Programming Language and compiler
Benchmarks

Results for 38 of 40 languages from this run on actest1.

Unavailable in this run: Hack, Lisp. Follow the run link for failure details.

Dart VS Python benchmarks

Current benchmark data was generated on Sun Sep 27 2026, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] Intel(R) Core(TM) i7-3687U CPU @ 2.10GHz (Model 58)

* -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
dart 1.dart 1485ms 9.0ms 70.6MB 1513ms 33ms dart/exe 3.13.4
python 1.py 11298ms 16ms 42.2MB 11140ms 137ms cpython 3.12.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 615ms 12ms 40.9MB 607ms 13ms dart/exe 3.13.4
python 1.py 1013ms 82ms 14.0MB 993ms 3ms cpython 3.12.3

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 9125ms 113ms 18.3MB 10160ms 83ms dart/exe 3.13.4
python 1.py 65184ms 117ms 29.0MB 65137ms 23ms cpython 3.12.3

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 545ms 7.6ms 9.6MB 550ms 17ms dart/exe 3.13.4
python 1.py 1188ms 13ms 25.0MB 1167ms 7ms cpython 3.12.3

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 786ms 5.0ms 15.6MB 770ms 0ms cpython 3.12.3
dart 1.dart 10249ms 21ms 17.3MB 10233ms 20ms dart/exe 3.13.4

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 290ms 1.1ms 14.8MB 273ms 7ms cpython 3.12.3
dart 1.dart 1629ms 12ms 10.3MB 1610ms 10ms dart/exe 3.13.4

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 4483ms 36ms 6.2MB 4470ms 0ms dart/exe 3.13.4

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 359ms 2.6ms 5.7MB 347ms 0ms dart/exe 3.13.4

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 453ms 23ms 8.5MB 443ms 0ms dart/exe 3.13.4
python 5-m.py 4266ms 218ms 18.4MB 7193ms 1040ms cpython 3.12.3
python 1.py 6168ms 31ms 10.1MB 6150ms 7ms cpython 3.12.3

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 52ms 3.1ms 8.5MB 40ms 0ms dart/exe 3.13.4
python 1.py 648ms 13ms 10.1MB 633ms 3ms cpython 3.12.3
python 5-m.py 719ms 17ms 18.5MB 943ms 193ms cpython 3.12.3

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 4.6ms 0.7ms 5.6MB 0ms 0ms dart/exe 3.13.4
python 1.py 24ms 2.6ms 10.2MB 16ms 0ms cpython 3.12.3

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2-m.dart 1656ms 60ms 93.2MB 1903ms 1347ms dart/exe 3.13.4
python 1.py 2680ms 37ms 40.0MB 2783ms 1070ms cpython 3.12.3
dart 1.dart 8370ms 40ms 85.5MB 1817ms 1257ms dart/exe 3.13.4

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 398ms 29ms 49.0MB 280ms 263ms dart/exe 3.13.4
python 1.py 1650ms 27ms 34.6MB 1280ms 217ms cpython 3.12.3
dart 1.dart 2683ms 529ms 47.1MB 213ms 233ms dart/exe 3.13.4

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 213ms 4.2ms 51.5MB 193ms 10ms dart/exe 3.13.4
python 1.py 386ms 2.2ms 42.1MB 353ms 17ms cpython 3.12.3

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 2025ms 38ms 267.6MB 2557ms 103ms dart/exe 3.13.4
python 1.py 2449ms 9.2ms 224.6MB 2347ms 83ms cpython 3.12.3

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3-m.dart 2275ms 81ms 279.0MB 6273ms 100ms dart/exe 3.13.4
python 3-m.py 10152ms 192ms 39.2MB 38327ms 140ms cpython 3.12.3

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3-m.dart 385ms 7.1ms 185.6MB 910ms 67ms dart/exe 3.13.4
python 3-m.py 1341ms 2.3ms 19.9MB 4197ms 93ms cpython 3.12.3

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 203ms 0.9ms 8.7MB 190ms 0ms dart/exe 3.13.4
dart 1.dart 1045ms 0.8ms 8.6MB 1033ms 0ms dart/exe 3.13.4
python 1.py 1596ms 22ms 13.1MB 1573ms 3ms cpython 3.12.3
python 2.py 1925ms 15ms 10.1MB 1907ms 3ms cpython 3.12.3

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 587ms 2.0ms 9.4MB 577ms 0ms dart/exe 3.13.4
dart 1.dart 3117ms 5.0ms 8.7MB 3103ms 0ms dart/exe 3.13.4
python 1.py 4622ms 61ms 13.2MB 4603ms 3ms cpython 3.12.3
python 2.py 5717ms 152ms 10.2MB 5700ms 0ms cpython 3.12.3

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 99ms 1.9ms 8.6MB 90ms 0ms dart/exe 3.13.4
dart 1.dart 170ms 2.9ms 8.6MB 160ms 0ms dart/exe 3.13.4
python 1.py 773ms 12ms 13.1MB 760ms 0ms cpython 3.12.3
python 2.py 941ms 8.5ms 10.1MB 927ms 0ms cpython 3.12.3

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 826ms 7.2ms 55.9MB 820ms 30ms dart/exe 3.13.4
python 1.py 34848ms 576ms 107.3MB 34757ms 73ms cpython 3.12.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 463ms 4.0ms 43.5MB 447ms 13ms dart/exe 3.13.4
python 1.py 5815ms 33ms 34.4MB 5790ms 7ms cpython 3.12.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3.dart 763ms 1.7ms 5.5MB 750ms 0ms dart/exe 3.13.4
python 1.py 39068ms 95ms 10.2MB 39050ms 0ms cpython 3.12.3
python 2.py 41152ms 307ms 11.3MB 41133ms 0ms cpython 3.12.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3.dart 84ms 3.0ms 5.8MB 70ms 3ms dart/exe 3.13.4
python 1.py 3811ms 20ms 10.2MB 3797ms 0ms cpython 3.12.3
python 2.py 4147ms 89ms 10.2MB 4137ms 0ms cpython 3.12.3

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 1998ms 7.0ms 15.2MB 1987ms 47ms dart/exe 3.13.4
python 4.py 3045ms 90ms 10.4MB 3027ms 3ms cpython 3.12.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 439ms 5.3ms 15.0MB 423ms 10ms dart/exe 3.13.4
python 4.py 733ms 3.8ms 10.1MB 720ms 0ms cpython 3.12.3

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 6857ms 32ms 212.7MB 6743ms 103ms cpython 3.12.3
dart 1.dart 9757ms 76ms 187.5MB 9767ms 80ms dart/exe 3.13.4

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 793ms 3.6ms 32.5MB 763ms 10ms cpython 3.12.3
dart 1.dart 987ms 14ms 43.3MB 957ms 17ms dart/exe 3.13.4

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 8696ms 5.2ms 6.3MB 8683ms 0ms dart/exe 3.13.4
dart 1.dart 11051ms 5.3ms 5.8MB 11040ms 0ms dart/exe 3.13.4
python 8.py timeout (300s) — — — — cpython 3.12.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 2185ms 2.8ms 5.7MB 2173ms 0ms dart/exe 3.13.4
dart 1.dart 2766ms 11ms 5.9MB 2757ms 0ms dart/exe 3.13.4
python 8.py timeout (120s) — — — — cpython 3.12.3

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 554ms 2.3ms 5.7MB 540ms 0ms dart/exe 3.13.4
dart 1.dart 701ms 3.2ms 5.8MB 690ms 0ms dart/exe 3.13.4
python 8-m.py 34942ms 580ms 20.5MB 135877ms 227ms cpython 3.12.3