Programming Language and compiler
Benchmarks

OCaml VS Javascript benchmarks

Current benchmark data was generated on Sat Mar 29 2025, 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
javascript 1-m.js 952ms 9.6ms 197.4MB 1437ms 220ms bun 1.2.7
javascript 1-m.js 1321ms 107ms 289.4MB 2197ms 167ms node 23.10.0
ocaml 1.ml 3076ms 70ms 157.2MB 2993ms 73ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 102ms 1.5ms 79.8MB 73ms 30ms bun 1.2.7
javascript 1.js 126ms 1.1ms 78.6MB 127ms 27ms node 23.10.0
ocaml 1.ml 223ms 5.5ms 19.1MB 203ms 3ms ocaml 5.3.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 2920ms 14ms 4.9MB 2910ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 246ms 2.4ms 4.9MB 237ms 0ms ocaml 5.3.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 347ms 0.6ms 24.8MB 333ms 0ms ocaml 5.3.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 39ms 0.3ms 7.3MB 30ms 0ms ocaml 5.3.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1.9ms 0.1ms 5.0MB 0ms 0ms ocaml 5.3.0
javascript 1.js 13ms 0.4ms 33.1MB 0ms 10ms bun 1.2.7
javascript 1.js 31ms 0.6ms 48.0MB 18ms 4ms node 23.10.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 185ms 5.6ms 6.4MB 173ms 0ms ocaml 5.3.0
javascript 2.js 308ms 1.4ms 62.7MB 297ms 13ms node 23.10.0
javascript 1.js 557ms 2.0ms 60.6MB 543ms 13ms node 23.10.0
javascript 2.js 656ms 6.7ms 122.7MB 707ms 63ms bun 1.2.7
javascript 1.js 826ms 4.9ms 107.5MB 920ms 73ms bun 1.2.7

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 537ms 16ms 6.6MB 527ms 0ms ocaml 5.3.0
javascript 2.js 849ms 6.1ms 68.1MB 837ms 20ms node 23.10.0
javascript 1.js 1587ms 4.1ms 67.7MB 1573ms 17ms node 23.10.0
javascript 2.js 1841ms 8.1ms 122.5MB 2017ms 77ms bun 1.2.7
javascript 1.js 2382ms 22ms 111.6MB 2693ms 157ms bun 1.2.7

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 76ms 0.7ms 5.9MB 70ms 0ms ocaml 5.3.0
javascript 1.js 163ms 0.7ms 57.9MB 150ms 10ms node 23.10.0
javascript 2.js 166ms 0.8ms 56.7MB 157ms 7ms node 23.10.0
javascript 1.js 323ms 2.8ms 115.8MB 357ms 83ms bun 1.2.7
javascript 2.js 360ms 4.2ms 126.4MB 380ms 50ms bun 1.2.7

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 484ms 16ms 141.9MB 637ms 120ms bun 1.2.7
javascript 1.js 530ms 4.5ms 130.3MB 607ms 67ms node 23.10.0
ocaml 1.ml 1097ms 8.4ms 70.3MB 1057ms 30ms ocaml 5.3.0
ocaml 2.ml 2087ms 30ms 91.7MB 2037ms 33ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 116ms 2.7ms 86.8MB 100ms 33ms bun 1.2.7
ocaml 1.ml 149ms 1.0ms 21.7MB 133ms 7ms ocaml 5.3.0
javascript 1.js 159ms 1.1ms 98.3MB 160ms 37ms node 23.10.0
ocaml 2.ml 362ms 2.4ms 27.7MB 343ms 3ms ocaml 5.3.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 377ms 1.5ms 5.3MB 367ms 0ms ocaml 5.3.0
javascript 6.js 462ms 3.1ms 56.1MB 453ms 0ms node 23.10.0
javascript 6.js 782ms 14ms 46.1MB 777ms 3ms bun 1.2.7

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 40ms 1.1ms 5.2MB 30ms 0ms ocaml 5.3.0
javascript 6.js 78ms 0.6ms 56.1MB 67ms 7ms node 23.10.0
javascript 6.js 99ms 1.4ms 46.1MB 93ms 7ms bun 1.2.7

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 961ms 7.1ms 552.4MB 900ms 47ms ocaml 5.3.0
ocaml 2.ml 1888ms 3.0ms 18.9MB 1877ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 191ms 10ms 142.3MB 167ms 10ms ocaml 5.3.0
ocaml 2.ml 465ms 0.7ms 9.1MB 457ms 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 timeout 0.0ms 474.1MB 4813ms 173ms ocaml 5.3.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 550ms 3.3ms 57.1MB 517ms 20ms ocaml 5.3.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2201ms 33ms 115.5MB 8230ms 60ms node 23.10.0
ocaml 2.ml 4568ms 13ms 6.4MB 4557ms 0ms ocaml 5.3.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 653ms 1.5ms 112.8MB 2323ms 57ms node 23.10.0
ocaml 2.ml 1153ms 6.9ms 6.1MB 1143ms 0ms ocaml 5.3.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 269ms 3.8ms 110.6MB 830ms 53ms node 23.10.0
ocaml 2.ml 290ms 2.8ms 5.2MB 280ms 0ms ocaml 5.3.0