Programming Language and compiler
Benchmarks

Kotlin VS Ruby benchmarks

Current benchmark data was generated on Tue Dec 31 2024, 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
kotlin 1.kt 455ms 16ms 575.5MB 540ms 63ms kotlin/jvm 21
kotlin 1-m.kt 2928ms 6.8ms 248.5MB 4967ms 627ms kotlin/native 1.8.21
ruby 1-m.rb 4344ms 5.3ms 826.4MB 6090ms 430ms truffleruby 24.1.1
ruby 1.rb 4409ms 29ms 110.3MB 4317ms 80ms ruby/yjit 3.4.1
ruby 1.rb timeout 0.0ms 70.1MB 4953ms 33ms ruby 3.4.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 95ms 2.4ms 158.2MB 103ms 23ms kotlin/jvm 21
kotlin 1-m.kt 257ms 6.2ms 32.6MB 400ms 63ms kotlin/native 1.8.21
ruby 1.rb 455ms 2.2ms 20.4MB 437ms 3ms ruby/yjit 3.4.1
ruby 1-m.rb 553ms 55ms 431.2MB 1113ms 147ms truffleruby 24.1.1
ruby 1.rb 906ms 20ms 19.8MB 883ms 7ms ruby 3.4.1

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1314ms 25ms 63.9MB 1223ms 70ms ruby/yjit 3.4.1
ruby 1.rb 1787ms 48ms 63.1MB 1703ms 70ms ruby 3.4.1
kotlin 2-m.kt 1799ms 182ms 235.5MB 6667ms 90ms kotlin/jvm 21
kotlin 1.kt 2058ms 23ms 217.3MB 2833ms 57ms kotlin/jvm 21
kotlin 1.kt timeout 0.0ms 14.8MB 6030ms 500ms kotlin/native 1.8.21
kotlin 2-m.kt timeout 0.0ms 52.1MB 19097ms 113ms kotlin/native 1.8.21
ruby 1.rb timeout 0.0ms 724.7MB 4503ms 1623ms truffleruby 24.1.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 146ms 0.8ms 25.6MB 120ms 13ms ruby/yjit 3.4.1
ruby 1.rb 171ms 2.8ms 25.3MB 137ms 27ms ruby 3.4.1
kotlin 2-m.kt 366ms 8.9ms 38.2MB 1350ms 13ms kotlin/native 1.8.21
kotlin 1-m.kt 450ms 15ms 73.3MB 1017ms 37ms kotlin/jvm 21
kotlin 1.kt 646ms 7.8ms 10.8MB 807ms 53ms kotlin/native 1.8.21
kotlin 2-m.kt 757ms 71ms 99.7MB 2643ms 70ms kotlin/jvm 21
ruby 1.rb timeout 0.0ms 721.5MB 4623ms 1523ms truffleruby 24.1.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.3ms 0.2ms 4.7MB 0ms 0ms kotlin/native 1.8.21
ruby 1.rb 38ms 1.4ms 162.3MB 16ms 26ms truffleruby 24.1.1
ruby 1.rb 48ms 1.5ms 12.9MB 34ms 2ms ruby 3.4.1
ruby 1.rb 50ms 1.0ms 13.1MB 36ms 4ms ruby/yjit 3.4.1
kotlin 1.kt 55ms 4.2ms 47.4MB 46ms 14ms kotlin/jvm 21

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 4837ms 51ms 400.1MB 14360ms 2470ms kotlin/jvm 21
kotlin 1.kt timeout 0.0ms 405.3MB 16127ms 2747ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 2173ms 206ms 269.1MB 6403ms 597ms kotlin/jvm 21
kotlin 2.kt 2226ms 288ms 241.9MB 2337ms 253ms kotlin/jvm 21

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 233ms 2.1ms 30.2MB 207ms 13ms ruby/yjit 3.4.1
ruby 1.rb 239ms 6.8ms 28.5MB 203ms 27ms ruby 3.4.1
kotlin 1-m.kt 863ms 53ms 202.0MB 2353ms 83ms kotlin/jvm 21
ruby 1-m.rb 4775ms 26ms 570.2MB 12360ms 407ms truffleruby 24.1.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1968ms 14ms 133.1MB 1873ms 80ms ruby 3.4.1
ruby 1.rb 1969ms 6.9ms 165.4MB 1863ms 90ms ruby/yjit 3.4.1
kotlin 1-m.kt 2217ms 99ms 784.2MB 4773ms 140ms kotlin/jvm 21
ruby 1.rb timeout 0.0ms 545.5MB 13123ms 380ms truffleruby 24.1.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 172ms 3.8ms 94.9MB 283ms 30ms kotlin/jvm 21
kotlin 2-m.kt 188ms 5.4ms 102.2MB 397ms 30ms kotlin/jvm 21
kotlin 2.kt 285ms 1.3ms 7.8MB 413ms 3ms kotlin/native 1.8.21
ruby 1.rb 317ms 3.7ms 13.6MB 300ms 3ms ruby/yjit 3.4.1
kotlin 1.kt 501ms 15ms 7.8MB 600ms 7ms kotlin/native 1.8.21
ruby 1.rb 504ms 6.4ms 13.0MB 487ms 3ms ruby 3.4.1
ruby 1-m.rb 663ms 42ms 381.4MB 1143ms 123ms truffleruby 24.1.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 298ms 25ms 214.4MB 503ms 57ms kotlin/jvm 21
kotlin 1.kt 308ms 0.6ms 204.7MB 413ms 40ms kotlin/jvm 21
ruby 1.rb 841ms 7.5ms 13.6MB 820ms 7ms ruby/yjit 3.4.1
kotlin 2.kt 863ms 8.2ms 7.6MB 1240ms 50ms kotlin/native 1.8.21
ruby 1-m.rb 1156ms 5.6ms 420.8MB 1593ms 157ms truffleruby 24.1.1
ruby 1.rb 1442ms 62ms 13.0MB 1423ms 7ms ruby 3.4.1
kotlin 1.kt 1456ms 8.2ms 7.9MB 1763ms 17ms kotlin/native 1.8.21

