Arnaud Delobelle wrote: > I get: > > 1.46s for _heapq.nsmallest > 0.85s for nsmallest_slott_bisect2 (version I posted) > > I am a bit surprised that mine is so slow compared with yours. I'll > do more tests later!
Strange. I see a significant difference only for python3 (on 64bit Linux) $ python3 nsmallest_perf3.py 3.1.1+ (r311:74480, Nov 2 2009, 15:45:00) [GCC 4.4.1] pick the 10 smallest items out of 5000000 nsmallest --> 0.310983181 nsmallest_slott_bisect --> 1.02625894547 nsmallest_slott_bisect2 --> 0.612951040268 $ python nsmallest_perf3.py 2.6.4 (r264:75706, Dec 7 2009, 18:43:55) [GCC 4.4.1] pick the 10 smallest items out of 5000000 nsmallest --> 0.743387937546 nsmallest_slott_bisect --> 0.961116075516 nsmallest_slott_bisect2 --> 0.746085882187 Peter -- http://mail.python.org/mailman/listinfo/python-list