fork: python
ref: 6fcac09401e336b25833
machine: linux-aarch64
commit hash: 6fcac09
commit date: 2025-08-23
overall geometric mean: 1.024x faster
HPT reliability: 99.95%
HPT 99th percentile: 1.01x faster
Memory change: 1.13x
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
311 ms: 1.01x slower
docutils
2.98 sec
3.08 sec: 1.03x slower
html5lib
65.1 ms
61.9 ms: 1.05x faster
Geometric mean
(ref)
1.00x 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_none
624 ms
371 ms: 1.68x faster
async_tree_memoization
777 ms
472 ms: 1.64x faster
async_tree_io
1.41 sec
884 ms: 1.60x faster
async_tree_memoization_tg
740 ms
465 ms: 1.59x faster
async_tree_io_tg
1.40 sec
897 ms: 1.57x faster
async_tree_none_tg
577 ms
371 ms: 1.55x faster
async_tree_cpu_io_mixed
912 ms
656 ms: 1.39x 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
81.8 ms: 1.13x faster
pidigits
233 ms
237 ms: 1.02x slower
nbody
105 ms
126 ms: 1.21x 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
3.92 ms: 1.18x faster
regex_dna
254 ms
220 ms: 1.16x faster
regex_compile
137 ms
122 ms: 1.13x faster
regex_v8
28.3 ms
25.9 ms: 1.10x faster
Geometric mean
(ref)
1.14x 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
tomli_loads
2.59 sec
2.30 sec: 1.13x faster
xml_etree_parse
195 ms
181 ms: 1.08x faster
xml_etree_iterparse
150 ms
144 ms: 1.04x faster
xml_etree_process
79.0 ms
76.1 ms: 1.04x faster
json_loads
30.7 us
32.5 us: 1.06x slower
unpickle_list
6.17 us
6.53 us: 1.06x slower
pickle_pure_python
365 us
391 us: 1.07x slower
pickle_list
5.25 us
5.77 us: 1.10x slower
pickle
13.4 us
15.4 us: 1.14x slower
Geometric mean
(ref)
1.01x slower
Benchmark hidden because not significant (5): unpickle_pure_python, xml_etree_generate, json_dumps, unpickle, pickle_dict
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
8.60 ms: 1.03x slower
python_startup
11.4 ms
15.2 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
django_template
40.7 ms
38.3 ms: 1.06x faster
genshi_xml
60.6 ms
62.9 ms: 1.04x slower
Geometric mean
(ref)
1.00x faster
Benchmark hidden because not significant (2): genshi_text, mako
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
1.66 sec: 2.06x faster
async_tree_none
624 ms
371 ms: 1.68x faster
async_tree_memoization
777 ms
472 ms: 1.64x faster
async_tree_io
1.41 sec
884 ms: 1.60x faster
async_tree_memoization_tg
740 ms
465 ms: 1.59x faster
async_tree_io_tg
1.40 sec
897 ms: 1.57x faster
async_tree_none_tg
577 ms
371 ms: 1.55x faster
async_tree_cpu_io_mixed
912 ms
656 ms: 1.39x faster
async_tree_cpu_io_mixed_tg
884 ms
644 ms: 1.37x faster
deepcopy_memo
49.6 us
36.4 us: 1.36x faster
deepcopy
446 us
335 us: 1.33x faster
generators
43.5 ms
35.7 ms: 1.22x faster
regex_effbot
4.64 ms
3.92 ms: 1.18x faster
regex_dna
254 ms
220 ms: 1.16x faster
deepcopy_reduce
4.10 us
3.57 us: 1.15x faster
comprehensions
25.4 us
22.2 us: 1.15x faster
richards_super
58.5 ms
51.3 ms: 1.14x faster
regex_compile
