Programming Language and compiler
Benchmarks

Nim 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
nim 2.nim 934ms 16ms 34.6MB 917ms 3ms nim 2.2.2
nim 2.nim 960ms 15ms 34.9MB 947ms 0ms nim/clang 2.2.2
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
nim 2.nim 88ms 1.6ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 91ms 2.6ms 5.8MB 80ms 0ms nim/clang 2.2.2
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

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1460ms 7.9ms 63.8MB 1380ms 63ms ruby/yjit 3.4.2
ruby 1.rb 1856ms 18ms 63.1MB 1783ms 60ms ruby 3.4.2
nim 1.nim timeout 0.0ms 559.4MB 2500ms 2040ms nim 2.2.2
nim 1.nim timeout 0.0ms 555.8MB 2460ms 2080ms nim/clang 2.2.2
ruby 1.rb timeout 0.0ms 357.5MB 4680ms 1437ms truffleruby 24.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 155ms 0.2ms 25.8MB 127ms 17ms ruby/yjit 3.4.2
ruby 1.rb 180ms 0.8ms 25.1MB 150ms 17ms ruby 3.4.2
nim 1.nim 4313ms 32ms 519.8MB 2100ms 1790ms nim/clang 2.2.2
nim 1.nim 4341ms 20ms 519.4MB 2177ms 1743ms nim 2.2.2
ruby 1.rb timeout 0.0ms 332.3MB 4803ms 1357ms truffleruby 24.2.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 187ms 1.4ms 1.5MB 180ms 0ms nim 2.2.2
nim 2.nim 236ms 2.8ms 1.8MB 223ms 0ms nim/clang 2.2.2
nim 1.nim 554ms 2.2ms 1.8MB 453ms 90ms nim/clang 2.2.2
nim 1.nim 575ms 2.2ms 1.5MB 473ms 90ms nim 2.2.2
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
nim 2.nim 21ms 0.6ms 1.5MB 10ms 0ms nim 2.2.2
nim 2.nim 26ms 0.3ms 1.8MB 20ms 0ms nim/clang 2.2.2
nim 1.nim 58ms 0.8ms 1.8MB 40ms 0ms nim/clang 2.2.2
nim 1.nim 61ms 0.3ms 1.5MB 40ms 10ms nim 2.2.2
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
nim 1.nim 1.1ms 0.1ms 1.5MB 0ms 0ms nim 2.2.2
nim 1.nim 1.1ms 0.1ms 1.9MB 0ms 0ms nim/clang 2.2.2
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
nim 2.nim 110ms 0.4ms 1.4MB 100ms 0ms nim 2.2.2
nim 2.nim 114ms 0.7ms 1.9MB 110ms 0ms nim/clang 2.2.2
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
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 326ms 2.2ms 1.4MB 320ms 0ms nim 2.2.2
nim 2.nim 340ms 0.3ms 1.6MB 330ms 0ms nim/clang 2.2.2
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
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 49ms 0.2ms 1.5MB 40ms 0ms nim/clang 2.2.2
nim 2.nim 52ms 1.4ms 1.3MB 43ms 0ms nim 2.2.2
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
nim 1.nim 446ms 2.7ms 1.5MB 440ms 0ms nim/clang 2.2.2
nim 1.nim 479ms 2.2ms 1.3MB 470ms 0ms nim 2.2.2
ruby 1-m.rb 515ms 15ms 357.6MB 1040ms 137ms truffleruby 24.2.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 386ms 0.2ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 576ms 0.7ms 4.4MB 570ms 0ms nim 2.2.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 18ms 0.2ms 1.9MB 10ms 0ms nim/clang 2.2.2
nim 1.nim 26ms 0.9ms 1.6MB 20ms 0ms nim 2.2.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 532ms 4.4ms 34.6MB 513ms 0ms nim 2.2.2
nim 1.nim 609ms 7.4ms 34.9MB 593ms 0ms nim/clang 2.2.2
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
nim 1.nim 113ms 0.7ms 9.6MB 100ms 0ms nim 2.2.2
nim 1.nim 134ms 2.0ms 9.9MB 123ms 0ms nim/clang 2.2.2
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
nim 2.nim 319ms 0.9ms 1.8MB 310ms 0ms nim 2.2.2
nim 2.nim 342ms 1.8ms 2.0MB 330ms 0ms nim/clang 2.2.2
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
nim 2.nim 34ms 0.6ms 1.8MB 30ms 0ms nim 2.2.2
nim 2.nim 38ms 0.5ms 2.0MB 30ms 0ms nim/clang 2.2.2
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
nim 1.nim 289ms 6.8ms 41.5MB 277ms 0ms nim 2.2.2
nim 1.nim 329ms 8.1ms 41.8MB 317ms 0ms nim/clang 2.2.2
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
nim 1.nim 53ms 2.7ms 11.5MB 40ms 0ms nim 2.2.2
nim 1.nim 56ms 3.9ms 11.8MB 43ms 0ms nim/clang 2.2.2
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
nim 1.nim 1632ms 4.8ms 164.1MB 1603ms 20ms nim/clang 2.2.2
nim 1.nim 1698ms 8.9ms 163.9MB 1667ms 13ms nim 2.2.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 172ms 1.7ms 20.9MB 160ms 0ms nim/clang 2.2.2
nim 1.nim 178ms 1.9ms 20.6MB 163ms 0ms nim 2.2.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 3587ms 0.7ms 1.6MB 3580ms 0ms nim/clang 2.2.2
nim 1.nim 3592ms 2.0ms 1.4MB 3580ms 0ms nim 2.2.2
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
nim 1.nim 900ms 0.9ms 1.5MB 890ms 0ms nim/clang 2.2.2
nim 1.nim 902ms 2.5ms 1.3MB 890ms 0ms nim 2.2.2
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
nim 1.nim 227ms 0.4ms 1.5MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 227ms 1.0ms 1.3MB 220ms 0ms nim 2.2.2
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