On 28 September 2012 19:19, Stefan Krah <[email protected]> wrote: > Brett Cannon <[email protected]> wrote: >> Georg Brandl <[email protected]> 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
Wow! I had no idea cdecimal was that close in speed to float. That's seriously impressive. Paul _______________________________________________ Python-Dev mailing list [email protected] http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com