+-------------------------+---------------+-----------------------------+
| Benchmark               | obmalloc_base | obmalloc_radix              |
+=========================+===============+=============================+
| chaos                   | 109 ms        | 110 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| crypto_pyaes            | 116 ms        | 117 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| dulwich_log             | 77.3 ms       | 78.6 ms: 1.02x slower (+2%) |
+-------------------------+---------------+-----------------------------+
| fannkuch                | 457 ms        | 454 ms: 1.01x faster (-1%)  |
+-------------------------+---------------+-----------------------------+
| float                   | 120 ms        | 119 ms: 1.00x faster (-0%)  |
+-------------------------+---------------+-----------------------------+
| go                      | 249 ms        | 253 ms: 1.02x slower (+2%)  |
+-------------------------+---------------+-----------------------------+
| hexiom                  | 9.55 ms       | 9.75 ms: 1.02x slower (+2%) |
+-------------------------+---------------+-----------------------------+
| html5lib                | 92.7 ms       | 94.5 ms: 1.02x slower (+2%) |
+-------------------------+---------------+-----------------------------+
| json_dumps              | 11.3 ms       | 11.4 ms: 1.01x slower (+1%) |
+-------------------------+---------------+-----------------------------+
| json_loads              | 25.7 us       | 24.7 us: 1.04x faster (-4%) |
+-------------------------+---------------+-----------------------------+
| logging_simple          | 8.62 us       | 8.84 us: 1.03x slower (+3%) |
+-------------------------+---------------+-----------------------------+
| meteor_contest          | 98.4 ms       | 97.8 ms: 1.01x faster (-1%) |
+-------------------------+---------------+-----------------------------+
| pathlib                 | 18.9 ms       | 19.1 ms: 1.01x slower (+1%) |
+-------------------------+---------------+-----------------------------+
| pickle                  | 8.94 us       | 9.01 us: 1.01x slower (+1%) |
+-------------------------+---------------+-----------------------------+
| pickle_list             | 2.77 us       | 2.74 us: 1.01x faster (-1%) |
+-------------------------+---------------+-----------------------------+
| pidigits                | 183 ms        | 184 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| python_startup          | 7.82 ms       | 7.85 ms: 1.00x slower (+0%) |
+-------------------------+---------------+-----------------------------+
| python_startup_no_site  | 5.35 ms       | 5.38 ms: 1.00x slower (+0%) |
+-------------------------+---------------+-----------------------------+
| raytrace                | 497 ms        | 505 ms: 1.02x slower (+2%)  |
+-------------------------+---------------+-----------------------------+
| regex_compile           | 168 ms        | 170 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| regex_dna               | 170 ms        | 173 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| regex_effbot            | 2.72 ms       | 2.85 ms: 1.05x slower (+5%) |
+-------------------------+---------------+-----------------------------+
| regex_v8                | 21.5 ms       | 21.4 ms: 1.01x faster (-1%) |
+-------------------------+---------------+-----------------------------+
| richards                | 68.3 ms       | 67.4 ms: 1.01x faster (-1%) |
+-------------------------+---------------+-----------------------------+
| scimark_lu              | 151 ms        | 155 ms: 1.02x slower (+2%)  |
+-------------------------+---------------+-----------------------------+
| scimark_monte_carlo     | 103 ms        | 104 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| scimark_sparse_mat_mult | 4.67 ms       | 4.54 ms: 1.03x faster (-3%) |
+-------------------------+---------------+-----------------------------+
| spectral_norm           | 132 ms        | 135 ms: 1.02x slower (+2%)  |
+-------------------------+---------------+-----------------------------+
| sqlalchemy_declarative  | 160 ms        | 161 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| sqlalchemy_imperative   | 30.6 ms       | 31.1 ms: 1.02x slower (+2%) |
+-------------------------+---------------+-----------------------------+
| sympy_expand            | 412 ms        | 416 ms: 1.01x slower (+1%)  |
+-------------------------+---------------+-----------------------------+
| sympy_sum               | 90.2 ms       | 90.5 ms: 1.00x slower (+0%) |
+-------------------------+---------------+-----------------------------+
| telco                   | 6.82 ms       | 6.88 ms: 1.01x slower (+1%) |
+-------------------------+---------------+-----------------------------+
| tornado_http            | 179 ms        | 182 ms: 1.02x slower (+2%)  |
+-------------------------+---------------+-----------------------------+
| unpickle_list           | 3.64 us       | 3.75 us: 1.03x slower (+3%) |
+-------------------------+---------------+-----------------------------+
| xml_etree_parse         | 151 ms        | 154 ms: 1.02x slower (+2%)  |
+-------------------------+---------------+-----------------------------+
| xml_etree_generate      | 93.2 ms       | 94.1 ms: 1.01x slower (+1%) |
+-------------------------+---------------+-----------------------------+

Not significant (20): 2to3; deltablue; django_template; logging_format; logging_silent; mako; nbody; nqueens; pickle_dict; pickle_pure_python; scimark_fft; scimark_sor; sqlite_synth; sympy_integrate; sympy_str; unpack_sequence; unpickle; unpickle_pure_python; xml_etree_iterparse; xml_etree_process