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Mon Jan 31 14:23:29 CET 2011 · https://mail.python.org/pipermail/python-dev/2011-January/107795.html

On 1/31/2011 5:31 AM, Steven D'Aprano wrote:
> Jurjen N.E. Bos wrote:
>> I was impressed by the optimizations already in there, but I still
>> dare to suggest an optimization that from my estimates might shave off
>> a few cycles, speeding up Python about 5%.
>> The idea is simple: change the byte code argument values from two
>> bytes to one.
>
>
> Interesting. Have you seem Cesare Di Mauro's WPython project, which
> takes the opposite strategy?
>
> http://code.google.com/p/wpython2/

The two strategies could be mixed. Some 'word codes' could consist of a 
bytecode + byte arg, and others a real word code. Maybe WPython does 
that already. Might end up being slower though.

-- 
Terry Jan Reedy

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[Python-Dev] Byte code arguments from two to one byte: did anyone try this?