New issue 3027: list.pop(0) ten times slower than on CPython
https://bitbucket.org/pypy/pypy/issues/3027/listpop-0-ten-times-slower-than-on-cpython
Armin Rigo:
The following (bad) code runs 10 times slower on PyPy 2 or 3 than on CPython
2.x or 3.x. Figure out why:
```
#!python
import time
lst = [[i, i] for i in range(62500)]
t = time.time()
while lst:
lst.pop(0)
t2 = time.time()
print(t2 - t)
```
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