[Bug libstdc++/40852] [parallel-mode] parallel sort run time increases ~10 fold when vector size gets over ~4*10^9

[singler at gcc dot gnu dot org]

------- Comment #9 from singler at gcc dot gnu dot org  2009-10-22 06:57 -------
I can reproduce the bug on my machine (2 Quadcore Nehalems, 48GB RAM)

4 x 10^9 ints: 65 seconds used in sort
5 x 10^9 ints: 193 seconds used in sort


-- 

singler at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |singler at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-10-22 06:57:14
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40852