[pypy-issue] [issue1752] bz2.BZ2File extremely slow

[Pepijn de Vos]

New submission from Pepijn de Vos <pepijndevos at gmail.com>:

Using bz2.BZ2File is extremely slow compared to a custom implementation based on
bz2.BZ2Decompressor or either solutiion on CPython.

The 3 speedy solutions finish this big bz2 file in 6 seconds, the BZ2File on
PyPy just never finishes within a reasonable time.

I ran a profiler, which showed nothing at all.

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files: bz2test.py
messages: 6843
nosy: pepijndevos, pypy-issue
priority: performance bug
status: unread
title: bz2.BZ2File extremely slow

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PyPy bug tracker <tracker at bugs.pypy.org>
<https://bugs.pypy.org/issue1752>
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