Programming Language and compiler
Benchmarks

Kotlin VS Javascript benchmarks

Current benchmark data was generated on Wed Jan 22 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
kotlin 1.kt 487ms 33ms 1217.6MB 527ms 123ms kotlin/jvm 21
javascript 1-m.js 950ms 61ms 187.4MB 1437ms 247ms bun 1.1.45
javascript 1-m.js 1251ms 9.3ms 276.4MB 2177ms 160ms node 23.6.0
kotlin 1-m.kt 3121ms 31ms 248.4MB 5273ms 667ms kotlin/native 1.8.21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 95ms 0.8ms 79.4MB 77ms 23ms bun 1.1.45
kotlin 1.kt 99ms 1.2ms 158.3MB 103ms 30ms kotlin/jvm 21
javascript 1.js 127ms 2.0ms 82.4MB 117ms 33ms node 23.6.0
kotlin 1-m.kt 266ms 1.2ms 28.5MB 413ms 67ms kotlin/native 1.8.21

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 1594ms 14ms 93.6MB 1670ms 63ms node 23.6.0
kotlin 2-m.kt 1809ms 268ms 235.5MB 6717ms 107ms kotlin/jvm 21
kotlin 1.kt 2109ms 6.9ms 219.7MB 2923ms 63ms kotlin/jvm 21
javascript 1.js 2295ms 49ms 100.5MB 2313ms 70ms bun 1.1.45
kotlin 1.kt timeout 0.0ms 14.8MB 6100ms 460ms kotlin/native 1.8.21
kotlin 2-m.kt timeout 0.0ms 69.5MB 18963ms 130ms kotlin/native 1.8.21

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 156ms 1.2ms 76.5MB 137ms 23ms node 23.6.0
javascript 1.js 187ms 1.2ms 86.5MB 203ms 30ms bun 1.1.45
kotlin 2-m.kt 386ms 11ms 54.6MB 1410ms 27ms kotlin/native 1.8.21
kotlin 1-m.kt 463ms 6.2ms 73.9MB 1070ms 43ms kotlin/jvm 21
kotlin 1.kt 675ms 7.0ms 10.7MB 803ms 70ms kotlin/native 1.8.21
kotlin 2-m.kt 742ms 27ms 99.3MB 2503ms 90ms kotlin/jvm 21

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.4ms 0.5ms 4.7MB 0ms 0ms kotlin/native 1.8.21
javascript 1.js 13ms 0.5ms 32.3MB 0ms 10ms bun 1.1.45
javascript 1.js 31ms 0.6ms 52.0MB 14ms 8ms node 23.6.0
kotlin 1.kt 54ms 6.4ms 47.4MB 54ms 16ms kotlin/jvm 21

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.bun.js 363ms 16ms 71.3MB 133ms 420ms bun 1.1.45
kotlin 2-m.kt 807ms 1397ms 456.2MB 10660ms 1630ms kotlin/jvm 21
javascript 1.js 3147ms 48ms 195.6MB 2993ms 1487ms node 23.6.0
kotlin 1.kt timeout 0.0ms 393.0MB 16180ms 2813ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 127ms 14ms 54.5MB 30ms 93ms bun 1.1.45
javascript 1.js 382ms 1.7ms 84.8MB 360ms 103ms node 23.6.0
kotlin 2-m.kt 2185ms 260ms 239.6MB 4107ms 410ms kotlin/jvm 21
kotlin 1-m.kt 2220ms 269ms 241.0MB 6507ms 647ms kotlin/jvm 21

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 85ms 1.9ms 68.8MB 57ms 20ms bun 1.1.45
javascript 1.js 111ms 0.8ms 79.0MB 100ms 20ms node 23.6.0
kotlin 1-m.kt 832ms 44ms 198.9MB 2267ms 67ms kotlin/jvm 21

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 360ms 0.4ms 182.1MB 330ms 70ms bun 1.1.45
javascript 1.js 701ms 3.1ms 206.6MB 800ms 90ms node 23.6.0
kotlin 1-m.kt 2318ms 66ms 1048.1MB 5023ms 170ms kotlin/jvm 21

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 177ms 0.9ms 94.9MB 293ms 37ms kotlin/jvm 21
kotlin 2-m.kt 197ms 4.0ms 102.2MB 413ms 37ms kotlin/jvm 21
kotlin 2.kt 305ms 3.4ms 7.8MB 437ms 7ms kotlin/native 1.8.21
javascript 2.js 307ms 1.4ms 66.8MB 297ms 13ms node 23.6.0
kotlin 1.kt 521ms 19ms 7.8MB 623ms 3ms kotlin/native 1.8.21
javascript 1.js 559ms 2.7ms 64.5MB 543ms 13ms node 23.6.0
javascript 2.js 640ms 0.8ms 127.1MB 687ms 63ms bun 1.1.45
javascript 1.js 826ms 4.8ms 110.7MB 910ms 77ms bun 1.1.45

