Results from trunk build on 64-bit Linux (Core 2 Duo)

Unpatched version
-----------------

--- With type 'object' ---
dict creation (shuffled):  1.19597601891
dict creation:             1.00639200211
dict lookup:               1.03957700729
set creation (shuffled):   0.862960100174
set creation:              0.777840852737
set lookup:                1.04500889778
set difference:            1.3444890976
--- With type 'UserClass' ---
dict creation (shuffled):  1.23222398758
dict creation:             1.1031870842
dict lookup:               0.817971944809
set creation (shuffled):   0.787939071655
set creation:              0.692412137985
set lookup:                0.842246055603
set difference:            1.09493112564

Exclusive or:  y ^= y >> 4
--------------------------

--- With type 'object' ---
dict creation (shuffled):  0.960464000702
dict creation:             0.758605957031
dict lookup:               0.835122108459
set creation (shuffled):   0.662832021713
set creation:              0.56110906601
set lookup:                0.868264913559
set difference:            0.883036851883
--- With type 'UserClass' ---
dict creation (shuffled):  1.18609285355
dict creation:             0.98405790329
dict lookup:               0.77793097496
set creation (shuffled):   0.759967088699
set creation:              0.635347127914
set lookup:                0.816239118576
set difference:            0.828205108643

Rotate:  y = y >> 4 | (y << 8*SIZEOF_VOIDP - 4)
-----------------------------------------------

--- With type 'object' ---
dict creation (shuffled):  0.855020046234
dict creation:             0.597592115402
dict lookup:               0.685823202133
set creation (shuffled):   0.564415931702
set creation:              0.414608001709
set lookup:                0.710626125336
set difference:            0.438966989517
--- With type 'UserClass' ---
dict creation (shuffled):  1.17696595192
dict creation:             0.915655136108
dict lookup:               0.693008184433
set creation (shuffled):   0.750666856766
set creation:              0.580994844437
set lookup:                0.729202985764
set difference:            0.686443090439