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Python Optimization SurprisesThis weekend, I took another crack at trimming microseconds off the common-case path for generic function execution, and succeeded in dropping the excution time from 13.2 microseconds to just over 9.8. (Which is about 9 microseconds overhead added relative to a hand-optimized Python version of the same trivial function.) Along the way, however, I realized a couple of surprising things about Python performance tuning. An amusing story that tells you something about Python's implementation. The discussion of closures is of particular interest... |
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