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Issue #14394: Use elaborate phrases that boil down to "one to two orders 

of magnitude". Provide link to the benchmarks.
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Stefan Krah 2012-04-01 13:07:24 +02:00
parent 458a6fbaa8
commit bf8030830f
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Doc/whatsnew/3.3.rst
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@ -603,11 +603,17 @@ decimal
C-module and libmpdec written by Stefan Krah. C-module and libmpdec written by Stefan Krah.
The new C version of the decimal module integrates the high speed libmpdec The new C version of the decimal module integrates the high speed libmpdec
library for arbitrary precision correctly-rounded decimal arithmetic. library for arbitrary precision correctly-rounded decimal floating point
libmpdec conforms to IBM's General Decimal Arithmetic Specification. arithmetic. libmpdec conforms to IBM's General Decimal Arithmetic Specification.
Performance gains range from 12x for database applications to 80x for Performance gains range from 10x for database applications to 80x for
numerically intensive applications: numerically intensive applications. These numbers are expected gains
for standard precisions used in decimal floating point arithmetic. Since
the precision is user configurable, the exact figures may vary. For example,
in integer bignum arithmetic the differences can be significantly higher.
The following table is meant as an illustration. Benchmarks are available
at (http://www.bytereef.org/mpdecimal/quickstart.html).
+---------+-------------+--------------+-------------+ +---------+-------------+--------------+-------------+
| | decimal.py | _decimal | speedup | | | decimal.py | _decimal | speedup |