Programming Language and compiler
Benchmarks

OCaml VS Python benchmarks

Current benchmark data was generated on Sun Dec 01 2024, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 1149ms 16ms 95.7MB 1087ms 47ms pypy 3.10.14
ocaml 1.ml 3047ms 16ms 132.6MB 2977ms 60ms ocaml 5.2.1
python 1.py timeout 0.0ms 40.8MB 4970ms 17ms cpython 3.13.0
python 1.py timeout 0.0ms 40.6MB 4743ms 240ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 94ms 1.9ms 68.0MB 63ms 20ms pypy 3.10.14
ocaml 1.ml 217ms 3.2ms 19.2MB 200ms 0ms ocaml 5.2.1
python 1.py 491ms 25ms 11.9MB 463ms 7ms pyston 3.8.12
python 1.py 710ms 4.2ms 12.8MB 697ms 0ms cpython 3.13.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 2908ms 3.8ms 4.9MB 2897ms 0ms ocaml 5.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 245ms 2.2ms 4.9MB 233ms 0ms ocaml 5.2.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 347ms 0.9ms 24.9MB 330ms 0ms ocaml 5.2.1
python 1.py 1909ms 10.0ms 88.3MB 1867ms 23ms pypy 3.10.14
python 5-m.py 2472ms 27ms 12.5MB 3610ms 997ms pyston 3.8.12
python 5-m.py 2826ms 10ms 64.9MB 4047ms 780ms pypy 3.10.14
python 1.py 3033ms 47ms 8.1MB 3017ms 0ms pyston 3.8.12
python 5-m.py 3411ms 65ms 13.9MB 4617ms 930ms cpython 3.13.0
python 1.py 4670ms 96ms 8.8MB 4650ms 3ms cpython 3.13.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 38ms 0.2ms 7.4MB 27ms 0ms ocaml 5.2.1
python 1.py 250ms 0.3ms 63.8MB 223ms 10ms pypy 3.10.14
python 5-m.py 312ms 1.4ms 12.5MB 420ms 123ms pyston 3.8.12
python 1.py 312ms 2.4ms 8.1MB 297ms 0ms pyston 3.8.12
python 5-m.py 408ms 10ms 13.9MB 520ms 120ms cpython 3.13.0
python 1.py 478ms 11ms 8.8MB 463ms 0ms cpython 3.13.0
python 5-m.py 555ms 5.0ms 65.0MB 817ms 313ms pypy 3.10.14

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1.8ms 0.2ms 4.9MB 0ms 0ms ocaml 5.2.1
python 1.py 12ms 1.2ms 7.6MB 5ms 5ms pyston 3.8.12
python 1.py 15ms 0.3ms 8.5MB 10ms 0ms cpython 3.13.0
python 1.py 29ms 1.5ms 51.0MB 4ms 12ms pypy 3.10.14

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 2.py 146ms 5.0ms 57.9MB 120ms 7ms pypy 3.10.14
python 1.py 176ms 0.5ms 59.5MB 150ms 10ms pypy 3.10.14
ocaml 1.ml 183ms 10ms 6.4MB 170ms 0ms ocaml 5.2.1
python 1.py 713ms 3.1ms 8.9MB 703ms 0ms pyston 3.8.12
python 2.py 841ms 12ms 8.5MB 830ms 0ms pyston 3.8.12
python 1.py 1118ms 25ms 9.4MB 1110ms 0ms cpython 3.13.0
python 2.py 1290ms 15ms 9.1MB 1273ms 0ms cpython 3.13.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 2.py 339ms 1.0ms 58.9MB 313ms 13ms pypy 3.10.14
python 1.py 372ms 2.9ms 60.4MB 347ms 10ms pypy 3.10.14
ocaml 1.ml 530ms 20ms 6.6MB 517ms 0ms ocaml 5.2.1
python 1.py 2130ms 31ms 8.9MB 2117ms 3ms pyston 3.8.12
python 2.py 2504ms 61ms 8.5MB 2490ms 0ms pyston 3.8.12
python 1.py 3298ms 41ms 9.4MB 3283ms 0ms cpython 3.13.0
python 2.py 3869ms 4.9ms 9.1MB 3853ms 0ms cpython 3.13.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 78ms 2.4ms 5.9MB 67ms 0ms ocaml 5.2.1
python 2.py 103ms 0.8ms 57.8MB 77ms 13ms pypy 3.10.14
python 1.py 120ms 2.9ms 58.5MB 97ms 7ms pypy 3.10.14
python 1.py 349ms 5.9ms 8.5MB 333ms 0ms pyston 3.8.12
python 2.py 384ms 5.3ms 8.1MB 367ms 3ms pyston 3.8.12
python 1.py 536ms 14ms 9.3MB 520ms 0ms cpython 3.13.0
python 2.py 617ms 1.4ms 8.8MB 607ms 0ms cpython 3.13.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1072ms 10ms 70.2MB 1030ms 27ms ocaml 5.2.1
ocaml 2.ml 2064ms 47ms 91.7MB 2007ms 43ms ocaml 5.2.1
python 1.py 2247ms 43ms 210.1MB 2133ms 97ms pypy 3.10.14
python 1.py timeout 0.0ms 93.9MB 4953ms 30ms cpython 3.13.0
python 1.py timeout 0.0ms 130.3MB 4930ms 50ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 150ms 2.7ms 21.6MB 127ms 10ms ocaml 5.2.1
ocaml 2.ml 362ms 1.9ms 27.6MB 337ms 7ms ocaml 5.2.1
python 1.py 378ms 2.6ms 103.6MB 327ms 33ms pypy 3.10.14
python 1.py 3059ms 119ms 37.1MB 3030ms 17ms cpython 3.13.0
python 1.py timeout 0.0ms 48.9MB 4953ms 33ms pyston 3.8.12

