Programming Language and compiler
Benchmarks

OCaml VS Javascript benchmarks

Current benchmark data was generated on Mon May 19 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 983ms 44ms 182.9MB 1513ms 227ms bun 1.2.13
javascript 1.js 1066ms 5.1ms 468.4MB 1000ms 220ms node 24.0.2
ocaml 1.ml 3022ms 19ms 157.1MB 2943ms 60ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 102ms 0.9ms 77.4MB 83ms 23ms bun 1.2.13
javascript 1.js 130ms 2.5ms 80.7MB 130ms 27ms node 24.0.2
ocaml 1.ml 219ms 1.7ms 19.1MB 200ms 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 2919ms 5.3ms 4.9MB 2907ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 245ms 3.9ms 4.9MB 233ms 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 346ms 1.0ms 24.9MB 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 0.8ms 7.5MB 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 1.8ms 0.1ms 5.1MB 0ms 0ms ocaml 5.3.0
javascript 1.js 13ms 0.6ms 31.9MB 0ms 0ms bun 1.2.13
javascript 1.js 32ms 0.5ms 50.0MB 16ms 8ms node 24.0.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 178ms 7.5ms 6.6MB 167ms 0ms ocaml 5.3.0
javascript 2.js 305ms 1.5ms 64.5MB 297ms 10ms node 24.0.2
javascript 1.js 571ms 4.9ms 63.0MB 553ms 10ms node 24.0.2
javascript 2.js 665ms 6.1ms 124.1MB 717ms 50ms bun 1.2.13
javascript 1.js 825ms 5.5ms 109.9MB 920ms 73ms bun 1.2.13

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 536ms 22ms 6.6MB 527ms 0ms ocaml 5.3.0
javascript 2.js 835ms 0.7ms 70.6MB 817ms 20ms node 24.0.2
javascript 1.js 1622ms 1.9ms 69.6MB 1603ms 13ms node 24.0.2
javascript 2.js 1852ms 9.1ms 124.3MB 2033ms 73ms bun 1.2.13
javascript 1.js 2389ms 8.5ms 109.5MB 2717ms 163ms bun 1.2.13

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 77ms 1.7ms 5.9MB 70ms 0ms ocaml 5.3.0
javascript 2.js 166ms 2.3ms 59.0MB 160ms 10ms node 24.0.2
javascript 1.js 169ms 1.1ms 60.0MB 160ms 10ms node 24.0.2
javascript 1.js 320ms 1.9ms 114.0MB 363ms 73ms bun 1.2.13
javascript 2.js 361ms 1.8ms 123.9MB 380ms 53ms bun 1.2.13

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 486ms 0.8ms 138.7MB 660ms 113ms bun 1.2.13
javascript 1.js 579ms 3.1ms 229.5MB 577ms 120ms node 24.0.2
ocaml 1.ml 1089ms 3.3ms 70.2MB 1053ms 20ms ocaml 5.3.0
ocaml 2.ml 2063ms 7.0ms 91.8MB 2010ms 40ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 119ms 4.5ms 85.8MB 107ms 30ms bun 1.2.13
ocaml 1.ml 147ms 2.5ms 21.7MB 130ms 3ms ocaml 5.3.0
javascript 1.js 163ms 3.2ms 100.3MB 160ms 33ms node 24.0.2
ocaml 2.ml 366ms 7.2ms 27.6MB 343ms 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 379ms 1.8ms 5.2MB 370ms 0ms ocaml 5.3.0
javascript 6.js 458ms 3.2ms 58.0MB 443ms 10ms node 24.0.2
javascript 6.js 604ms 7.0ms 44.5MB 603ms 3ms bun 1.2.13

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 41ms 1.5ms 5.3MB 30ms 0ms ocaml 5.3.0
javascript 6.js 80ms 1.6ms 58.2MB 70ms 7ms node 24.0.2
javascript 6.js 82ms 2.8ms 44.5MB 77ms 3ms bun 1.2.13

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 940ms 9.1ms 541.2MB 883ms 43ms ocaml 5.3.0
ocaml 2.ml 1904ms 37ms 19.0MB 1893ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 178ms 1.2ms 142.2MB 157ms 10ms ocaml 5.3.0
ocaml 2.ml 471ms 3.6ms 9.1MB 460ms 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 462.8MB 4830ms 157ms ocaml 5.3.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 549ms 15ms 57.1MB 513ms 23ms 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 2184ms 8.5ms 118.8MB 8193ms 60ms node 24.0.2
ocaml 2.ml 4567ms 9.8ms 6.3MB 4560ms 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 663ms 3.7ms 117.6MB 2293ms 53ms node 24.0.2
ocaml 2.ml 1147ms 4.8ms 6.1MB 1137ms 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 2.4ms 112.1MB 823ms 50ms node 24.0.2
ocaml 2.ml 295ms 7.0ms 5.2MB 287ms 0ms ocaml 5.3.0