Antoine Pitrou <[email protected]> added the comment:
Here is a quick profile under 3.x:
Time: 10178.0 ms
320812 function calls (320809 primitive calls) in 10.182 seconds
Ordered by: internal time
ncalls tottime percall cumtime percall filename:lineno(function)
10000 5.937 0.001 5.937 0.001 {built-in method read}
10000 1.462 0.000 1.462 0.000 {built-in method waitpid}
10000 1.042 0.000 1.042 0.000 {built-in method fork_exec}
10000 0.752 0.000 8.131 0.001 subprocess.py:1119(_execute_child)
1 0.228 0.228 10.182 10.182 bench_subprocess.py:1(<module>)
10000 0.177 0.000 8.345 0.001 subprocess.py:631(__init__)
20000 0.079 0.000 0.079 0.000 {built-in method close}
10000 0.061 0.000 1.584 0.000 subprocess.py:1368(wait)
So it looks like our parent Python process spends its time (read(), waitpid())
waiting for its child...
----------
_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue11314>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
