Programming Language and compiler
Benchmarks

OCaml VS Ruby benchmarks

Current benchmark data was generated on Tue Mar 25 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
ruby 1-m.rb 1604ms 2779ms 798.2MB 6547ms 637ms truffleruby 24.2.0
ocaml 1.ml 3139ms 30ms 157.2MB 3050ms 73ms ocaml 5.3.0
ruby 1.rb 4929ms 11ms 110.0MB 4830ms 87ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 70.6MB 4943ms 43ms ruby 3.4.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 228ms 11ms 19.2MB 213ms 0ms ocaml 5.3.0
ruby 1.rb 497ms 4.3ms 20.3MB 473ms 10ms ruby/yjit 3.4.2
ruby 1-m.rb 605ms 52ms 425.3MB 1203ms 173ms truffleruby 24.2.0
ruby 1.rb 935ms 7.2ms 19.6MB 910ms 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 2918ms 4.8ms 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 245ms 1.4ms 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 345ms 0.3ms 24.8MB 330ms 0ms ocaml 5.3.0
ruby 6.rb 2067ms 17ms 23.0MB 2040ms 13ms ruby/yjit 3.4.2
ruby 6-m.rb 2128ms 75ms 365.9MB 5427ms 350ms truffleruby 24.2.0
ruby 6.rb 3896ms 43ms 22.5MB 3870ms 17ms 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 262ms 3.7ms 15.0MB 243ms 7ms ruby/yjit 3.4.2
ruby 6.rb 440ms 7.9ms 14.5MB 420ms 3ms ruby 3.4.2
ruby 6-m.rb 787ms 58ms 380.4MB 1943ms 177ms 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 0.2ms 5.1MB 0ms 0ms ocaml 5.3.0
ruby 1.rb 38ms 1.6ms 142.2MB 14ms 28ms truffleruby 24.2.0
ruby 1.rb 52ms 1.2ms 12.9MB 38ms 4ms ruby 3.4.2
ruby 1.rb 54ms 2.1ms 13.0MB 40ms 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 178ms 2.2ms 6.4MB 170ms 0ms ocaml 5.3.0
ruby 1.rb 332ms 5.1ms 13.5MB 313ms 0ms ruby/yjit 3.4.2
ruby 1.rb 524ms 1.2ms 13.0MB 510ms 0ms ruby 3.4.2
ruby 1-m.rb 710ms 32ms 365.2MB 1233ms 153ms truffleruby 24.2.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 535ms 18ms 6.6MB 523ms 0ms ocaml 5.3.0
ruby 1.rb 886ms 4.7ms 13.5MB 863ms 10ms ruby/yjit 3.4.2
ruby 1-m.rb 1259ms 50ms 413.3MB 1827ms 197ms truffleruby 24.2.0
ruby 1.rb 1482ms 23ms 13.0MB 1463ms 7ms ruby 3.4.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 77ms 0.5ms 6.1MB 70ms 0ms ocaml 5.3.0
ruby 1.rb 195ms 2.2ms 13.5MB 177ms 7ms ruby/yjit 3.4.2
ruby 1.rb 289ms 2.1ms 12.9MB 273ms 0ms ruby 3.4.2
ruby 1-m.rb 514ms 28ms 357.0MB 993ms 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 1104ms 1.1ms 70.3MB 1060ms 30ms ocaml 5.3.0
ocaml 2.ml 2279ms 5.8ms 91.8MB 2220ms 43ms ocaml 5.3.0
ruby 1-m.rb 3955ms 22ms 606.4MB 10090ms 377ms truffleruby 24.2.0
ruby 1.rb timeout 0.0ms 94.3MB 4940ms 50ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 94.1MB 4933ms 53ms 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 3.1ms 21.6MB 130ms 7ms ocaml 5.3.0
ocaml 2.ml 396ms 3.4ms 27.7MB 377ms 7ms ocaml 5.3.0
ruby 1-m.rb 2157ms 107ms 616.5MB 5503ms 283ms truffleruby 24.2.0
ruby 1.rb 3496ms 172ms 38.3MB 3457ms 23ms ruby/yjit 3.4.2
ruby 1.rb 4445ms 2.9ms 37.8MB 4413ms 17ms 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 0.4ms 5.3MB 367ms 0ms ocaml 5.3.0
ruby 2.rb 846ms 5.3ms 311.6MB 1087ms 127ms 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 4987ms 0ms 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 0.7ms 5.2MB 30ms 0ms ocaml 5.3.0
ruby 2-m.rb 313ms 8.1ms 310.0MB 540ms 123ms truffleruby 24.2.0
ruby 2.rb 1065ms 2.9ms 13.5MB 1043ms 0ms ruby/yjit 3.4.2
ruby 2.rb 2836ms 76ms 12.9MB 2817ms 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 1019ms 4.4ms 544.4MB 960ms 43ms ocaml 5.3.0
ocaml 2.ml 1896ms 11ms 17.2MB 1883ms 0ms ocaml 5.3.0
ruby 1.rb timeout 0.0ms 325.4MB 4847ms 137ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 327.0MB 4840ms 143ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 707.0MB 5073ms 153ms truffleruby 24.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 197ms 0.6ms 128.8MB 173ms 10ms ocaml 5.3.0
ocaml 2.ml 469ms 5.3ms 9.1MB 457ms 0ms ocaml 5.3.0
ruby 1-m.rb 1762ms 23ms 498.0MB 2533ms 183ms truffleruby 24.2.0
ruby 1.rb 3732ms 397ms 131.8MB 3640ms 77ms ruby/yjit 3.4.2
ruby 1.rb 4536ms 21ms 131.1MB 4440ms 80ms 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 462.7MB 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 550ms 6.1ms 57.1MB 507ms 27ms 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 4585ms 15ms 6.4MB 4573ms 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 454.8MB 5133ms 270ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 1148ms 6.8ms 6.1MB 1140ms 0ms ocaml 5.3.0
ruby 4.rb 4888ms 24ms 442.4MB 5167ms 227ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4983ms 3ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 0ms ruby/yjit 3.4.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 296ms 5.1ms 5.2MB 287ms 0ms ocaml 5.3.0
ruby 4.rb 1433ms 18ms 370.1MB 1793ms 130ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4980ms 7ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.8MB 4980ms 7ms ruby/yjit 3.4.2