Programming Language and compiler
Benchmarks

OCaml VS Ruby 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
ocaml 1.ml 3076ms 70ms 157.2MB 2993ms 73ms ocaml 5.3.0
ruby 1.rb 4816ms 115ms 110.0MB 4720ms 83ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 70.6MB 4940ms 47ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 767.2MB 6573ms 687ms truffleruby 24.2.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 223ms 5.5ms 19.1MB 203ms 3ms ocaml 5.3.0
ruby 1.rb 493ms 0.5ms 20.3MB 467ms 7ms ruby/yjit 3.4.2
ruby 1-m.rb 559ms 80ms 422.2MB 1103ms 163ms truffleruby 24.2.0
ruby 1.rb 937ms 4.5ms 19.6MB 913ms 10ms ruby 3.4.2

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
ruby 6.rb 2064ms 15ms 23.0MB 2037ms 10ms ruby/yjit 3.4.2
ruby 6-m.rb 2289ms 237ms 407.7MB 5830ms 393ms truffleruby 24.2.0
ruby 6.rb 3860ms 29ms 22.5MB 3833ms 10ms ruby 3.4.2

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
ruby 6.rb 267ms 1.8ms 15.0MB 247ms 7ms ruby/yjit 3.4.2
ruby 6.rb 439ms 3.5ms 14.6MB 420ms 7ms ruby 3.4.2
ruby 6-m.rb 753ms 86ms 387.0MB 1863ms 167ms truffleruby 24.2.0

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
ruby 1.rb 36ms 0.6ms 142.1MB 12ms 30ms truffleruby 24.2.0
ruby 1.rb 53ms 1.6ms 13.0MB 38ms 2ms ruby/yjit 3.4.2
ruby 1.rb 54ms 2.2ms 12.9MB 40ms 4ms ruby 3.4.2

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
ruby 1.rb 331ms 2.2ms 13.5MB 317ms 0ms ruby/yjit 3.4.2
ruby 1.rb 533ms 10ms 13.0MB 517ms 3ms ruby 3.4.2
ruby 1-m.rb 663ms 30ms 373.5MB 1203ms 143ms truffleruby 24.2.0

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
ruby 1.rb 878ms 1.4ms 13.5MB 860ms 7ms ruby/yjit 3.4.2
ruby 1-m.rb 1224ms 5.7ms 410.2MB 1700ms 163ms truffleruby 24.2.0
ruby 1.rb 1482ms 9.8ms 13.0MB 1467ms 0ms ruby 3.4.2

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
ruby 1.rb 194ms 3.4ms 13.5MB 173ms 3ms ruby/yjit 3.4.2
ruby 1.rb 292ms 3.1ms 12.9MB 273ms 3ms ruby 3.4.2
ruby 1-m.rb 513ms 35ms 359.3MB 960ms 140ms truffleruby 24.2.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
ruby 1-m.rb 4407ms 298ms 569.0MB 11110ms 383ms truffleruby 24.2.0
ruby 1.rb timeout 0.0ms 93.6MB 4933ms 53ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 94.8MB 4940ms 47ms ruby/yjit 3.4.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 149ms 1.0ms 21.7MB 133ms 7ms ocaml 5.3.0
ocaml 2.ml 362ms 2.4ms 27.7MB 343ms 3ms ocaml 5.3.0
ruby 1-m.rb 1990ms 144ms 479.8MB 5163ms 233ms truffleruby 24.2.0
ruby 1.rb 3411ms 25ms 38.3MB 3370ms 27ms ruby/yjit 3.4.2
ruby 1.rb 4428ms 16ms 37.8MB 4393ms 20ms ruby 3.4.2

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
ruby 2.rb 824ms 13ms 322.6MB 1073ms 120ms truffleruby 24.2.0
ruby 2.rb timeout 0.0ms 12.9MB 4983ms 7ms ruby 3.4.2
ruby 2.rb timeout 0.0ms 13.5MB 4977ms 7ms ruby/yjit 3.4.2

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
ruby 2-m.rb 321ms 4.1ms 314.2MB 577ms 113ms truffleruby 24.2.0
ruby 2.rb 1076ms 10ms 13.6MB 1057ms 7ms ruby/yjit 3.4.2
ruby 2.rb 2866ms 27ms 12.9MB 2847ms 3ms ruby 3.4.2

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
ruby 1.rb timeout 0.0ms 325.4MB 4853ms 133ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 326.9MB 4847ms 140ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 695.7MB 5067ms 153ms truffleruby 24.2.0

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
ruby 1-m.rb 1751ms 45ms 484.6MB 2477ms 160ms truffleruby 24.2.0
ruby 1.rb 3479ms 36ms 131.8MB 3387ms 77ms ruby/yjit 3.4.2
ruby 1.rb 4497ms 12ms 131.1MB 4407ms 77ms ruby 3.4.2

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
ocaml 2.ml 4568ms 13ms 6.4MB 4557ms 0ms ocaml 5.3.0
ruby 4.rb timeout 0.0ms 13.0MB 4983ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.2
ruby 4.rb timeout 0.0ms 455.8MB 5153ms 247ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 1153ms 6.9ms 6.1MB 1143ms 0ms ocaml 5.3.0
ruby 4.rb 4895ms 35ms 451.9MB 5170ms 223ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 12.9MB 4983ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 290ms 2.8ms 5.2MB 280ms 0ms ocaml 5.3.0
ruby 4.rb 1440ms 22ms 426.8MB 1757ms 150ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4983ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.8MB 4983ms 3ms ruby/yjit 3.4.2