[Buildroot] [Bug 15832] Low performance with python3 compare to python2 on the same platform

[bugzilla@busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=15832

--- Comment #2 from fabien.nogue@etictelecom.com ---
(In reply to Vincent Fazio from comment #1)

Thank you for your reply.
Here are the outputs of our test with the `cProfile` module:

```
# python2 -m cProfile test_python.py 10000000
         2 function calls in 18.871 seconds

   Ordered by: standard name

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
        1   18.871   18.871   18.871   18.871 test_python.py:3(<module>)
        1    0.000    0.000    0.000    0.000 {method 'disable' of
'_lsprof.Profiler' objects}


# python3 -m cProfile test_python.py 10000000
         3 function calls in 53.225 seconds

   Ordered by: standard name

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
        1   53.224   53.224   53.224   53.224 test_python.py:3(<module>)
        1    0.000    0.000   53.225   53.225 {built-in method builtins.exec}
        1    0.000    0.000    0.000    0.000 {method 'disable' of
'_lsprof.Profiler' objects}
```

Is the line `built-in method builtins.exec` relevant?

On the other hand, I am attempting to profile the `cpython` interpreter.
I recompiled `python3` with options `--enable-optimizations` and
`--enable-profiling`, run my test and got the `gmon.out`.
I have `no time accumulated` when I run `gprof` on the output. So far I have no
idea why the profiling output has no result. I need to investigate further.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot