3 ms·
Out of curiosity: yes2.py: import os stdout = os.fdopen(1, 'wb') while True: stdout.write('y\n') $ python yes2.py | pv -r > /dev/null [9.12Mi
by Twirrim 9y ago
Out of curiosity:
yes2.py:
import os
stdout = os.fdopen(1, 'wb')
while True:
stdout.write('y\n')
$ python yes2.py | pv -r > /dev/null
[9.12MiB/s]
$ pypy yes2.py | pv -r > /dev/null
[45.5MiB/s]
So pypy does a good job of speeding it up.
Off a quick 9 second run, python2 with profiling:
ncalls tottime percall cumtime percall filename:lineno(function)
1 4.272 4.272 9.301 9.301 yes2.py:1(<module>)
30856080 5.029 0.000 5.029 0.000 {method 'write' of 'file' objects}
1 0.000 0.000 0.000 0.000 {posix.fdopen}
1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}