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An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
PostgreSQL 9.3 beta: Federated databases and more
LWN.net Weekly Edition for May 9, 2013
Why not try it and see?
(By the way, it'd be 48 bits that you'd save replacing a 64 bit pointer with a 16 bit index).
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