[arch-general] Fedora Speeds Up Python 3.

[Ralph Corderoy]

Hi,

I thought this might be of interest.
https://fedoraproject.org/wiki/Changes/PythonNoSemanticInterpositionSpeedup

By building with -fno-semantic-interposition they remove the PLT that
provides a level of indirection when calling a libpython function.
libpython often calls itself and the PLT adds L1-cache pressure plus
prevents inlining.  Gives gains of 25% on some workloads.

-- 
Cheers, Ralph.