On Tue, Dec 8, 2015 at 6:39 PM, Greg Stark <st...@mit.edu> wrote: > Fwiw attached are two patches for perusal. One is a trivial patch to > add the size of the tape to trace_sort output. I guess I'll just apply > that without discussion.
+1 > The other replaces the selection sort with an > open coded sort network for cases up to 8 elements. (Only in the perl > generated qsort for the moment). I don't have the bandwidth to > benchmark this for the moment but if anyone's interested in trying I > suspect it'll make a small but noticeable difference. I'm guessing > 2-5%. I guess you mean insertion sort. What's the theoretical justification for the change? -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
