Re:How the CPython compiler works
by glandium on Thursday September 24, 2020 @06:47PM
(#24584583)
Caveat: pypy is not _consistently_ faster than CPython. There are cases where it is slower, sometimes even by a large margin.
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Of course. It's clearly visible e.g. on https://speed.pypy.org/ that it doesn't show equal performance on all benchmarks. The factor four corresponds to the geometric mean of all benchmarks. And as you say there are benchmarks where it even performs slower than CPython.