Application benchmarks

CPU: Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz · 4 logical CPUs
OS: Linux-6.17.0-1022-azure-x86_64-with-glibc2.39
Samples: 10
Parallel jobs: 1
Run duration: 16m 37s

Measurement details

Repeated warmups: 3
Timing: Median ms · one-shot / repeated · startup excluded
RSS: Median MiB · separate one-shot processes including startup
Startup: Empty -c command · launch through exit · normal defaults
Sort: Percentage advantage vs chart reference · largest improvement first; click headers to reorder

Monty 1.1.0 · @main: Monty 1.1.0 · Python 3.14: CPython 3.14.8 · Python 3.15: CPython 3.15.0 · PyPy 8.0.0

Runtimes and build details

monty · monty · 1.1.0
/home/runner/work/flying-circus/flying-circus/_runtimes/monty/bin/monty
Prebuilt PyPI wheel: pydantic-monty-runtime==1.1.0; source revision and compiler flags unverified
c9d19e7256886558c67678582d0d223de3eb05232f69da9da657ab9e090f3f35

monty-main · monty · c3045d5435859e5d679e9e427b98a1bc28c13877
/home/runner/work/flying-circus/flying-circus/_runtimes/monty-main/bin/monty
Source build: https://github.com/pydantic/monty@c3045d5435859e5d679e9e427b98a1bc28c13877; cargo build --locked --release -p monty-runtime --bin monty; rustc 1.99.0 (b940084d7 2026-09-28)
094622d93c3cad3d325dcdf7df5f725a0206d781aab74b58e7f86867741143a8

python3.14 · cpython · Python 3.14.8
/opt/hostedtoolcache/Python/3.14.8/x64/bin/python3.14
Source revision and compiler flags unverified
a5230d8adbd26c2185d77fb003597c4ee9c44c2369fc179122ff7c3a3a58ae59

python3.15 · cpython · Python 3.15.0
/opt/hostedtoolcache/Python/3.15.0/x64/bin/python3.15
Source revision and compiler flags unverified
fd580ad81787ecc7e71f91543dbe52ffccd3e5c4cf286565eceb539081e85992

pypy · pypy · Python 3.11.16 (78565394c9b5, Sep 18 2026, 08:00:14) [PyPy 8.0.0 with GCC 14.2.1 20250110 (Red Hat 14.2.1-11)]
/opt/hostedtoolcache/PyPy/3.11.16/x64/bin/pypy3.11
Source revision and compiler flags unverified
7aebd6513a8f1dc8529abecf80d25b66951ddb5e9bab14b2750a7dab7947a94d

Chart baseline

Process startup · ms

Monty	@main	Python 3.14	Python 3.15	PyPy
1.65	1.48	11.6	11.7	21.6

Runtime · ms · one-shot / repeated

Bars: Python 3.14 = midpoint · blue above = faster, red below = slower · shared asinh scale (5% transition)

