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
Run duration: 18m 30s

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 CPython · 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
1.69	12.6	23.2

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	773 / 774	151 / 149	19.1 / 19.2
portfolio_risk	152 / 151	84.1 / 83.7	12.2 / 13.5
game_spectral_norm	695 / 686	136 / 134	22.2 / 22.7
game_fannkuch	n/a	497 / 497	86.7 / 87.2
capacity_planning	77.5 / 75.5	21.7 / 19.6	4.29 / 4.38
expense_report	0.40 / 0.35	1.89 / 0.58	0.43 / 0.58
perf_float	390 / 349	95.3 / 89.8	23.9 / 21.3
api_report	0.81 / 0.44	1.94 / 0.61	0.46 / 0.62
order_cleanup	0.47 / 0.40	1.93 / 0.61	0.48 / 0.62
perf_json_loads	1.61 / 1.19	3.69 / 2.18	1.22 / 1.37
perf_barnes_hut	6890 / 6880	1260 / 1250	706 / 541
game_regex_dna	n/a	316 / 309	216 / 148
memory_string_list_short	329 / 291	153 / 143	83.2 / 140
text_csv_aggregate_medium	581 / 564	136 / 131	95.6 / 75.0
perf_json_dumps	14.1 / 11.6	21.7 / 19.6	23.4 / 18.8
perf_gc_traversal	n/a	22.1 / 19.8	13.8 / 2080
text_json_parse_medium	15.0 / 10.8	17.0 / 15.3	10.6 / 11.0
memory_customer_records	613 / 538	257 / 253	201 / 162
text_json_lines_medium	20.7 / 20.1	27.8 / 26.7	18.7 / 18.7
text_json_lines_small	0.93 / 0.61	0.80 / 0.87	0.73 / 0.79
game_meteor_contest	n/a	123 / 121	90.6 / 86.6
memory_string_list_long	443 / 396	167 / 156	120 / 172
text_csv_cleanup_medium	1140 / 1120	256 / 250	192 / 182
memory_string_index_short	152 / 126	101 / 91.9	104 / 69.1
text_json_transform_small	0.89 / 0.57	0.69 / 0.74	0.53 / 0.67
memory_string_index_long	214 / 179	113 / 102	118 / 78.9
text_json_parse_small	0.76 / 0.47	0.48 / 0.54	0.39 / 0.58
text_json_transform_medium	18.2 / 13.9	18.3 / 16.6	15.8 / 14.5
game_pidigits	n/a	198 / 197	175 / 177
text_regex_logs_medium	38.8 / 37.7	24.9 / 24.0	28.4 / 22.6
text_line_logs_small	0.58 / 0.60	0.54 / 0.56	0.61 / 0.69
text_regex_logs_small	1.45 / 0.99	0.92 / 0.78	2.58 / 1.05
text_line_logs_medium	27.5 / 27.0	13.5 / 11.9	17.4 / 16.9
ticket_search	41.0 / 39.2	13.8 / 11.7	20.0 / 19.7
perf_unpack_sequence	335 / 340	27.3 / 23.5	58.0 / 57.2
text_csv_aggregate_small	6.36 / 6.07	2.51 / 2.50	8.15 / 8.22
text_csv_cleanup_small	11.8 / 11.3	3.80 / 3.77	14.6 / 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
ticket_search	19.3	19.4	60.2
text_line_logs_medium	23.5	23.7	125
game_spectral_norm	19.3	19.4	59.1
order_cleanup	19.4	19.4	57.5
text_json_lines_medium	24.0	24.1	124
api_report	19.3	19.4	57.4
game_nbody	19.4	19.4	58.8
text_json_transform_medium	23.7	23.7	126
perf_unpack_sequence	19.4	19.4	62.6
text_csv_aggregate_small	19.3	19.3	58.6
capacity_planning	19.3	19.3	58.2
perf_json_dumps	19.3	19.3	60.6
text_json_parse_medium	23.6	23.6	126
portfolio_risk	19.3	19.3	58.5
text_regex_logs_small	19.4	19.4	58.2
perf_json_loads	19.4	19.3	57.4
text_line_logs_small	19.4	19.4	57.8
expense_report	19.4	19.4	57.4
text_regex_logs_medium	21.5	21.4	127
text_csv_cleanup_small	19.4	19.4	59.2
perf_barnes_hut	19.4	19.3	88.8
text_json_transform_small	19.4	19.3	57.9
text_json_parse_small	19.4	19.3	57.9
text_json_lines_small	19.3	19.2	57.9
memory_string_index_long	67.4	53.3	124
memory_string_index_short	56.3	41.6	108
text_csv_cleanup_medium	49.8	33.2	147
text_csv_aggregate_medium	42.1	27.6	149
memory_string_list_long	112	69.0	125
memory_string_list_short	89.8	45.8	99.5
memory_customer_records	156	67.3	134
perf_float	57.5	28.4	69.9
game_fannkuch	n/a	19.3	58.7
game_meteor_contest	n/a	19.3	60.9
game_pidigits	n/a	19.3	64.9
perf_gc_traversal	n/a	19.3	66.1
game_regex_dna	n/a	19.4	87.2