137 ms
122 ms: 1.13x faster
tomli_loads
2.59 sec
2.30 sec: 1.13x faster
logging_simple
7.63 us
6.77 us: 1.13x faster
float
92.1 ms
81.8 ms: 1.13x faster
logging_format
8.34 us
7.45 us: 1.12x faster
richards
50.9 ms
45.8 ms: 1.11x faster
pathlib
24.5 ms
22.3 ms: 1.10x faster
regex_v8
28.3 ms
25.9 ms: 1.10x faster
pylint
355 ms
328 ms: 1.08x faster
dulwich_log
62.0 ms
57.5 ms: 1.08x faster
xml_etree_parse
195 ms
181 ms: 1.08x faster
spectral_norm
131 ms
123 ms: 1.06x faster
django_template
40.7 ms
38.3 ms: 1.06x faster
raytrace
353 ms
333 ms: 1.06x faster
deltablue
4.12 ms
3.90 ms: 1.06x faster
pyflate
559 ms
530 ms: 1.05x faster
asyncio_tcp
566 ms
538 ms: 1.05x faster
html5lib
65.1 ms
61.9 ms: 1.05x faster
sympy_sum
154 ms
148 ms: 1.04x faster
xml_etree_iterparse
150 ms
144 ms: 1.04x faster
scimark_sor
150 ms
144 ms: 1.04x faster
xml_etree_process
79.0 ms
76.1 ms: 1.04x faster
go
157 ms
152 ms: 1.03x faster
async_generators
491 ms
481 ms: 1.02x faster
sqlite_synth
3.77 us
3.71 us: 1.02x faster
thrift
937 us
941 us: 1.00x slower
asyncio_tcp_ssl
2.19 sec
2.20 sec: 1.01x slower
2to3
308 ms
311 ms: 1.01x slower
asyncio_websockets
658 ms
669 ms: 1.02x slower
nqueens
99.2 ms
101 ms: 1.02x slower
pidigits
233 ms
237 ms: 1.02x slower
coroutines
29.0 ms
29.7 ms: 1.02x slower
json
5.54 ms
5.68 ms: 1.03x slower
python_startup_no_site
8.37 ms
8.60 ms: 1.03x slower
docutils
2.98 sec
3.08 sec: 1.03x slower
genshi_xml
60.6 ms
62.9 ms: 1.04x slower
bench_thread_pool
1.31 ms
1.36 ms: 1.04x slower
fannkuch
443 ms
464 ms: 1.05x slower
crypto_pyaes
86.6 ms
90.6 ms: 1.05x slower
json_loads
30.7 us
32.5 us: 1.06x slower
unpickle_list
6.17 us
6.53 us: 1.06x slower
pycparser
1.26 sec
1.34 sec: 1.07x slower
hexiom
6.98 ms
7.45 ms: 1.07x slower
pickle_pure_python
365 us
391 us: 1.07x slower
sympy_expand
454 ms
488 ms: 1.08x slower
pickle_list
5.25 us
5.77 us: 1.10x slower
typing_runtime_protocols
181 us
204 us: 1.13x slower
pickle
13.4 us
15.4 us: 1.14x slower
pprint_safe_repr
916 ms
1.08 sec: 1.18x slower
scimark_sparse_mat_mult
6.19 ms
7.32 ms: 1.18x slower
coverage
87.3 ms
104 ms: 1.19x slower
pprint_pformat
1.88 sec
2.27 sec: 1.21x slower
nbody
105 ms
126 ms: 1.21x slower
python_startup
11.4 ms
15.2 ms: 1.33x slower
gc_traversal
4.40 ms
6.82 ms: 1.55x slower
create_gc_cycles
1.92 ms
3.89 ms: 2.03x slower
telco
8.51 ms
163 ms: 19.18x slower
bench_mp_pool
7.05 ms
3.18 sec: 450.34x slower
Geometric mean
(ref)
1.06x slower
Benchmark hidden because not significant (15): unpickle_pure_python, xml_etree_generate, scimark_monte_carlo, sympy_integrate, chaos, scimark_fft, scimark_lu, json_dumps, unpickle, genshi_text, meteor_contest, mako, sympy_str, logging_silent, pickle_dict
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-JIT/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): 1.024x faster
Reliability score: 99.95% 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 1.01x