Brett Cannon <brett at python.org> wrote: > Georg Brandl <georg at python.org> wrote: > > * A C implementation of the "decimal" module, with up to 80x speedup > > for decimal-heavy applications > > Could you bump up the factor to 120x in the final announcement? There were > a couple of performance improvements in the meantime, and this is what I'm > consistently measuring now. > > > Is that based on Modules/_decimal/tests/bench.py or some other benchmark? It's the pi benchmark from bench.py. This is what I'm typically getting on a Core 2 Duo 3.16 GHz: Precision: 9 decimal digits float: result: 3.1415926535897927 time: 0.113188s cdecimal: result: 3.14159265 time: 0.158313s decimal: result: 3.14159265 time: 18.671457s Precision: 19 decimal digits float: result: 3.1415926535897927 time: 0.112874s cdecimal: result: 3.141592653589793236 time: 0.348100s decimal: result: 3.141592653589793236 time: 43.241220s Stefan Krah
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