>>>>> "Steven" == Steven D'Aprano <[EMAIL PROTECTED]> writes:
Steven> $ time ./slurp_dict.py Starting at Sun Nov 11 14:26:51 Steven> 2007 Line 0 Line 1000000 Line 2000000 Line 3000000 Line Steven> 4000000 Line 5000000 Line 6000000 Line 7000000 Line Steven> 8000000 Items in dict: 8191180 Completed import at Sun Nov Steven> 11 14:29:31 2007 Starting to delete dict... Steven> Traceback (most recent call last): File "./slurp_dict.py", Steven> line 20, in <module> del id2name KeyboardInterrupt Steven> real 35m52.334s user 1m17.663s sys 0m16.758s Steven> Notice that the dict is completely read into memory in Steven> just two and a half minutes. The script then tries to Steven> delete the dict, and 32 minutes later is still Steven> struggling. That's the point I got sick of waiting and Steven> interrupted the script. Steven> Conclusion: it's a memory issue, or maybe a garbage Steven> collection issue, not a problem with dicts. uh, strange results... I run your same scripts with and without garbage collection enabled and those are the results: with gc enabled: [EMAIL PROTECTED]:~/wip/zodb_test$ python slurp_dict.py Starting at Sun Nov 11 16:35:12 2007 Line 0 Line 1000000 Line 2000000 Line 3000000 Line 4000000 Line 5000000 Line 6000000 Line 7000000 Line 8000000 Items in dict: 8191180 Completed import at Sun Nov 11 16:36:03 2007 Starting to delete dict... Completed deletion at Sun Nov 11 16:36:09 2007 Finishing at Sun Nov 11 16:36:09 2007 and without gc enabled [EMAIL PROTECTED]:~/wip/zodb_test$ python slurp_dict.py Starting at Sun Nov 11 16:39:02 2007 Line 0 Line 1000000 Line 2000000 Line 3000000 Line 4000000 Line 5000000 Line 6000000 Line 7000000 Line 8000000 Items in dict: 8191180 Completed import at Sun Nov 11 16:39:49 2007 Starting to delete dict... Completed deletion at Sun Nov 11 16:39:56 2007 Finishing at Sun Nov 11 16:39:56 2007 all with python2.4 on and i386 Linux cheers Alberto -- http://mail.python.org/mailman/listinfo/python-list