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 317ms 11ms 213.0MB 513ms 47ms kotlin/jvm 21
kotlin 1.kt 325ms 3.6ms 202.9MB 443ms 30ms kotlin/jvm 21
javascript 2.js 840ms 3.3ms 72.4MB 823ms 17ms node 23.6.0
kotlin 2.kt 907ms 26ms 7.8MB 1293ms 50ms kotlin/native 1.8.21
kotlin 1.kt 1564ms 31ms 7.9MB 1900ms 33ms kotlin/native 1.8.21
javascript 1.js 1586ms 6.0ms 71.4MB 1567ms 17ms node 23.6.0
javascript 2.js 1816ms 29ms 122.9MB 1960ms 60ms bun 1.1.45
javascript 1.js 2536ms 140ms 112.1MB 2847ms 137ms bun 1.1.45

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 141ms 6.8ms 90.5MB 270ms 27ms kotlin/jvm 21
kotlin 2.kt 141ms 4.0ms 5.7MB 193ms 0ms kotlin/native 1.8.21
kotlin 2-m.kt 152ms 8.3ms 93.7MB 300ms 33ms kotlin/jvm 21
javascript 1.js 164ms 2.5ms 61.8MB 150ms 7ms node 23.6.0
javascript 2.js 164ms 0.9ms 60.8MB 157ms 10ms node 23.6.0
kotlin 1.kt 178ms 5.5ms 5.9MB 230ms 0ms kotlin/native 1.8.21
javascript 1.js 323ms 3.2ms 133.9MB 347ms 83ms bun 1.1.45
javascript 2.js 359ms 16ms 126.8MB 380ms 60ms bun 1.1.45

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 344ms 1.7ms 679.6MB 383ms 67ms kotlin/jvm 21
javascript 1-m.js 485ms 10ms 141.8MB 623ms 127ms bun 1.1.45
javascript 1.js 526ms 3.4ms 134.5MB 583ms 83ms node 23.6.0
kotlin 1-m.kt 1514ms 66ms 136.5MB 2323ms 343ms kotlin/native 1.8.21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 119ms 1.0ms 87.0MB 107ms 27ms bun 1.1.45
kotlin 1.kt 127ms 2.3ms 208.6MB 157ms 30ms kotlin/jvm 21
javascript 1.js 157ms 2.1ms 102.3MB 137ms 47ms node 23.6.0
kotlin 1-m.kt 302ms 3.5ms 40.6MB 430ms 70ms kotlin/native 1.8.21

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 405ms 5.4ms 4.7MB 393ms 0ms kotlin/native 1.8.21
kotlin 1.kt 443ms 4.4ms 49.6MB 483ms 17ms kotlin/jvm 21
javascript 6.js 459ms 2.4ms 59.7MB 447ms 7ms node 23.6.0
javascript 6.js 658ms 0.3ms 45.6MB 653ms 7ms bun 1.1.45

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 46ms 1.6ms 4.6MB 33ms 0ms kotlin/native 1.8.21
javascript 6.js 77ms 1.0ms 59.8MB 60ms 10ms node 23.6.0
javascript 6.js 85ms 2.1ms 45.4MB 83ms 3ms bun 1.1.45
kotlin 1.kt 120ms 1.7ms 49.7MB 160ms 20ms kotlin/jvm 21

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 3713ms 77ms 353.7MB 4497ms 83ms kotlin/jvm 21
javascript 3.js 4723ms 215ms 92.1MB 4707ms 20ms node 23.6.0
kotlin 1n.kt timeout 0.0ms 7.4MB 6367ms 257ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 8.3MB 4983ms 173ms kotlin/native 1.8.21

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 1005ms 20ms 353.8MB 1740ms 70ms kotlin/jvm 21
javascript 3.js 1013ms 23ms 74.3MB 990ms 17ms node 23.6.0
kotlin 1n.kt timeout 0.0ms 7.3MB 6397ms 293ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 10.3MB 5003ms 153ms 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 171.6MB 5427ms 37ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 279.1MB 5003ms 860ms 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 836ms 29ms 134.6MB 1223ms 50ms kotlin/jvm 21
kotlin 1n.kt 3337ms 226ms 65.0MB 4233ms 10ms kotlin/native 1.8.21

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2555ms 27ms 63.2MB 2557ms 17ms node 23.6.0
javascript 1.js 2692ms 12ms 84.3MB 2700ms 53ms bun 1.1.45
kotlin 1.kt 3090ms 36ms 231.3MB 3953ms 63ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 675ms 1.8ms 61.9MB 673ms 20ms node 23.6.0
javascript 1.js 710ms 3.9ms 83.8MB 703ms 33ms bun 1.1.45
kotlin 1-m.kt 950ms 29ms 231.2MB 1920ms 57ms kotlin/jvm 21