Application benchmarks

CPU: AMD EPYC 7763 64-Core Processor · 4 logical CPUs
OS: Linux-6.17.0-1022-azure-x86_64-with-glibc2.39
Samples: 20
Parallel jobs: 1
Run duration: 18m 36s

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 · CPython 3.14.8 · 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

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

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

Process startup · ms

Monty	CPython	PyPy
1.87	13.1	24.8

Runtime · ms · one-shot / repeated

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

Workload	Monty	CPython	PyPy
game_nbody	793 / 797	143 / 143	19.3 / 18.9
portfolio_risk	152 / 152	84.2 / 83.1	12.5 / 13.0
game_spectral_norm	708 / 710	135 / 134	22.8 / 22.1
game_fannkuch	n/a	490 / 484	87.7 / 87.0
capacity_planning	77.8 / 76.0	21.6 / 19.6	4.38 / 4.43
expense_report	0.40 / 0.34	1.87 / 0.54	0.44 / 0.53
order_cleanup	0.48 / 0.37	1.94 / 0.62	0.51 / 0.62
api_report	0.82 / 0.47	1.93 / 0.63	0.48 / 0.66
perf_float	385 / 346	95.0 / 88.3	24.5 / 22.1
perf_json_loads	1.60 / 1.19	3.69 / 2.17	1.26 / 1.39
game_regex_dna	n/a	317 / 310	217 / 147
perf_barnes_hut	6980 / 6980	1270 / 1260	712 / 617
memory_string_list_short	327 / 280	154 / 145	83.5 / 168
stdout_lines	3.65 / 3.80	6.68 / 4.90	6.53 / 4.91
text_csv_aggregate_medium	591 / 571	137 / 132	96.6 / 78.0
perf_json_dumps	14.1 / 11.8	21.6 / 19.4	23.7 / 17.6
text_json_parse_medium	15.0 / 10.9	17.1 / 15.1	10.6 / 11.5
perf_gc_traversal	n/a	22.2 / 20.6	14.2 / 1560
memory_customer_records	618 / 565	257 / 251	201 / 168
text_json_lines_medium	21.0 / 20.1	27.8 / 26.7	18.8 / 18.3
text_json_transform_small	0.89 / 0.52	0.70 / 0.74	0.54 / 0.65
game_meteor_contest	n/a	123 / 120	91.2 / 85.6
text_csv_cleanup_medium	1150 / 1130	256 / 255	195 / 183
memory_string_list_long	444 / 404	165 / 155	120 / 161
memory_string_index_short	150 / 123	105 / 95.5	106 / 69.3
memory_string_index_long	216 / 178	116 / 108	121 / 80.1
text_json_lines_small	0.94 / 0.62	0.81 / 0.82	0.74 / 0.79
text_json_parse_small	0.77 / 0.47	0.48 / 0.52	0.40 / 0.60
text_json_transform_medium	18.6 / 14.3	18.3 / 16.6	16.0 / 15.5
game_pidigits	n/a	197 / 196	177 / 171
text_regex_logs_medium	39.4 / 37.8	24.8 / 23.9	28.5 / 22.5
text_line_logs_small	0.59 / 0.59	0.54 / 0.57	0.62 / 0.66
text_regex_logs_small	1.44 / 0.96	0.93 / 0.76	2.64 / 0.99
text_line_logs_medium	26.8 / 26.4	13.6 / 12.1	17.5 / 16.7
ticket_search	42.5 / 40.7	13.9 / 11.5	20.5 / 19.7
perf_unpack_sequence	333 / 340	27.4 / 23.6	58.2 / 57.2
text_csv_aggregate_small	6.38 / 6.04	2.51 / 2.48	8.29 / 8.37
text_csv_cleanup_small	11.7 / 11.4	3.80 / 3.73	14.8 / 15.1

Peak RSS · MiB · one-shot

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

Workload	Monty	CPython	PyPy
text_json_lines_medium	23.6	23.7	124
capacity_planning	19.2	19.3	58.1
api_report	19.2	19.3	57.5
game_spectral_norm	19.2	19.3	59.1
perf_unpack_sequence	19.3	19.4	62.9
perf_json_loads	19.2	19.3	57.4
expense_report	19.2	19.3	57.5
text_json_parse_small	19.3	19.3	57.9
text_regex_logs_small	19.3	19.4	58.2
text_line_logs_medium	23.6	23.7	125
perf_json_dumps	19.3	19.3	60.6
text_json_lines_small	19.3	19.3	57.9
text_csv_cleanup_small	19.4	19.4	59.1
portfolio_risk	19.2	19.2	58.4
text_json_transform_medium	23.7	23.7	126
text_json_transform_small	19.4	19.4	57.8
text_json_parse_medium	23.6	23.6	126
order_cleanup	19.3	19.2	57.5
text_csv_aggregate_small	19.4	19.4	58.6
stdout_lines	19.3	19.2	59.4
ticket_search	19.3	19.2	60.1
game_nbody	19.3	19.2	58.8
perf_barnes_hut	19.4	19.3	88.8
text_line_logs_small	19.4	19.3	57.9
text_regex_logs_medium	21.5	21.3	127
memory_string_index_long	67.5	53.3	124
memory_string_index_short	56.0	41.6	108
text_csv_cleanup_medium	49.6	33.1	147
text_csv_aggregate_medium	42.2	27.7	149
memory_string_list_long	112	69.0	125
memory_string_list_short	89.5	45.8	99.5
memory_customer_records	156	67.3	134
perf_float	57.4	28.4	69.9
game_fannkuch	n/a	19.2	58.7
game_meteor_contest	n/a	19.3	61.0
game_pidigits	n/a	19.3	64.9
perf_gc_traversal	n/a	19.3	66.1
game_regex_dna	n/a	19.2	87.1