Programming Language and compiler
Benchmarks

OCaml VS Haxe benchmarks

Current benchmark data was generated on Sun Jul 13 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
haxe 1.hx 1311ms 12ms 144.0MB 1490ms 67ms haxe/cpp 4.3.6
ocaml 1.ml 3087ms 52ms 157.2MB 3003ms 70ms ocaml 5.3.0
haxe 2.hx 4393ms 32ms 495.3MB 4950ms 253ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 48.6MB 5573ms 410ms haxe/hl/c 4.3.6
haxe 2.hx timeout 0.0ms 83.0MB 5077ms 677ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 51.1MB 7727ms 420ms haxe/hl/jit 1.16.0
haxe 2.hx timeout 0.0ms 130.9MB 7430ms 763ms haxe/hl/jit 1.16.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 89ms 1.8ms 25.6MB 83ms 7ms haxe/cpp 4.3.6
ocaml 1.ml 221ms 1.6ms 19.1MB 207ms 0ms ocaml 5.3.0
haxe 2.hx 401ms 15ms 58.3MB 437ms 27ms haxe/cpp 4.3.6
haxe 1.hx 639ms 3.4ms 8.9MB 610ms 40ms haxe/hl/c 4.3.6
haxe 1.hx 676ms 10ms 11.2MB 747ms 53ms haxe/hl/jit 1.16.0
haxe 2.hx 916ms 2.0ms 13.6MB 807ms 147ms haxe/hl/c 4.3.6
haxe 2.hx 954ms 12ms 25.0MB 927ms 173ms haxe/hl/jit 1.16.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 2909ms 4.1ms 4.9MB 2903ms 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 0.8ms 5.2MB 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 346ms 1.9ms 24.8MB 330ms 0ms ocaml 5.3.0
haxe 1.hx 2367ms 7.6ms 25.6MB 2247ms 210ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.2MB 4373ms 847ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 3.6MB 4380ms 853ms haxe/hl/jit 1.16.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 39ms 0.7ms 7.4MB 30ms 0ms ocaml 5.3.0
haxe 1.hx 253ms 3.1ms 25.6MB 230ms 20ms haxe/cpp 4.3.6
haxe 1.hx 652ms 2.2ms 3.3MB 557ms 110ms haxe/hl/c 4.3.6
haxe 1.hx 680ms 1.4ms 3.6MB 590ms 107ms haxe/hl/jit 1.16.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1.8ms 0.1ms 5.0MB 0ms 0ms ocaml 5.3.0
haxe 1.hx 1.9ms 0.3ms 2.9MB 0ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 2.3ms 0.3ms 4.3MB 0ms 0ms haxe/cpp 4.3.6
haxe 1.hx 3.6ms 0.4ms 2.9MB 0ms 0ms haxe/hl/jit 1.16.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 135ms 2.7ms 20.4MB 120ms 7ms haxe/cpp 4.3.6
haxe 1.hx 136ms 1.8ms 3.0MB 130ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 157ms 3.3ms 3.8MB 143ms 0ms haxe/hl/jit 1.16.0
ocaml 1.ml 173ms 2.7ms 6.4MB 163ms 0ms ocaml 5.3.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 380ms 0.6ms 25.5MB 367ms 3ms haxe/cpp 4.3.6
haxe 1.hx 400ms 2.5ms 3.0MB 387ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 461ms 1.2ms 3.8MB 450ms 0ms haxe/hl/jit 1.16.0
ocaml 1.ml 532ms 18ms 6.6MB 520ms 0ms ocaml 5.3.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 63ms 0.1ms 12.3MB 50ms 0ms haxe/cpp 4.3.6
haxe 1.hx 67ms 0.7ms 3.1MB 60ms 0ms haxe/hl/c 4.3.6
ocaml 1.ml 78ms 0.4ms 6.2MB 70ms 0ms ocaml 5.3.0
haxe 1.hx 78ms 0.7ms 3.8MB 70ms 0ms haxe/hl/jit 1.16.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 910ms 10ms 95.0MB 1013ms 50ms haxe/cpp 4.3.6
ocaml 1.ml 1077ms 22ms 70.2MB 1037ms 27ms ocaml 5.3.0
ocaml 2.ml 2068ms 35ms 91.8MB 2017ms 37ms ocaml 5.3.0
haxe 1.hx timeout 0.0ms 32.6MB 4943ms 517ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 55.1MB 5973ms 470ms haxe/hl/jit 1.16.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 144ms 1.4ms 21.7MB 127ms 3ms ocaml 5.3.0
haxe 1.hx 174ms 3.9ms 26.6MB 180ms 10ms haxe/cpp 4.3.6
ocaml 2.ml 359ms 6.4ms 27.7MB 340ms 7ms ocaml 5.3.0
haxe 1.hx 1303ms 5.0ms 10.7MB 1240ms 137ms haxe/hl/c 4.3.6
haxe 1.hx 1313ms 5.8ms 20.4MB 1327ms 127ms haxe/hl/jit 1.16.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 374ms 2.6ms 5.2MB 367ms 0ms ocaml 5.3.0
haxe 2.hx 856ms 5.4ms 3.1MB 843ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 1062ms 2.4ms 3.1MB 1053ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 1386ms 1.4ms 25.8MB 1533ms 30ms haxe/cpp 4.3.6
haxe 2.hx 2400ms 5.3ms 3.6MB 2393ms 0ms haxe/hl/jit 1.16.0
haxe 1.hx 2475ms 2.8ms 3.8MB 2467ms 0ms haxe/hl/jit 1.16.0
haxe 1.hx timeout 0.0ms 4.4MB 4990ms 0ms haxe/cpp 4.3.6
haxe 2.hx timeout 0.0ms 4.4MB 4990ms 0ms haxe/cpp 4.3.6
haxe 3.hx timeout 0.0ms 3.1MB 3940ms 1570ms haxe/hl/c 4.3.6
haxe 3.hx timeout 0.0ms 4.0MB 4160ms 1310ms haxe/hl/jit 1.16.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 40ms 0.1ms 5.2MB 30ms 0ms ocaml 5.3.0
haxe 2.hx 89ms 2.0ms 3.0MB 80ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 110ms 1.4ms 3.0MB 100ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 152ms 0.9ms 25.6MB 153ms 7ms haxe/cpp 4.3.6
haxe 2.hx 245ms 0.5ms 3.8MB 237ms 0ms haxe/hl/jit 1.16.0
haxe 1.hx 252ms 1.0ms 3.6MB 240ms 0ms haxe/hl/jit 1.16.0
haxe 2.hx 674ms 2.5ms 4.4MB 663ms 0ms haxe/cpp 4.3.6
haxe 3.hx 677ms 2.3ms 3.1MB 523ms 210ms haxe/hl/c 4.3.6
haxe 3.hx 786ms 5.0ms 3.8MB 643ms 210ms haxe/hl/jit 1.16.0
haxe 1.hx 808ms 3.0ms 4.4MB 797ms 0ms haxe/cpp 4.3.6

