Kotlin VS Ruby benchmarks

Current benchmark data was generated on Thu Feb 01 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 469ms 5.8ms 575.8MB 550ms 80ms kotlin/jvm 21
kotlin 1-m.kt 3056ms 54ms 248.5MB 5070ms 700ms kotlin/native 1.8.21
ruby 1.rb 4037ms 417ms 123.9MB 3920ms 100ms ruby/yjit 3.3.0
ruby 1.rb timeout 0.0ms 85.3MB 4930ms 53ms ruby 3.3.0
ruby 1.rb timeout 0.0ms 679.9MB 9080ms 607ms truffleruby 23.1.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 99ms 0.6ms 158.3MB 107ms 30ms kotlin/jvm 21
kotlin 1-m.kt 270ms 4.6ms 28.5MB 430ms 60ms kotlin/native 1.8.21
ruby 1.rb 408ms 6.3ms 36.4MB 367ms 27ms ruby/yjit 3.3.0
ruby 1.rb 856ms 5.9ms 36.4MB 813ms 20ms ruby 3.3.0
ruby 1-m.rb 910ms 25ms 437.3MB 2027ms 183ms truffleruby 23.1.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1431ms 5.5ms 78.5MB 1337ms 77ms ruby/yjit 3.3.0
kotlin 2-m.kt 1773ms 358ms 242.2MB 6577ms 93ms kotlin/jvm 21
ruby 1.rb 1779ms 29ms 78.3MB 1693ms 70ms ruby 3.3.0
kotlin 1.kt 2141ms 6.2ms 220.2MB 3003ms 67ms kotlin/jvm 21
kotlin 1.kt timeout 0.0ms 14.8MB 6140ms 457ms kotlin/native 1.8.21
kotlin 2-m.kt timeout 0.0ms 72.9MB 19063ms 127ms kotlin/native 1.8.21
ruby 1.rb timeout 0.0ms 717.5MB 4877ms 1427ms truffleruby 23.1.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 169ms 1.3ms 40.5MB 127ms 27ms ruby/yjit 3.3.0
ruby 1.rb 190ms 2.2ms 40.3MB 133ms 40ms ruby 3.3.0
kotlin 2-m.kt 404ms 0.7ms 32.8MB 1477ms 27ms kotlin/native 1.8.21
kotlin 1-m.kt 465ms 18ms 74.9MB 1057ms 50ms kotlin/jvm 21
kotlin 1.kt 683ms 4.2ms 10.8MB 820ms 57ms kotlin/native 1.8.21
kotlin 2-m.kt 912ms 14ms 99.8MB 3203ms 77ms kotlin/jvm 21
ruby 1.rb timeout 0.0ms 730.8MB 4667ms 1557ms truffleruby 23.1.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.3ms 0.1ms 4.7MB 0ms 0ms kotlin/native 1.8.21
ruby 1.rb 41ms 0.2ms 161.9MB 8ms 32ms truffleruby 23.1.2
kotlin 1.kt 58ms 4.5ms 47.3MB 58ms 14ms kotlin/jvm 21
ruby 1.rb 70ms 2.0ms 28.3MB 46ms 12ms ruby 3.3.0
ruby 1.rb 72ms 1.8ms 28.4MB 46ms 16ms ruby/yjit 3.3.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 3188ms 2764ms 353.0MB 15630ms 2370ms kotlin/jvm 21
kotlin 1.kt timeout 0.0ms 405.5MB 16613ms 2393ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 2166ms 328ms 250.2MB 3897ms 460ms kotlin/jvm 21
kotlin 1-m.kt 2399ms 24ms 215.3MB 6757ms 710ms 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 295ms 2.6ms 49.8MB 250ms 30ms ruby 3.3.0
ruby 1.rb 305ms 2.8ms 49.0MB 257ms 33ms ruby/yjit 3.3.0
kotlin 1-m.kt 829ms 56ms 212.4MB 2217ms 83ms kotlin/jvm 21
ruby 1-m.rb 4664ms 272ms 508.1MB 12213ms 377ms truffleruby 23.1.2

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 2261ms 6.5ms 170.4MB 2133ms 110ms ruby/yjit 3.3.0
ruby 1.rb 2266ms 17ms 168.1MB 2147ms 103ms ruby 3.3.0
kotlin 1-m.kt 2357ms 60ms 1045.0MB 5193ms 157ms kotlin/jvm 21
ruby 1.rb timeout 0.0ms 566.0MB 13103ms 413ms truffleruby 23.1.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 179ms 1.1ms 94.8MB 310ms 17ms kotlin/jvm 21
kotlin 2-m.kt 199ms 5.9ms 100.7MB 413ms 33ms kotlin/jvm 21
kotlin 2.kt 303ms 2.6ms 7.8MB 433ms 10ms kotlin/native 1.8.21
ruby 1.rb 335ms 1.4ms 28.6MB 307ms 13ms ruby/yjit 3.3.0
kotlin 1.kt 507ms 10ms 7.8MB 607ms 3ms kotlin/native 1.8.21
ruby 1.rb 536ms 12ms 28.4MB 503ms 20ms ruby 3.3.0
ruby 1-m.rb 658ms 38ms 365.9MB 1090ms 147ms truffleruby 23.1.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 302ms 3.3ms 212.9MB 523ms 57ms kotlin/jvm 21
kotlin 1.kt 326ms 4.4ms 204.4MB 440ms 33ms kotlin/jvm 21
ruby 1.rb 860ms 11ms 28.6MB 823ms 20ms ruby/yjit 3.3.0
kotlin 2.kt 911ms 18ms 7.8MB 1313ms 50ms kotlin/native 1.8.21
ruby 1.rb 1229ms 22ms 408.0MB 1667ms 170ms truffleruby 23.1.2
ruby 1.rb 1440ms 9.3ms 28.3MB 1403ms 23ms ruby 3.3.0
kotlin 1.kt 1534ms 5.9ms 7.8MB 1860ms 30ms kotlin/native 1.8.21

