[Python-Dev] default of returning None hurts performance? (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Tue Sep 1 00:29:48 CEST 2009

Gregory P. Smith <greg krypto.org> writes:

I was just wondering if a bytecode for a superinstruction of the common sequence: 6 POPTOP 7 LOADCONST               0 (None) 10 RETURNVALUE might be worth it.

I think superinstructions in general would be a good thing to experiment, as wpython showed. Direct addressing (via a pseudo register file combining locals and constants) would eliminate many bookkeeping-related opcodes in common bytecode.

Regards

Antoine.

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