[pypy-issue] [issue1678] example 20x slower after the first time

[Armin Rigo]

New submission from Armin Rigo <armin.rigo at gmail.com>:

>From 华宏亮 on pypy-dev.

bug: run fibonacci() for 10 times and it's much lower since the second time.

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files: x.py
messages: 6498
nosy: arigo, pypy-issue
priority: performance bug
status: unread
title: example 20x slower after the first time

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PyPy bug tracker <tracker at bugs.pypy.org>
<https://bugs.pypy.org/issue1678>
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