46:15 UTC+2, Julio Di Egidio wrote:
>> On Wednesday, 15 September 2021 at 16:11:48 UTC+2, Mostowski Collapse wrote:
>>
>>>> Opinion: Anyone who is counting on Python for truly fast compute
>>> speed is probably using Python for the wrong purpose.
>> You just don't know anything about this environment: those who need fast computation rather use *libraries* where all the performance critical parts are written in native code... and that's pretty customary in Python.
>>
>> That doesn't mean Python is flawless, indeed (IMO) it isn't in so many ways: to the point that, for more professional solutions in the maths/statistics realms in particular, people rather use R: yet, the primary reason is not so not so much performance but really the solidity/structure of the language per se...
> 
> Good grief, I thought we were in comp-lang-python...  You are indeed just *off-topic* here: I mean, an announcement for a JS-based engine is welcome, but you posting your Python implementation diary in this group is as off-topic as it can be.
> 
> *Plonk*
> 
> Julio
> 

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ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <janburse@fastmail.fm> - 2021-05-02 23:05 +0200
  Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mina Arvuti lähedal <ya12983@mail.com> - 2021-05-25 18:44 -0700
  Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <janburse@fastmail.fm> - 2021-06-09 14:59 +0200
  Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-06-12 16:59 -0700
    Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-06-12 17:01 -0700
      Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-06-17 01:45 -0700
        Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <janburse@fastmail.fm> - 2021-06-23 14:57 +0200
          Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-06-25 04:00 -0700
            Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-06-25 05:02 -0700
              Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-07-10 16:50 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-07-12 01:04 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-08-02 09:48 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-08-11 08:28 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-08-12 10:40 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-08-12 10:42 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-08-14 06:04 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-02 09:38 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-05 05:13 -0700
  Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <janburse@fastmail.fm> - 2021-09-13 17:09 +0200
    Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <janburse@fastmail.fm> - 2021-09-15 16:11 +0200
      Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Julio Di Egidio <julio@diegidio.name> - 2021-09-15 08:46 -0700
        Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Julio Di Egidio <julio@diegidio.name> - 2021-09-15 08:49 -0700
          Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <janburse@fastmail.fm> - 2021-09-15 18:49 +0200
            Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-16 13:27 -0700
              Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-16 14:48 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-19 13:28 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) John Harris <niam@jghnorth.org.uk.invalid> - 2021-09-20 18:11 +0100
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-20 11:04 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-20 15:16 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-23 09:19 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-23 09:39 -0700
                Re: ANN: Dogelog Runtime, Prolog to the Moon (2021) Mostowski Collapse <bursejan@gmail.com> - 2021-09-24 06:19 -0700

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