Application benchmarks

CPU: Intel(R) Xeon(R) 6973P-C · 4 logical CPUs
OS: Linux-6.17.0-1022-azure-x86_64-with-glibc2.39
Samples: 10
Parallel jobs: 1
Run duration: 11m 43s

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 3.15: 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 · 2bb9f08a3946bd4feb5893e1db9022d0292ea2f9
/home/runner/work/flying-circus/flying-circus/_runtimes/monty-main/bin/monty
Source build: https://github.com/pydantic/monty@2bb9f08a3946bd4feb5893e1db9022d0292ea2f9; cargo build --locked --release -p monty-runtime --bin monty; rustc 1.99.1 (58cf8f9c3 2026-10-13)
33ada88963bdf1d478e5f78d8658b52bb6b6500b95515ebd7398ef85206108ee

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 3.15	PyPy
1.18	1.15	9.37	16.5

Runtime · ms · one-shot / repeated

Bars: Python 3.15 = midpoint · blue above = faster, red below = slower · shared asinh scale (5% transition)

Workload	Monty	@main	Python 3.15	PyPy
game_nbody	435 / 435	317 / 335	84.9 / 84.2	14.0 / 13.5
portfolio_risk	81.5 / 81.4	72.4 / 72.0	58.6 / 58.7	12.7 / 10.7
perf_float	271 / 255	284 / 266	65.9 / 62.4	15.2 / 13.6
expense_report	0.40 / 0.34	0.46 / 0.42	1.31 / 0.47	0.31 / 0.52
game_fannkuch	n/a	1400 / 1410	294 / 296	98.5 / 70.9
game_spectral_norm	396 / 402	304 / 304	81.0 / 80.8	23.3 / 20.3
api_report	0.75 / 0.54	0.84 / 0.54	1.38 / 0.55	0.37 / 0.65
order_cleanup	0.46 / 0.44	0.53 / 0.49	1.33 / 0.52	0.39 / 0.79
capacity_planning	43.6 / 42.8	42.7 / 41.5	11.1 / 10.1	3.37 / 3.60
perf_json_loads	1.36 / 1.12	1.47 / 1.16	2.41 / 1.59	0.88 / 1.21
stdout_lines	2.42 / 2.23	2.63 / 2.55	4.84 / 3.55	4.60 / 4.12
text_json_parse_medium	11.1 / 9.14	11.7 / 9.97	10.8 / 9.88	6.09 / 6.50
perf_barnes_hut	4140 / 4170	3980 / 4060	764 / 763	515 / 493
memory_customer_records	428 / 402	410 / 371	174 / 183	168 / 132
memory_string_list_short	223 / 200	204 / 179	103 / 97.1	75.6 / 77.0
game_regex_dna	n/a	failed / failed	231 / 225	224 / 166
memory_string_list_long	293 / 272	261 / 227	110 / 105	86.4 / 102
perf_json_dumps	9.77 / 8.52	10.9 / 9.72	12.3 / 10.8	17.2 / 12.1
text_json_lines_medium	13.3 / 13.1	14.3 / 14.7	16.8 / 16.2	15.3 / 14.3
text_csv_aggregate_medium	409 / 392	418 / 404	87.2 / 83.6	80.1 / 66.7
memory_string_index_short	110 / 97.3	109 / 103	81.1 / 70.5	79.2 / 58.0
text_json_transform_medium	13.6 / 11.4	14.4 / 12.2	11.8 / 11.0	10.0 / 9.17
game_meteor_contest	n/a	347 / 345	88.9 / 86.9	93.3 / 76.5
memory_string_index_long	151 / 122	142 / 119	88.8 / 80.7	89.3 / 75.1
text_json_lines_small	0.78 / 0.58	0.84 / 0.64	0.57 / 0.58	0.83 / 0.71
text_line_logs_small	0.46 / 0.44	0.46 / 0.47	0.41 / 0.42	0.73 / 0.58
game_pidigits	n/a	n/a	148 / 147	179 / 162
text_json_parse_small	0.63 / 0.51	0.68 / 0.51	0.36 / 0.45	0.55 / 0.50
text_json_transform_small	0.76 / 0.63	0.83 / 0.62	0.48 / 0.53	0.70 / 0.66
text_csv_cleanup_medium	784 / 773	821 / 813	162 / 161	228 / 195
text_regex_logs_medium	24.4 / 23.5	22.8 / 22.1	15.4 / 15.0	36.7 / 24.6
text_line_logs_medium	16.3 / 15.9	14.2 / 14.1	8.56 / 8.01	14.4 / 12.0
text_regex_logs_small	1.15 / 0.89	1.22 / 0.89	0.61 / 0.55	1.78 / 1.07
ticket_search	26.2 / 25.3	22.9 / 22.2	9.96 / 7.75	16.3 / 15.5
text_csv_aggregate_small	4.36 / 4.19	4.72 / 4.36	1.64 / 1.75	6.35 / 6.13
perf_unpack_sequence	246 / 249	71.2 / 69.7	17.3 / 15.4	46.4 / 40.5
text_csv_cleanup_small	7.92 / 7.87	8.24 / 8.22	2.40 / 2.51	11.4 / 11.3

Peak RSS · MiB · one-shot

Bars: Python 3.15 = midpoint · blue above = less memory, red below = more memory · shared asinh scale (5% transition)

Workload	Monty	@main	Python 3.15	PyPy
text_line_logs_medium	24.3	24.2	24.4	242
text_regex_logs_medium	22.2	22.3	22.3	323
text_json_transform_small	19.9	20.0	20.1	69.1
perf_json_dumps	20.0	20.0	20.1	92.4
game_meteor_contest	n/a	20.0	20.1	241
stdout_lines	20.1	20.0	20.1	70.6
game_fannkuch	n/a	20.0	20.0	294
text_json_transform_medium	24.4	24.3	24.4	228
perf_json_loads	20.0	20.0	20.0	67.1
text_json_lines_small	20.1	20.0	20.1	69.1
text_json_parse_small	20.1	20.0	20.1	69.1
text_json_lines_medium	24.9	24.8	24.8	238
capacity_planning	20.0	20.1	20.1	71.4
ticket_search	20.0	20.0	20.0	84.9
portfolio_risk	20.0	20.1	20.1	93.8
text_regex_logs_small	20.1	20.1	20.1	69.3
api_report	20.0	20.1	20.0	67.1
perf_unpack_sequence	20.0	20.0	20.0	138
expense_report	20.0	20.0	20.0	67.1
text_csv_aggregate_small	20.0	20.0	20.0	73.7
order_cleanup	20.0	20.0	20.0	67.1
text_json_parse_medium	24.4	24.4	24.3	222
perf_barnes_hut	20.1	20.1	20.0	300
text_line_logs_small	20.0	20.0	19.9	69.1
text_csv_cleanup_small	20.1	20.1	20.0	80.2
game_spectral_norm	20.1	20.1	20.0	114
game_nbody	20.1	20.0	19.9	77.9
memory_string_index_long	67.7	68.0	54.0	236
memory_string_index_short	56.0	56.4	42.4	210
text_csv_cleanup_medium	49.9	49.4	33.9	397
text_csv_aggregate_medium	42.3	42.1	28.1	359
memory_string_list_long	113	113	69.8	324
memory_string_list_short	89.6	89.6	46.6	270
perf_float	57.6	57.8	29.4	93.7
memory_customer_records	157	157	68.1	373
game_pidigits	n/a	n/a	20.0	295
game_regex_dna	n/a	failed	20.1	328