[issue24375] Performance regression relative to 2.7

[Yury Selivanov]

New submission from Yury Selivanov:

Attached (t.py) is a random script that I stumbled upon pretty randomly on the internet -- someone used it to test different languages VMs performance.

The interesting thing is that 2.7 runs it 20-30% faster than 3.4 & 3.5 consistently.  The script does not involve any unicode data manipulation, it's mostly abount float arithmetic and function calls.

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components: Interpreter Core
files: t.py
messages: 244754
nosy: benjamin.peterson, haypo, ncoghlan, pitrou, yselivanov
priority: normal
severity: normal
status: open
title: Performance regression relative to 2.7
versions: Python 3.5, Python 3.6
Added file: http://bugs.python.org/file39609/t.py

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<http://bugs.python.org/issue24375>
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