On Apr 9, 1:18 pm, Tom Boothby <tomas.boot...@gmail.com> wrote: > This shouldn't really come as a surprise. From the Cython documentation, > > "This is about 20 times slower, but still about 10 times faster than > the original Python-only integration code. This shows how large the > speed-ups can easily be when whole loops are moved from Python code > into a Cython module."
Since it is entirely unclear from that tutorial what the factor 20 (or the factor 10) refers to, I would not have understood that code to mean "even the fastest path of a cpdef function is slower than a cdef". There is a lot of documentation around that states "a cpdef function is essentially a cdef function that is also available and override-able as a python function" without stating that the overriding can also take effect at cdef level and (naturally) causes overhead. I think this definitely deserves to be clarified in the cython documentation. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
