[Python-Dev] [ANN] VPython 0.1

Paul Moore p.f.moore at gmail.com
Wed Oct 22 14:34:00 CEST 2008

2008/10/22 J. Sievers <cadr4u at gmail.com>:
> I implemented a variant of the CPython VM on top of Gforth's Vmgen; this made
> it fairly straightforward to add direct threaded code and superinstructions for
> the various permutations of LOAD_CONST, LOAD_FAST, and most of the two-argument
> VM instructions.
> Totals:                          4750ms  6788ms  -30.0%  4929ms  7035ms  -29.9%
> ``other'' is vanilla Python 2.5.2.
> For details, see README, TODO, and PYBENCH which come with the sources.
> Feedback is, of course, very welcome and it'd be great to have some pybench
> results from different machines.

Am I reading this right? You got a 30% speed improvement over
CPython??? (I never read pybench results right, so if this is actually
30% slower than CPython, let me know and I'll shut up :-)) If so, what
(if any) limitations are there to the implementation?


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