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2.kt 141ms 2.9ms 5.8MB 193ms 3ms kotlin/native 1.8.21
kotlin 1-m.kt 143ms 4.2ms 90.6MB 260ms 37ms kotlin/jvm 21
kotlin 2-m.kt 158ms 11ms 95.6MB 307ms 40ms kotlin/jvm 21
kotlin 1.kt 180ms 1.3ms 5.8MB 237ms 0ms kotlin/native 1.8.21
ruby 1.rb 202ms 0.6ms 28.6MB 177ms 13ms ruby/yjit 3.3.0
ruby 1.rb 299ms 2.9ms 28.3MB 270ms 17ms ruby 3.3.0
ruby 1-m.rb 526ms 34ms 355.4MB 967ms 143ms truffleruby 23.1.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 352ms 3.1ms 677.8MB 383ms 80ms kotlin/jvm 21
kotlin 1-m.kt 1499ms 16ms 136.6MB 2307ms 317ms kotlin/native 1.8.21
ruby 1.rb timeout 0.0ms 87.8MB 4917ms 73ms ruby 3.3.0
ruby 1.rb timeout 0.0ms 88.2MB 4917ms 67ms ruby/yjit 3.3.0
ruby 1.rb timeout 0.0ms 575.9MB 12800ms 437ms truffleruby 23.1.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 129ms 0.4ms 206.5MB 147ms 47ms kotlin/jvm 21
kotlin 1-m.kt 323ms 19ms 40.4MB 467ms 77ms kotlin/native 1.8.21
ruby 1-m.rb 2642ms 152ms 618.4MB 6900ms 303ms truffleruby 23.1.2
ruby 1.rb 3031ms 1.4ms 46.8MB 2987ms 30ms ruby/yjit 3.3.0
ruby 1.rb 4013ms 75ms 46.5MB 3970ms 23ms ruby 3.3.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 406ms 3.4ms 4.6MB 393ms 0ms kotlin/native 1.8.21
kotlin 1.kt 442ms 1.8ms 49.2MB 497ms 7ms kotlin/jvm 21
ruby 2.rb 953ms 118ms 319.9MB 1190ms 110ms truffleruby 23.1.2
ruby 2.rb timeout 0.0ms 28.1MB 4967ms 17ms ruby 3.3.0
ruby 2.rb timeout 0.0ms 28.5MB 4963ms 20ms ruby/yjit 3.3.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 44ms 0.9ms 4.6MB 33ms 0ms kotlin/native 1.8.21
kotlin 1-m.kt 120ms 0.3ms 49.4MB 167ms 17ms kotlin/jvm 21
ruby 2-m.rb 319ms 5.4ms 312.4MB 540ms 113ms truffleruby 23.1.2
ruby 2.rb 1455ms 8.4ms 28.4MB 1423ms 17ms ruby/yjit 3.3.0
ruby 2.rb 2876ms 37ms 28.1MB 2840ms 20ms ruby 3.3.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 3719ms 43ms 355.7MB 4563ms 90ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 7.5MB 6490ms 283ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 8.2MB 4980ms 173ms kotlin/native 1.8.21
ruby 1.rb timeout 0.0ms 108.6MB 4923ms 63ms ruby 3.3.0
ruby 1.rb timeout 0.0ms 108.8MB 4913ms 70ms ruby/yjit 3.3.0
ruby 1.rb timeout 0.0ms 456.4MB 13293ms 427ms truffleruby 23.1.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 976ms 35ms 353.3MB 1717ms 97ms kotlin/jvm 21
ruby 1.rb 1680ms 2.7ms 109.0MB 1597ms 67ms ruby/yjit 3.3.0
ruby 1.rb 1696ms 16ms 108.5MB 1610ms 70ms ruby 3.3.0
ruby 1-m.rb 1925ms 70ms 409.5MB 5020ms 253ms truffleruby 23.1.2
kotlin 1n.kt timeout 0.0ms 7.4MB 6410ms 283ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 8.2MB 5020ms 130ms 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 173.0MB 5387ms 50ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 279.0MB 4880ms 1073ms 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 825ms 28ms 134.0MB 1250ms 40ms kotlin/jvm 21
kotlin 1n.kt 3285ms 241ms 65.0MB 4160ms 13ms 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 3058ms 41ms 233.9MB 3943ms 80ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 975ms 45ms 233.6MB 1800ms 47ms kotlin/jvm 21