Antoine Pitrou <pit...@free.fr> added the comment:

> I don't think it's worth doing this for low-level and highly
> artificial benchmarks like the ones run by pybench.

Well, it can help to know which opcodes are executed when running a
particular bunch of sub-tests :)

> If at all, then opcode statistics should be an optional feature
> enabled by a command line switch. I'd then create new methods
> bench.start_opcode_stats(), bench.stop_opcode_stats() and
> bench.get_opcode_stats().
> 
> Also note that this line will result in wrong results:
> 
> +            if opstats:
> +                opstats = [new - old
> +                    for new, old in zip(sys.getdxp(), opstats)]

You are right, my assumption was simply that the error would be in the
noise.

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue4714>
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