[REBOL] Re: [python]
From: moliad:aei:ca at: 23-Nov-2003 12:16
---Tim Wrote:---
> * Maxim Olivier-Adlhoch <[maximo--meteorstudios--com]> [031118 10:20]:
> >
>
> > when I know that it takes 50 modules to do what rebol does with the
> > amount of code in the equivalent of 3 of them (without needing to
> > actually load them ... ;-)
>
> > This while running 5-10 times faster... and having a much more reusable
> code base in any circumstance.
>
> I've really not seen such an all-around speedup of rebol over python
> to that degree. What comparisons have you made?
>
> I would feel safe suggesting that line-for-line, (speaking from my
> experience only) rebol is probably 50% more productive than python.
> [...]
I was basing that on a mail posted on this list (sometime ago) from someone who had done
in-depth benchmarking.
it is possible that the gap between the two has lessened since then, especially since
python now uses more and more C based compiled object modules, which, like any rebol
native, execute much faster.
you are right, in what I can see from more recent comparisons. they currently seem pretty
equal in speed.
one thing though is that when writing code in rebol, performance is very elastic. yesterday
I was having fun profiling a hashing loop:
for 100000 ops, time went from:
50.1 seconds
to
4.02 seconds
A 92% time reduction, changing the block type to hash! lowered time by 90% (down to 5
senconds). some details like the way items where added to the block (insert instead of
append), and using repeat instead of 'FOR trimmed about 20% in remaining time, from 5
seconds to 4 seconds.
in other languages, there is usually less elasticity because there is many times only
one way to address such low level things as setting/finding a value in an array... in
rebol there can be many compatible approaches.
-MAx
