Home Original page

[Python-Dev] FAT Python (lack of) performance

Victor Stinner victor.stinner at gmail.com
Mon Jan 25 16:43:16 EST 2016 
Hi,

2016-01-25 22:20 GMT+01:00 Ludovic Gasc <gmludo at gmail.com>:
> Just thanks for this big contribution.
> And maybe this project could give new ideas to optimize Python, who knows ?

Sorry for my long email. I should try to summarize next time :-) In
short: FAT Python is not fast today, but it will be faster if you give
me a few more months to implement optimizations which will unlock the
real power of AST optimizers ;-)

I have a looooong list of ideas of optimizations:
https://fatoptimizer.readthedocs.org/en/latest/todo.html

According to microbenchmarks, the most promising optimizations are
functions inlining (Python function calls are slow :-/) and specialize
the code for the type of arguments.

And I agree to wait until fatoptimizer is proven to be faster than the
regular CPython before taking a decision of my 3 PEPs (509, 510, 511).

Victor
More information about the Python-Dev mailing list