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.

OCaml VS Dart 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
ocaml 1.ml 5051ms 131ms 156.9MB 4967ms 63ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 379ms 6.4ms 19.3MB 360ms 3ms ocaml 5.3.0
dart 1.dart 615ms 12ms 40.9MB 607ms 13ms dart/exe 3.13.4

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 3708ms 10ms 2.7MB 3697ms 0ms ocaml 5.3.0
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
ocaml 2.ml 341ms 78ms 4.8MB 327ms 0ms ocaml 5.3.0
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
ocaml 6.ml 349ms 5.9ms 23.0MB 333ms 0ms ocaml 5.3.0
dart 1.dart 453ms 23ms 8.5MB 443ms 0ms dart/exe 3.13.4

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 41ms 1.4ms 5.5MB 27ms 0ms ocaml 5.3.0
dart 1.dart 52ms 3.1ms 8.5MB 40ms 0ms dart/exe 3.13.4

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 2.3ms 0.5ms 3.1MB 0ms 0ms ocaml 5.3.0
dart 1.dart 4.6ms 0.7ms 5.6MB 0ms 0ms dart/exe 3.13.4

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
ocaml 1.ml 271ms 4.6ms 6.5MB 257ms 0ms ocaml 5.3.0
dart 1.dart 1045ms 0.8ms 8.6MB 1033ms 0ms dart/exe 3.13.4

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
ocaml 1.ml 760ms 12ms 6.4MB 750ms 0ms ocaml 5.3.0
dart 1.dart 3117ms 5.0ms 8.7MB 3103ms 0ms dart/exe 3.13.4

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
ocaml 1.ml 131ms 26ms 5.9MB 120ms 0ms ocaml 5.3.0
dart 1.dart 170ms 2.9ms 8.6MB 160ms 0ms dart/exe 3.13.4

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
ocaml 1.ml 1750ms 70ms 71.3MB 1707ms 27ms ocaml 5.3.0
ocaml 2.ml 3254ms 22ms 92.0MB 3210ms 30ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 285ms 24ms 21.8MB 267ms 0ms ocaml 5.3.0
dart 1.dart 463ms 4.0ms 43.5MB 447ms 13ms dart/exe 3.13.4
ocaml 2.ml 599ms 0.6ms 27.8MB 570ms 10ms ocaml 5.3.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 697ms 7.9ms 2.7MB 687ms 0ms ocaml 5.3.0
dart 3.dart 763ms 1.7ms 5.5MB 750ms 0ms dart/exe 3.13.4

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 75ms 1.3ms 2.7MB 67ms 0ms ocaml 5.3.0
dart 3.dart 84ms 3.0ms 5.8MB 70ms 3ms dart/exe 3.13.4

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1803ms 29ms 547.7MB 1730ms 57ms ocaml 5.3.0
ocaml 2.ml 3669ms 69ms 19.0MB 3653ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 424ms 2.5ms 133.8MB 393ms 13ms ocaml 5.3.0
ocaml 2.ml 745ms 19ms 9.3MB 730ms 0ms ocaml 5.3.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 6927ms 135ms 485.2MB 6767ms 147ms ocaml 5.3.0
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
ocaml 2.ml 707ms 9.4ms 57.3MB 673ms 17ms ocaml 5.3.0
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
ocaml 2.ml 11056ms 13ms 4.6MB 11043ms 0ms ocaml 5.3.0

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
ocaml 2.ml 2773ms 3.9ms 4.1MB 2760ms 0ms ocaml 5.3.0

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
ocaml 2.ml 702ms 3.3ms 3.3MB 687ms 0ms ocaml 5.3.0