http://qs1969.pair.com?node_id=517391


in reply to When does it pay to use the schwartzian transform?

the ST uses much more memory than plain sort, so if you have to sort lots of elements, the system can be forced to swap memory to disk and at this point the performace is going to degrade dramatically.

... and anyway, the ST (and the GRT) became obsolete the day I released Sort::Key ;-)