[pypy-dev] why pypy startup is currently ~5 times slower than python?

[holger krekel]

Hi,

using the following script:

    import sys, subprocess

    for i in range(1000):
        subprocess.call([sys.executable, "--version"])

i get these results repeatedly:

(0)hpk at teta:~/p/pytest$ time python2.7 r.py 2>/dev/null >/dev/null
real    0m1.885s
user    0m0.110s
sys     0m0.480s

(0)hpk at teta:~/p/pytest$ time pypy r.py 2>/dev/null >/dev/null
real    0m8.763s
user    0m1.730s
sys     0m2.880s

IOW, pypy seems to be consistently 5-6 times slower on startup.
Does anybody have explanations why?   When we did measurements
for the Nokia Maemo device pypy was actually much faster IIRC.

holger