[Python-Dev] Python 3 optimizations continued... (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Tue Aug 30 19:38:06 CEST 2011

On Tue, 30 Aug 2011 08:27:13 -0700 stefan brunthaler <stefan at brunthaler.net> wrote:

>> Changing the bytecode width wouldn't make the interpreter more complex. > > No, but I think Stefan is proposing to add a second byte code format, > in addition to the one that remains there. That would certainly be an > increase in complexity. > Yes, indeed I have a more straightforward instruction format to allow for more efficient decoding. Just going from bytecode size to word-code size without changing the instruction format is going to require 8 (or word-size) times more memory on a 64bit system.

Do you really need it to match a machine word? Or is, say, a 16-bit format sufficient.

Regards

Antoine.

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