Version 2.3.3 vs 2.4.2a Timings
Colin J. Williams
cjw at sympatico.ca
Thu Aug 12 20:09:34 EDT 2004
These timing results with Fibbonacci, using and not using memoize might
be of interest.
Version 2.3.3 - Unwrapped is using interation in place of recursion
C:\Test>python tFib.py
Unwrapped, using fib: 7.52 usec/pass
Raw Fibonacci: 252.66 usec/pass
Fibonacci with old deco: 3.18 usec/pass
Version 2.4.2a
C:\Test>\Python24\python.exe tFib.py
Unwrapped, using fib: 4.92 usec/pass
Fibonacci, using @memoize: 2.89 usec/pass
Raw Fibonacci: 214.11 usec/pass
Fibonacci with old deco: 2.90 usec/pass
Conclusions:
2.4.2a provides a significant speedup for these cases.
The unwrapped approach is much better than recursive fibonacci, but not
as good as with memoise.
This is based on Dan Bishop's code.
Colin W.
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