[pypy-issue] [issue932] Python 1.7 slower on home maid path tracing than 1.6

[Guillaume Bouchard]

Guillaume Bouchard <guillaume.bouchard at liris.cnrs.fr> added the comment:

New times for pypy1.8 release using the same python file.

Python 2.7.1 (d8ac7d23d3ec, Aug 17 2011, 11:51:19)
[PyPy 1.6.0 with GCC 4.4.3]

~/src/pypy/pypy-1.6/bin/pypy smallpt.py 640 480 4  40.23s user 0.09s system 99%
cpu 40.365 total

Python 2.7.1 (7773f8fc4223, Nov 18 2011, 18:47:11)
[PyPy 1.7.0 with GCC 4.4.3]

~/src/pypy/pypy-1.7/bin/pypy smallpt.py 640 480 4  60.05s user 0.15s system 99%
cpu 1:00.31 total

Python 2.7.2 (0e28b379d8b3, Feb 09 2012, 19:41:03)
[PyPy 1.8.0 with GCC 4.4.3]

~/src/pypy/pypy-1.8/bin/pypy smallpt.py 640 480 4  42.46s user 0.11s system 99%
cpu 42.622 total

So 1.8 keeps in touch with what was 1.6 previously. Is this bug can be
considered close or is it still a speed regression because all the optimizations
between 1.6 and 1.8 should have make it quicker?

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