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 945ms 11ms 547.9MB 883ms 47ms ocaml 5.3.0
ocaml 2.ml 1884ms 7.1ms 17.2MB 1870ms 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 0.8ms 142.3MB 153ms 10ms ocaml 5.3.0
ocaml 2.ml 464ms 1.5ms 9.3MB 453ms 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 462.9MB 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 542ms 2.0ms 57.1MB 510ms 17ms ocaml 5.3.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 3902ms 1.6ms 3.4MB 3890ms 0ms haxe/hl/c 4.3.6
ocaml 2.ml 4558ms 6.5ms 6.3MB 4543ms 0ms ocaml 5.3.0
haxe 1.hx timeout 0.0ms 6.9MB 4990ms 0ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.9MB 4990ms 0ms haxe/hl/jit 1.16.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 985ms 5.5ms 3.1MB 973ms 0ms haxe/hl/c 4.3.6
ocaml 2.ml 1146ms 5.3ms 6.1MB 1137ms 0ms ocaml 5.3.0
haxe 1.hx 2400ms 2.6ms 6.6MB 2390ms 0ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.9MB 4990ms 0ms haxe/hl/jit 1.16.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 252ms 2.8ms 3.0MB 240ms 0ms haxe/hl/c 4.3.6
ocaml 2.ml 296ms 9.1ms 5.2MB 287ms 0ms ocaml 5.3.0
haxe 1.hx 603ms 0.4ms 5.4MB 590ms 0ms haxe/cpp 4.3.6
haxe 1.hx 2305ms 1.8ms 3.7MB 2297ms 0ms haxe/hl/jit 1.16.0