First SipHash benchmark

$ python3.3 perf.py -f -b 2n3,-chameleon ../cpython/x64/python ../hash/x64/python
[...]

Report on Linux hamiller 3.8.0-27-generic #40-Ubuntu SMP Tue Jul 9 00:17:05 UTC 2013 x86_64 x86_64
Total CPU cores: 8

### 2to3 ###
0.488000 -> 0.472000: 1.03x faster

### call_method ###
Min: 0.280396 -> 0.280592: 1.00x slower
Avg: 0.292607 -> 0.284713: 1.03x faster
Significant (t=2.36)
Stddev: 0.01175 -> 0.00542: 2.1665x smaller

### call_method_slots ###
Min: 0.284873 -> 0.284476: 1.00x faster
Avg: 0.288483 -> 0.294590: 1.02x slower
Significant (t=-2.27)
Stddev: 0.00697 -> 0.00772: 1.1084x larger

### call_method_unknown ###
Min: 0.266685 -> 0.278112: 1.04x slower
Avg: 0.273502 -> 0.281499: 1.03x slower
Significant (t=-4.44)
Stddev: 0.00648 -> 0.00261: 2.4843x smaller

### etree_generate ###
Min: 0.336064 -> 0.299522: 1.12x faster
Avg: 0.341641 -> 0.301084: 1.13x faster
Significant (t=17.88)
Stddev: 0.00483 -> 0.00154: 3.1362x smaller

### etree_iterparse ###
Min: 0.453683 -> 0.477531: 1.05x slower
Avg: 0.456345 -> 0.480136: 1.05x slower
Significant (t=-19.51)
Stddev: 0.00210 -> 0.00174: 1.2053x smaller

### fastunpickle ###
Min: 0.526357 -> 0.567355: 1.08x slower
Avg: 0.527903 -> 0.573242: 1.09x slower
Significant (t=-8.91)
Stddev: 0.00272 -> 0.01105: 4.0676x larger

### iterative_count ###
Min: 0.103896 -> 0.115809: 1.11x slower
Avg: 0.104954 -> 0.117171: 1.12x slower
Significant (t=-19.59)
Stddev: 0.00088 -> 0.00108: 1.2236x larger

### json_dump_v2 ###
Min: 2.855386 -> 2.759745: 1.03x faster
Avg: 2.888864 -> 2.779901: 1.04x faster
Significant (t=4.23)
Stddev: 0.04846 -> 0.03107: 1.5601x smaller

### json_load ###
Min: 0.416819 -> 0.502764: 1.21x slower
Avg: 0.424733 -> 0.514433: 1.21x slower
Significant (t=-20.32)
Stddev: 0.00507 -> 0.00847: 1.6684x larger

### mako_v2 ###
Min: 0.051098 -> 0.049652: 1.03x faster
Avg: 0.052695 -> 0.051404: 1.03x faster
Significant (t=6.64)
Stddev: 0.00092 -> 0.00103: 1.1187x larger

### meteor_contest ###
Min: 0.197542 -> 0.197731: 1.00x slower
Avg: 0.198585 -> 0.204320: 1.03x slower
Significant (t=-3.26)
Stddev: 0.00067 -> 0.00388: 5.7621x larger

### nbody ###
Min: 0.239810 -> 0.264352: 1.10x slower
Avg: 0.241739 -> 0.270510: 1.12x slower
Significant (t=-8.23)
Stddev: 0.00146 -> 0.00768: 5.2796x larger

### regex_compile ###
Min: 0.353408 -> 0.351624: 1.01x faster
Avg: 0.364376 -> 0.352377: 1.03x faster
Significant (t=2.53)
Stddev: 0.01059 -> 0.00074: 14.2721x smaller

### regex_effbot ###
Min: 0.056661 -> 0.057964: 1.02x slower
Avg: 0.057211 -> 0.059631: 1.04x slower
Significant (t=-4.39)
Stddev: 0.00045 -> 0.00115: 2.5302x larger

### silent_logging ###
Min: 0.068823 -> 0.073819: 1.07x slower
Avg: 0.069959 -> 0.075442: 1.08x slower
Significant (t=-9.53)
Stddev: 0.00088 -> 0.00093: 1.0590x larger

### threaded_count ###
Min: 0.343674 -> 0.110431: 3.11x faster
Avg: 0.405977 -> 0.174516: 2.33x faster
Significant (t=3.80)
Stddev: 0.04631 -> 0.12816: 2.7672x larger

### unpack_sequence ###
Min: 0.000042 -> 0.000048: 1.12x slower
Avg: 0.000044 -> 0.000049: 1.11x slower
Significant (t=-118.99)
Stddev: 0.00000 -> 0.00000: 1.1072x smaller

The following not significant results are hidden, use -v to show them:
call_simple, chaos, django_v2, etree_parse, etree_process, fannkuch, fastpickle, float, formatted_logging, go, mako, normal_startup, nqueens, pathlib, pidigits, raytrace, regex_v8, richards, simple_logging, spectral_norm, startup_nosite, telco.