Stefan Krah <stefan-use...@bytereef.org> added the comment: Mark Dickinson <rep...@bugs.python.org> wrote: > In the C version of decimal, do distinct Decimal objects ever share > coefficients?
The coefficients are members of the mpd_t struct (libmpdec data type), and they are not exposed as Python objects or shared. Cache locality is incredibly important: I have a patch that reserves a static coefficient of four words inside the PyDecObject. This patch speeds up _decimal by roughly another 30-40% for regularly sized decimals. If the decimal grows beyond that, libmpdec automatically switches to a dynamically allocated coefficient. I think sharing would probably slow things down a bit. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue14520> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
