Programming Language and compiler
Benchmarks

OCaml VS Ruby benchmarks

Current benchmark data was generated on Mon Apr 14 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 3140ms 30ms 157.0MB 3057ms 70ms ocaml 5.3.0
ruby 1.rb 4815ms 21ms 109.4MB 4710ms 90ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 70.5MB 4953ms 37ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 758.8MB 6567ms 693ms truffleruby 24.2.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 226ms 2.6ms 19.2MB 210ms 0ms ocaml 5.3.0
ruby 1.rb 492ms 5.0ms 20.4MB 467ms 10ms ruby/yjit 3.4.2
ruby 1-m.rb 537ms 66ms 418.7MB 1060ms 157ms truffleruby 24.2.0
ruby 1.rb 937ms 8.8ms 19.6MB 910ms 13ms 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 2917ms 2.7ms 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 249ms 3.0ms 4.9MB 240ms 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 345ms 0.4ms 24.9MB 333ms 0ms ocaml 5.3.0
ruby 6.rb 2050ms 4.6ms 23.0MB 2020ms 13ms ruby/yjit 3.4.2
ruby 6-m.rb 2229ms 245ms 437.5MB 5773ms 363ms truffleruby 24.2.0
ruby 6.rb 3848ms 19ms 22.4MB 3823ms 13ms ruby 3.4.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 39ms 0.6ms 7.5MB 30ms 0ms ocaml 5.3.0
ruby 6.rb 267ms 5.3ms 15.0MB 250ms 0ms ruby/yjit 3.4.2
ruby 6.rb 439ms 1.1ms 14.5MB 420ms 3ms ruby 3.4.2
ruby 6-m.rb 828ms 16ms 375.5MB 2057ms 180ms 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 0.0ms 5.1MB 0ms 0ms ocaml 5.3.0
ruby 1.rb 35ms 0.5ms 141.8MB 14ms 24ms truffleruby 24.2.0
ruby 1.rb 51ms 1.1ms 12.9MB 38ms 0ms ruby 3.4.2
ruby 1.rb 53ms 1.6ms 13.1MB 38ms 2ms ruby/yjit 3.4.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 188ms 1.5ms 6.4MB 180ms 0ms ocaml 5.3.0
ruby 1.rb 334ms 6.3ms 13.5MB 317ms 3ms ruby/yjit 3.4.2
ruby 1.rb 528ms 4.6ms 12.9MB 513ms 3ms ruby 3.4.2
ruby 1-m.rb 680ms 43ms 373.6MB 1197ms 137ms truffleruby 24.2.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 542ms 24ms 6.6MB 530ms 0ms ocaml 5.3.0
ruby 1.rb 883ms 3.5ms 13.5MB 860ms 10ms ruby/yjit 3.4.2
ruby 1-m.rb 1207ms 46ms 407.2MB 1677ms 157ms truffleruby 24.2.0
ruby 1.rb 1475ms 9.5ms 13.0MB 1453ms 10ms ruby 3.4.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 78ms 1.1ms 5.9MB 70ms 0ms ocaml 5.3.0
ruby 1.rb 192ms 1.4ms 13.5MB 177ms 7ms ruby/yjit 3.4.2
ruby 1.rb 294ms 2.8ms 12.9MB 280ms 3ms ruby 3.4.2
ruby 1-m.rb 515ms 15ms 357.6MB 1040ms 137ms truffleruby 24.2.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1141ms 35ms 70.2MB 1100ms 30ms ocaml 5.3.0
ocaml 2.ml 2156ms 13ms 91.8MB 2103ms 37ms ocaml 5.3.0
ruby 1-m.rb 4155ms 538ms 542.6MB 10537ms 360ms truffleruby 24.2.0
ruby 1.rb timeout 0.0ms 93.6MB 4933ms 50ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 94.1MB 4943ms 40ms ruby/yjit 3.4.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 161ms 4.4ms 21.6MB 143ms 7ms ocaml 5.3.0
ocaml 2.ml 362ms 1.5ms 27.7MB 343ms 3ms ocaml 5.3.0
ruby 1-m.rb 2026ms 131ms 594.1MB 5157ms 270ms truffleruby 24.2.0
ruby 1.rb 3422ms 26ms 38.3MB 3383ms 23ms ruby/yjit 3.4.2
ruby 1.rb 4463ms 59ms 37.8MB 4427ms 27ms ruby 3.4.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 374ms 1.4ms 5.3MB 363ms 0ms ocaml 5.3.0
ruby 2.rb 825ms 4.5ms 309.8MB 1053ms 117ms truffleruby 24.2.0
ruby 2.rb timeout 0.0ms 12.9MB 4987ms 0ms ruby 3.4.2
ruby 2.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 41ms 1.6ms 5.2MB 30ms 0ms ocaml 5.3.0
ruby 2-m.rb 308ms 6.2ms 310.0MB 540ms 117ms truffleruby 24.2.0
ruby 2.rb 1062ms 3.2ms 13.5MB 1047ms 3ms ruby/yjit 3.4.2
ruby 2.rb 2806ms 75ms 12.9MB 2787ms 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 1018ms 5.8ms 550.4MB 963ms 40ms ocaml 5.3.0
ocaml 2.ml 1884ms 9.4ms 17.2MB 1867ms 0ms ocaml 5.3.0
ruby 1.rb timeout 0.0ms 325.4MB 4860ms 130ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 327.0MB 4853ms 137ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 703.0MB 5090ms 140ms truffleruby 24.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 203ms 4.9ms 140.7MB 183ms 10ms ocaml 5.3.0
ocaml 2.ml 463ms 1.3ms 9.1MB 450ms 0ms ocaml 5.3.0
ruby 1.rb 1725ms 19ms 476.7MB 2387ms 160ms truffleruby 24.2.0
ruby 1.rb 3412ms 46ms 131.8MB 3323ms 73ms ruby/yjit 3.4.2
ruby 1.rb 4494ms 36ms 131.1MB 4403ms 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 462.9MB 4810ms 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 551ms 8.1ms 57.1MB 517ms 23ms 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 4555ms 3.1ms 6.3MB 4543ms 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 7ms ruby/yjit 3.4.2
ruby 4.rb timeout 0.0ms 434.6MB 5167ms 233ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 1144ms 2.0ms 6.1MB 1137ms 0ms ocaml 5.3.0
ruby 4.rb 4868ms 23ms 439.6MB 5153ms 217ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4987ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 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 294ms 3.8ms 5.2MB 287ms 0ms ocaml 5.3.0
ruby 4.rb 1435ms 5.1ms 375.6MB 1770ms 137ms 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 4980ms 3ms ruby/yjit 3.4.2