I get an 18% difference, not a 3%
Hmm. I do seem to have been lucky with my initial runs. I'm seeing between 3-10% on my box, but nothing near 18%. How odd.
Unfortunally, this technique can't be used if you are subclassing a class that doesn't coorperate
True. Although for hash based objects you could just use one slot for the key and still get safety for all your other state hashes.
I would have expected to be able to gain a little more by writing the methods like ...
Good point. Can any internals expert explain why +shift is so slow?
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