15 May
2009
15 May
'09
6:09 a.m.
As a note, the LOG_CONST value doesn't do much with default settings; it currently defaults to 2, but must be at least 4 to do much on a 32-bit integer, with the other constants set as they are. It's there to constrain worst-case performance on long data types (64bit+); it used to be necessary for 32-bit data types, but I've optimized performance enough that it isn't anymore. I've attempted to create a good set of default constants so that the average user doesn't have to worry about them, but these tuning constants make a substantial impact on integer_sort and float_sort performance, so I'm open to suggestions for improvement.