Workload	Monty	@main	Python 3.14	Python 3.15	PyPy
game_nbody	568 / 566	543 / 545	119 / 123	125 / 123	22.9 / 19.1
portfolio_risk	99.8 / 100	86.9 / 86.7	82.1 / 82.1	87.6 / 87.8	18.9 / 14.9
game_fannkuch	n/a	n/a	464 / 468	443 / 446	92.2 / 93.1
game_spectral_norm	497 / 498	436 / 437	121 / 120	119 / 119	28.0 / 24.5
capacity_planning	53.8 / 52.5	50.4 / 49.1	18.2 / 16.8	15.7 / 14.3	4.29 / 4.36
expense_report	0.42 / 0.34	0.46 / 0.36	1.75 / 0.52	1.72 / 0.54	0.42 / 0.56
api_report	0.84 / 0.56	0.90 / 0.59	1.79 / 0.63	1.77 / 0.60	0.47 / 0.63
perf_float	340 / 322	392 / 353	87.7 / 83.1	88.7 / 85.4	25.3 / 21.9
order_cleanup	0.50 / 0.43	0.55 / 0.45	1.79 / 0.57	1.79 / 0.67	0.48 / 0.64
perf_json_loads	1.56 / 1.28	1.78 / 1.36	3.31 / 2.00	3.30 / 2.05	1.26 / 1.41
text_json_parse_medium	13.3 / 11.4	14.4 / 12.4	15.8 / 14.4	15.3 / 14.3	6.65 / 7.37
stdout_lines	3.21 / 3.29	3.09 / 3.66	6.47 / 4.74	6.49 / 5.32	6.08 / 5.60
perf_barnes_hut	5310 / 5320	5730 / 5740	1050 / 1070	1060 / 1070	519 / 552
game_regex_dna	n/a	n/a	293 / 286	313 / 309	219 / 163
memory_customer_records	493 / 441	498 / 455	249 / 258	282 / 283	142 / 159
memory_string_list_short	285 / 257	265 / 239	147 / 139	161 / 156	87.8 / 103
perf_json_dumps	13.0 / 11.9	14.0 / 13.0	20.3 / 19.1	18.5 / 17.1	25.9 / 17.7
text_json_transform_medium	16.8 / 14.9	17.6 / 15.7	17.0 / 16.3	17.1 / 15.7	11.0 / 12.0
memory_string_list_long	382 / 343	363 / 342	157 / 149	172 / 167	107 / 127
text_json_lines_medium	18.3 / 18.1	19.7 / 19.2	25.9 / 25.0	25.8 / 25.6	19.3 / 19.4
text_csv_aggregate_medium	510 / 506	529 / 529	117 / 112	123 / 116	89.2 / 84.4
game_meteor_contest	n/a	n/a	118 / 118	119 / 117	99.0 / 92.8
text_json_lines_small	0.93 / 0.68	0.93 / 0.69	0.74 / 0.79	0.74 / 0.75	0.98 / 0.85
game_pidigits	n/a	n/a	205 / 204	204 / 204	182 / 178
text_csv_cleanup_medium	1020 / 1010	1060 / 1040	221 / 219	228 / 222	196 / 191
text_csv_cleanup_small	10.2 / 10.0	10.6 / 11.3	3.21 / 3.70	3.33 / 3.28	18.7 / 14.3
memory_string_index_short	141 / 136	143 / 133	109 / 102	121 / 118	109 / 91.2
text_line_logs_small	0.55 / 0.49	0.54 / 0.48	0.49 / 0.54	0.50 / 0.60	0.87 / 0.67
text_json_transform_small	0.86 / 0.62	0.92 / 0.66	0.63 / 0.65	0.62 / 0.68	0.78 / 0.69
memory_string_index_long	199 / 182	197 / 185	122 / 113	134 / 128	131 / 112
text_json_parse_small	0.72 / 0.52	0.76 / 0.53	0.43 / 0.44	0.44 / 0.47	0.60 / 0.60
text_line_logs_medium	21.3 / 21.1	22.1 / 20.5	13.0 / 12.0	13.3 / 12.6	16.7 / 16.1
text_csv_aggregate_small	5.56 / 5.31	5.71 / 5.58	2.16 / 2.19	2.23 / 2.35	8.38 / 7.88
text_regex_logs_medium	34.0 / 32.9	32.7 / 30.7	22.5 / 22.3	23.9 / 23.3	29.1 / 24.1
ticket_search	34.5 / 34.1	34.5 / 34.3	13.0 / 10.9	13.6 / 11.8	23.5 / 19.4
text_regex_logs_small	1.33 / 0.98	1.35 / 0.95	0.81 / 0.70	0.86 / 0.77	2.36 / 1.03
perf_unpack_sequence	331 / 334	331 / 337	23.1 / 21.0	24.4 / 22.2	57.7 / 54.1

Peak RSS · MiB · one-shot

Bars: Python 3.14 = midpoint · blue above = less memory, red below = more memory · shared asinh scale (5% transition)

Workload	Monty	@main	Python 3.14	Python 3.15	PyPy
text_json_transform_medium	24.4	24.4	24.4	24.3	160
stdout_lines	20.0	20.1	20.1	20.0	70.6
order_cleanup	19.9	20.0	20.1	20.0	67.1
text_json_transform_small	19.9	20.0	20.1	20.1	69.1
game_regex_dna	n/a	n/a	20.1	20.0	111
text_csv_aggregate_small	20.1	20.1	20.1	20.0	73.8
text_line_logs_medium	24.3	24.3	24.4	24.4	154
game_pidigits	n/a	n/a	20.1	20.0	80.0
text_csv_cleanup_small	20.0	20.1	20.0	19.9	79.2
expense_report	20.0	19.9	20.0	20.0	67.1
text_json_lines_medium	24.8	24.8	24.9	24.8	161
text_regex_logs_small	20.0	20.0	20.0	19.9	69.4
ticket_search	20.0	20.0	20.0	20.0	79.7
capacity_planning	19.9	20.0	20.0	20.1	71.5
perf_json_loads	20.0	20.0	20.0	20.0	67.1
text_json_lines_small	20.0	20.0	20.0	20.1	69.1
text_json_parse_small	20.1	20.0	20.1	20.0	69.1
text_regex_logs_medium	22.3	22.2	22.2	22.2	173
portfolio_risk	20.1	20.0	20.1	20.1	78.5
perf_barnes_hut	20.0	20.1	20.1	20.0	90.5
perf_unpack_sequence	20.0	20.0	20.0	20.0	78.9
game_spectral_norm	20.0	20.0	20.0	20.1	78.9
game_meteor_contest	n/a	n/a	20.1	20.1	80.3
api_report	20.0	20.0	20.0	20.1	67.1
game_nbody	20.1	20.1	20.1	20.1	78.6
game_fannkuch	n/a	n/a	20.1	20.1	78.5
text_json_parse_medium	24.4	24.4	24.3	24.3	160
text_line_logs_small	20.1	20.0	20.0	20.1	69.2
perf_json_dumps	20.0	20.0	20.0	20.0	79.1
memory_customer_records	156	157	67.4	68.1	152
memory_string_list_long	113	112	69.1	69.8	145
memory_string_index_long	67.5	67.7	53.3	54.0	141
memory_string_index_short	55.9	56.3	41.7	42.3	126
memory_string_list_short	89.4	89.8	45.9	46.6	113
text_csv_cleanup_medium	49.8	49.5	33.1	33.9	176
perf_float	57.9	57.3	28.3	29.3	84.6
text_csv_aggregate_medium	42.1	41.9	27.3	28.3	168