On 2013-02-14 01:09, Rob T wrote:
You can check if disabling the GC just before the insert process improves the performance. You may see 3x performance improvement. Disabling is safe provided you re-enable, this can be done reliably with scope(exit) or something similar.
How did you know? It was 3x in my case. :) Well, even more but the program had to wait 2 seconds at the end to collect. With LIMIT at 10M, g++: 5.0s, gdc: 27.0s and 8.7s with GC.disable. Internal memory handling by containers - yeah, can't wait to see that happen!
