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.
