[Python-Dev] Decimal news: speedup and stabilization (original) (raw)

Facundo Batista facundobatista at gmail.com
Fri Nov 30 18🔞34 CET 2007

2007/11/24, Nick Coghlan <ncoghlan at gmail.com>:

Did you change the Decimal repr to use the same format for the mantissa?

I don't understand the question. The output of repr() does not show this internals...

Could you also check the performance gain against the telco benchmark which is in the sandbox? [1]

I tested different versions of Decimal with this telco.py.

With Python from the trunk (r58550), which is the last decimal.py version previous to this change: 1241.8

After changed it to keep _int as string: 869.3 (30% faster!)

But still there're a lot of room for improvements. I just commited other patch from Mark, where he reordered new, to minimize isinstance() checks for the most used types.}

After new reordering patch: 672.9 (22% faster!)

:)

Regards,

-- . Facundo

Blog: http://www.taniquetil.com.ar/plog/ PyAr: http://www.python.org/ar/

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