Comment #33 on issue 1026 by asmeurer: pypy doesn't run sympy http://code.google.com/p/sympy/issues/detail?id=1026
To me, this is a PyPy issue, not a SymPy issue. The JIT optimizations just don't do as well for highly object oriented stuff, like with metaclasses (or at least that's what I'm told).
They have asked us for good benchmarks, though. We do already have some, though the runner is broken. See the various benchmark directories throughout the repository, and issue 1741. But these benchmarks (except for the polys ones) are outdated, in that they don't benchmark a lot of behavior that was added since them.
Also, I wonder if profiling tools like kernprof can be used with PyPy, so that we can see where it's taking so long (I'm especially interested in why the import time is so slow).
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