fork: python
ref: 6fcac09401e336b25833
machine: linux-aarch64
commit hash: 6fcac09
commit date: 2025-08-23
overall geometric mean: 1.036x faster
HPT reliability: 100.00%
HPT 99th percentile: 1.02x faster
Memory change: 1.11x
Benchmarks with tag 'apps':
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
2to3
308 ms
299 ms: 1.03x faster
docutils
2.98 sec
2.95 sec: 1.01x faster
html5lib
65.1 ms
60.4 ms: 1.08x faster
Geometric mean
(ref)
1.04x faster
Benchmarks with tag 'asyncio':
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
async_tree_memoization
777 ms
463 ms: 1.68x faster
async_tree_none
624 ms
383 ms: 1.63x faster
async_tree_io
1.41 sec
871 ms: 1.62x faster
async_tree_memoization_tg
740 ms
460 ms: 1.61x faster
async_tree_io_tg
1.40 sec
892 ms: 1.57x faster
async_tree_none_tg
577 ms
370 ms: 1.56x faster
async_tree_cpu_io_mixed
912 ms
653 ms: 1.40x faster
async_tree_cpu_io_mixed_tg
884 ms
644 ms: 1.37x faster
Geometric mean
(ref)
1.55x faster
Benchmarks with tag 'math':
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
float
92.1 ms
84.9 ms: 1.08x faster
pidigits
233 ms
236 ms: 1.02x slower
nbody
105 ms
122 ms: 1.17x slower
Geometric mean
(ref)
1.03x slower
Benchmarks with tag 'regex':
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
regex_effbot
4.64 ms
3.74 ms: 1.24x faster
regex_dna
254 ms
222 ms: 1.14x faster
regex_compile
137 ms
123 ms: 1.12x faster
regex_v8
28.3 ms
27.2 ms: 1.04x faster
Geometric mean
(ref)
1.13x faster
Benchmarks with tag 'serialize':
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
xml_etree_parse
195 ms
182 ms: 1.07x faster
tomli_loads
2.59 sec
2.44 sec: 1.06x faster
xml_etree_iterparse
150 ms
143 ms: 1.05x faster
xml_etree_process
79.0 ms
79.8 ms: 1.01x slower
unpickle_list
6.17 us
6.44 us: 1.04x slower
pickle_pure_python
365 us
381 us: 1.04x slower
pickle_list
5.25 us
5.56 us: 1.06x slower
json_loads
30.7 us
33.0 us: 1.07x slower
pickle
13.4 us
15.7 us: 1.17x slower
Geometric mean
(ref)
1.02x slower
Benchmark hidden because not significant (5): json_dumps, xml_etree_generate, unpickle, pickle_dict, unpickle_pure_python
Benchmarks with tag 'startup':
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
python_startup_no_site
8.37 ms
8.57 ms: 1.02x slower
python_startup
11.4 ms
15.1 ms: 1.33x slower
Geometric mean
(ref)
1.17x slower
Benchmarks with tag 'template':
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
genshi_xml
60.6 ms
59.5 ms: 1.02x faster
mako
12.9 ms
13.8 ms: 1.07x slower
Geometric mean
(ref)
1.00x faster
Benchmark hidden because not significant (2): django_template, genshi_text
Benchmark
bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0
bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09
mdp
3.41 sec
1.67 sec: 2.05x faster
async_tree_memoization
777 ms
463 ms: 1.68x faster
async_tree_none
624 ms
383 ms: 1.63x faster
async_tree_io
1.41 sec
871 ms: 1.62x faster
async_tree_memoization_tg
740 ms
460 ms: 1.61x faster
async_tree_io_tg
1.40 sec
892 ms: 1.57x faster
async_tree_none_tg
577 ms
370 ms: 1.56x faster
async_tree_cpu_io_mixed
912 ms
653 ms: 1.40x faster
deepcopy_memo
49.6 us
36.2 us: 1.37x faster
async_tree_cpu_io_mixed_tg
884 ms
644 ms: 1.37x faster
deepcopy
446 us
329 us: 1.36x faster
comprehensions
25.4 us
20.2 us: 1.26x faster
regex_effbot
4.64 ms
3.74 ms: 1.24x faster
go
157 ms
127 ms: 1.24x faster
generators
43.5 ms
36.0 ms: 1.21x faster
dulwich_log
62.0 ms
52.7 ms: 1.18x faster
