nosetests

32: 386 μs (12.0625 μs each)
64: 672.102 μs (10.5016 μs each)
128: 1510.86 μs (11.8036 μs each)
256: 2782.11 μs (10.8676 μs each)
512: 5591.87 μs (10.9216 μs each)
1024: 12812.1 μs (12.5119 μs each)
2048: 21835.1 μs (10.6617 μs each)
4096: 46059.1 μs (11.2449 μs each)
8192: 114127 μs (13.9315 μs each)
16384: 181217 μs (11.0606 μs each)
32768: 419649 μs (12.8067 μs each)
65536: 804320 μs (12.2729 μs each)
131072: 1.73534e+06 μs (13.2396 μs each)
262144: 3.74451e+06 μs (14.2842 μs each)
524288: 8.8694e+06 μs (16.917 μs each)
1048576: 1.69993e+07 μs (16.2118 μs each)
2097152: 3.29387e+07 μs (15.7064 μs each)
   |                                                                            
   +3.29387e+07                                                             *   
   |                                                                    ----    
   |                                                               -----        
   |                                                           ----             
   |                                                      -----                 
   |                                                 -----                      
   |                                             ----                           
   |                                        -----                               
   |                                   -----                                    
   |                               ----                                         
   |                          -----                                             
   |                      ----                                                  
   |                 -----                                                      
   |              ---                                                           
   |           ---                                                              
   |        ---                                                                 
   | -------                                                                    
---+386---------------------------------------------------------------------+---
   +32                                                          +2.09715e+06    

name                                 #n            tsub      ttot      tavg
..vl/lees/bucket/nilm/nilmdb/nilmdb/interval.py.__iadd__:184  4194272          10.025323     30.262723     0.000007    
..evl/lees/bucket/nilm/nilmdb/nilmdb/interval.py.__init__:27  4194272          24.715377     24.715377     0.000006    
../lees/bucket/nilm/nilmdb/nilmdb/interval.py.intersects:239  4194272          6.705053      12.577620     0.000003    
..im/devl/lees/bucket/nilm/nilmdb/tests/aplotter.py.plot:404  1                0.000048      0.001412      0.001412    
../lees/bucket/nilm/nilmdb/tests/aplotter.py.plot_double:311  1                0.000106      0.001346      0.001346    
..vl/lees/bucket/nilm/nilmdb/tests/aplotter.py.plot_data:201  1                0.000098      0.000672      0.000672    
..vl/lees/bucket/nilm/nilmdb/tests/aplotter.py.plot_line:241  16               0.000298      0.000496      0.000031    
..jim/devl/lees/bucket/nilm/nilmdb/nilmdb/printf.py.printf:4  17               0.000252      0.000334      0.000020    
..vl/lees/bucket/nilm/nilmdb/tests/aplotter.py.transposed:39  1                0.000229      0.000235      0.000235    
..vl/lees/bucket/nilm/nilmdb/tests/aplotter.py.y_reversed:45  1                0.000151      0.000174      0.000174    

name           tid              fname                      ttot      scnt
_MainThread           47269783682784        ..b/python2.7/threading.py.setprofile:88  64.746000     1