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 374ms 0.9ms 5.2MB 363ms 0ms ocaml 5.2.1
python 2.py 1352ms 14ms 59.8MB 1320ms 17ms pypy 3.10.14
python 1.py 2641ms 30ms 56.6MB 2610ms 13ms pypy 3.10.14
python 1.py timeout 0.0ms 8.8MB 4987ms 0ms cpython 3.13.0
python 2.py timeout 0.0ms 8.8MB 4983ms 0ms cpython 3.13.0
python 1.py timeout 0.0ms 8.3MB 4990ms 0ms pyston 3.8.12
python 2.py timeout 0.0ms 8.1MB 4990ms 0ms pyston 3.8.12

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 42ms 1.3ms 5.2MB 30ms 0ms ocaml 5.2.1
python 2.py 180ms 2.7ms 57.6MB 153ms 10ms pypy 3.10.14
python 1.py 304ms 5.3ms 56.8MB 277ms 10ms pypy 3.10.14
python 1.py 1078ms 255ms 8.3MB 1063ms 0ms pyston 3.8.12
python 2.py 1319ms 15ms 8.1MB 1303ms 0ms pyston 3.8.12
python 1.py 2912ms 17ms 8.8MB 2900ms 0ms cpython 3.13.0
python 2.py 3132ms 41ms 8.8MB 3123ms 0ms cpython 3.13.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 945ms 20ms 551.3MB 877ms 50ms ocaml 5.2.1
ocaml 2.ml 1910ms 4.6ms 18.3MB 1897ms 0ms ocaml 5.2.1
python 1.py 2489ms 28ms 369.0MB 2417ms 57ms pypy 3.10.14
python 2.py 2905ms 8.7ms 632.9MB 2723ms 167ms pyston 3.8.12
python 1.py 4843ms 56ms 320.4MB 4783ms 43ms pyston 3.8.12
python 1.py timeout 0.0ms 321.2MB 4963ms 23ms cpython 3.13.0
python 2.py timeout 0.0ms 633.6MB 4813ms 170ms cpython 3.13.0
python 2.py timeout 0.0ms 959.3MB 4733ms 250ms pypy 3.10.14

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 201ms 5.9ms 142.1MB 173ms 10ms ocaml 5.2.1
ocaml 2.ml 471ms 2.4ms 9.1MB 460ms 0ms ocaml 5.2.1
python 1.py 540ms 2.4ms 134.6MB 500ms 27ms pypy 3.10.14
python 2.py 709ms 4.9ms 164.2MB 657ms 33ms pyston 3.8.12
python 1.py 1118ms 29ms 86.0MB 1090ms 10ms pyston 3.8.12
python 2.py 1383ms 21ms 164.9MB 1333ms 30ms cpython 3.13.0
python 2.py 1531ms 11ms 289.6MB 1443ms 73ms pypy 3.10.14
python 1.py 2652ms 13ms 86.9MB 2623ms 10ms cpython 3.13.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 2217ms 5.8ms 243.1MB 2157ms 43ms pypy 3.10.14
python 1.py 4742ms 15ms 226.2MB 4557ms 170ms pyston 3.8.12
ocaml 2.ml timeout 0.0ms 484.9MB 4780ms 200ms ocaml 5.2.1
python 1.py timeout 0.0ms 179.6MB 4903ms 77ms cpython 3.13.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 330ms 5.3ms 85.5MB 283ms 30ms pypy 3.10.14
python 1.py 493ms 3.6ms 30.3MB 450ms 27ms pyston 3.8.12
ocaml 2.ml 533ms 28ms 57.1MB 490ms 27ms ocaml 5.2.1
python 1.py 587ms 4.1ms 29.9MB 547ms 23ms cpython 3.13.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 4487ms 17ms 6.6MB 4477ms 0ms ocaml 5.2.1
python 8.py timeout 0.0ms 16.7MB 53ms 10ms cpython 3.13.0
python 8.py timeout 0.0ms 100.0MB 833ms 137ms pypy 3.10.14
python 8.py timeout 0.0ms 18.2MB 70ms 13ms pyston 3.8.12

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 1126ms 6.0ms 5.9MB 1117ms 0ms ocaml 5.2.1
python 8.py timeout 0.0ms 16.4MB 93ms 30ms cpython 3.13.0
python 8.py timeout 0.0ms 99.8MB 1533ms 517ms pypy 3.10.14
python 8.py timeout 0.0ms 17.5MB 140ms 33ms pyston 3.8.12

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 284ms 2.2ms 5.2MB 270ms 0ms ocaml 5.2.1
python 8-m.py 1973ms 18ms 95.1MB 6307ms 370ms pypy 3.10.14
python 8.py timeout 0.0ms 16.1MB 277ms 40ms cpython 3.13.0
python 8.py timeout 0.0ms 17.3MB 397ms 113ms pyston 3.8.12