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 132ms 1.5ms 92.4MB 250ms 20ms kotlin/jvm 21
kotlin 2.kt 134ms 3.9ms 5.7MB 190ms 0ms kotlin/native 1.8.21
kotlin 2-m.kt 159ms 9.9ms 90.8MB 307ms 27ms kotlin/jvm 21
kotlin 1.kt 162ms 4.0ms 5.8MB 207ms 0ms kotlin/native 1.8.21
ruby 1.rb 181ms 1.5ms 13.6MB 163ms 3ms ruby/yjit 3.4.1
ruby 1.rb 277ms 2.6ms 12.9MB 263ms 0ms ruby 3.4.1
ruby 1-m.rb 486ms 24ms 373.9MB 930ms 130ms truffleruby 24.1.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 329ms 3.6ms 677.6MB 360ms 70ms kotlin/jvm 21
kotlin 1-m.kt 1426ms 20ms 136.5MB 2193ms 330ms kotlin/native 1.8.21
ruby 1-m.rb 4396ms 209ms 539.7MB 11230ms 353ms truffleruby 24.1.1
ruby 1.rb timeout 0.0ms 93.6MB 4950ms 37ms ruby 3.4.1
ruby 1.rb timeout 0.0ms 97.4MB 4930ms 53ms ruby/yjit 3.4.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 122ms 2.0ms 206.5MB 157ms 23ms kotlin/jvm 21
kotlin 1-m.kt 283ms 1.7ms 40.4MB 410ms 57ms kotlin/native 1.8.21
ruby 1-m.rb 2130ms 105ms 524.5MB 5493ms 237ms truffleruby 24.1.1
ruby 1.rb 3111ms 12ms 38.4MB 3073ms 20ms ruby/yjit 3.4.1
ruby 1.rb 4124ms 30ms 37.8MB 4083ms 23ms ruby 3.4.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 386ms 8.6ms 4.7MB 373ms 0ms kotlin/native 1.8.21
kotlin 1.kt 422ms 3.5ms 49.7MB 463ms 13ms kotlin/jvm 21
ruby 2.rb 801ms 6.0ms 328.7MB 1027ms 110ms truffleruby 24.1.1
ruby 2.rb timeout 0.0ms 12.9MB 4980ms 3ms ruby 3.4.1
ruby 2.rb timeout 0.0ms 13.6MB 4980ms 3ms ruby/yjit 3.4.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 43ms 0.8ms 4.6MB 30ms 0ms kotlin/native 1.8.21
kotlin 1.kt 112ms 0.7ms 49.4MB 150ms 17ms kotlin/jvm 21
ruby 2-m.rb 305ms 2.6ms 328.7MB 530ms 113ms truffleruby 24.1.1
ruby 2.rb 999ms 5.7ms 13.6MB 980ms 3ms ruby/yjit 3.4.1
ruby 2.rb 2623ms 37ms 12.9MB 2607ms 3ms ruby 3.4.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 3505ms 35ms 353.8MB 4313ms 93ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 7.5MB 6350ms 310ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 13.3MB 4990ms 177ms kotlin/native 1.8.21
ruby 1.rb timeout 0.0ms 46.6MB 4940ms 43ms ruby 3.4.1
ruby 1.rb timeout 0.0ms 127.7MB 4900ms 83ms ruby/yjit 3.4.1
ruby 1.rb timeout 0.0ms 465.7MB 13040ms 457ms truffleruby 24.1.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 939ms 37ms 355.0MB 1617ms 70ms kotlin/jvm 21
ruby 1.rb 1574ms 13ms 46.1MB 1533ms 30ms ruby 3.4.1
ruby 1-m.rb 1703ms 16ms 424.0MB 4463ms 207ms truffleruby 24.1.1
ruby 1.rb 1721ms 12ms 124.3MB 1573ms 133ms ruby/yjit 3.4.1
kotlin 1n.kt timeout 0.0ms 7.4MB 6420ms 257ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 8.2MB 5000ms 150ms kotlin/native 1.8.21

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt timeout 0.0ms 171.4MB 5370ms 43ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 278.9MB 5463ms 463ms kotlin/native 1.8.21

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 759ms 8.2ms 133.8MB 1143ms 27ms kotlin/jvm 21
kotlin 1n.kt 2968ms 26ms 65.1MB 3653ms 3ms kotlin/native 1.8.21

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2939ms 35ms 231.8MB 3747ms 60ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 926ms 27ms 209.8MB 1550ms 43ms kotlin/jvm 21