logging_simple
7.63 us
6.59 us: 1.16x faster
regex_dna
254 ms
222 ms: 1.14x faster
logging_format
8.34 us
7.29 us: 1.14x faster
pathlib
24.5 ms
21.6 ms: 1.14x faster
pylint
355 ms
313 ms: 1.13x faster
deepcopy_reduce
4.10 us
3.66 us: 1.12x faster
regex_compile
137 ms
123 ms: 1.12x faster
float
92.1 ms
84.9 ms: 1.08x faster
raytrace
353 ms
327 ms: 1.08x faster
html5lib
65.1 ms
60.4 ms: 1.08x faster
xml_etree_parse
195 ms
182 ms: 1.07x faster
spectral_norm
131 ms
122 ms: 1.07x faster
async_generators
491 ms
458 ms: 1.07x faster
tomli_loads
2.59 sec
2.44 sec: 1.06x faster
pyflate
559 ms
527 ms: 1.06x faster
sympy_integrate
21.6 ms
20.5 ms: 1.06x faster
scimark_monte_carlo
85.1 ms
80.6 ms: 1.06x faster
xml_etree_iterparse
150 ms
143 ms: 1.05x faster
scimark_sor
150 ms
143 ms: 1.05x faster
sympy_str
280 ms
267 ms: 1.05x faster
asyncio_tcp
566 ms
542 ms: 1.05x faster
regex_v8
28.3 ms
27.2 ms: 1.04x faster
meteor_contest
112 ms
108 ms: 1.04x faster
2to3
308 ms
299 ms: 1.03x faster
genshi_xml
60.6 ms
59.5 ms: 1.02x faster
docutils
2.98 sec
2.95 sec: 1.01x faster
xml_etree_process
79.0 ms
79.8 ms: 1.01x slower
coroutines
29.0 ms
29.4 ms: 1.01x slower
pidigits
233 ms
236 ms: 1.02x slower
bench_thread_pool
1.31 ms
1.33 ms: 1.02x slower
sqlite_synth
3.77 us
3.84 us: 1.02x slower
python_startup_no_site
8.37 ms
8.57 ms: 1.02x slower
scimark_fft
418 ms
430 ms: 1.03x slower
json
5.54 ms
5.76 ms: 1.04x slower
unpickle_list
6.17 us
6.44 us: 1.04x slower
pickle_pure_python
365 us
381 us: 1.04x slower
logging_silent
127 ns
133 ns: 1.05x slower
fannkuch
443 ms
467 ms: 1.05x slower
pickle_list
5.25 us
5.56 us: 1.06x slower
mako
12.9 ms
13.8 ms: 1.07x slower
json_loads
30.7 us
33.0 us: 1.07x slower
typing_runtime_protocols
181 us
197 us: 1.09x slower
scimark_sparse_mat_mult
6.19 ms
7.08 ms: 1.14x slower
nbody
105 ms
122 ms: 1.17x slower
pickle
13.4 us
15.7 us: 1.17x slower
coverage
87.3 ms
104 ms: 1.19x slower
python_startup
11.4 ms
15.1 ms: 1.33x slower
gc_traversal
4.40 ms
6.97 ms: 1.59x slower
create_gc_cycles
1.92 ms
3.79 ms: 1.97x slower
telco
8.51 ms
166 ms: 19.54x slower
bench_mp_pool
7.05 ms
5.43 sec: 770.27x slower
Geometric mean
(ref)
1.05x slower
Benchmark hidden because not significant (23): sympy_sum, chaos, django_template, deltablue, genshi_text, crypto_pyaes, nqueens, json_dumps, hexiom, pprint_pformat, xml_etree_generate, pycparser, asyncio_tcp_ssl, pprint_safe_repr, unpickle, sympy_expand, asyncio_websockets, pickle_dict, richards_super, unpickle_pure_python, scimark_lu, thrift, richards
Ignored benchmarks (12) of results/bm-20231002-3.12.0-0fb18b0/bm-20231002-arminc-aarch64-python-0fb18b02c8ad56299d6a-3.12.0-0fb18b0.json: aiohttp, chameleon, dask, gunicorn, mypy2, sqlalchemy_declarative, sqlalchemy_imperative, sqlglot_normalize, sqlglot_optimize, sqlglot_parse, sqlglot_transpile, tornado_http
Ignored benchmarks (13) of results/bm-20250823-3.15.0a0-6fcac09/bm-20250823-arminc-aarch64-python-6fcac09401e336b25833-3.15.0a0-6fcac09.json: bpe_tokeniser, connected_components, djangocms, k_core, many_optionals, shortest_path, sphinx, sqlglot_v2_normalize, sqlglot_v2_optimize, sqlglot_v2_parse, sqlglot_v2_transpile, subparsers, unpack_sequence
Geometric mean (including insignificant results): 1.036x faster
Reliability score: 100.00% likely to be faster
90% likely to have a speedup of 1.03x
95% likely to have a speedup of 1.03x
99% likely to have a speedup of 1.02x