Programming Language and compiler
Benchmarks

Kotlin VS Javascript 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
javascript 1-m.js 867ms 11ms 178.1MB 1290ms 257ms bun 1.1.42
javascript 1-m.js 1182ms 24ms 293.5MB 2050ms 133ms node 23.5.0
kotlin 1-m.kt 2928ms 6.8ms 248.5MB 4967ms 627ms kotlin/native 1.8.21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 91ms 0.7ms 78.5MB 70ms 23ms bun 1.1.42
kotlin 1.kt 95ms 2.4ms 158.2MB 103ms 23ms kotlin/jvm 21
javascript 1.js 117ms 2.5ms 82.6MB 117ms 23ms node 23.5.0
kotlin 1-m.kt 257ms 6.2ms 32.6MB 400ms 63ms 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 1518ms 12ms 94.5MB 1590ms 53ms node 23.5.0
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
javascript 1.js 2118ms 133ms 100.0MB 2147ms 50ms bun 1.1.42
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

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 147ms 3.0ms 76.6MB 137ms 17ms node 23.5.0
javascript 1.js 171ms 7.3ms 85.4MB 197ms 23ms bun 1.1.42
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

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
javascript 1.js 12ms 0.4ms 32.1MB 10ms 0ms bun 1.1.42
javascript 1.js 29ms 1.3ms 51.9MB 14ms 4ms node 23.5.0
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
javascript 1.bun.js 340ms 18ms 72.6MB 90ms 403ms bun 1.1.42
javascript 1.js 2928ms 179ms 188.7MB 2733ms 1360ms node 23.5.0
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
javascript 1.bun.js 148ms 13ms 53.6MB 40ms 93ms bun 1.1.42
javascript 1.js 357ms 7.6ms 84.6MB 350ms 80ms node 23.5.0
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
javascript 1.js 80ms 3.6ms 65.6MB 50ms 13ms bun 1.1.42
javascript 1.js 104ms 1.8ms 79.1MB 97ms 10ms node 23.5.0
kotlin 1-m.kt 863ms 53ms 202.0MB 2353ms 83ms kotlin/jvm 21

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 367ms 2.6ms 207.0MB 337ms 73ms bun 1.1.42
javascript 1.js 657ms 4.1ms 204.7MB 763ms 73ms node 23.5.0
kotlin 1-m.kt 2217ms 99ms 784.2MB 4773ms 140ms 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 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
javascript 2.js 293ms 0.8ms 66.6MB 287ms 7ms node 23.5.0
kotlin 1.kt 501ms 15ms 7.8MB 600ms 7ms kotlin/native 1.8.21
javascript 1.js 525ms 5.8ms 64.9MB 510ms 7ms node 23.5.0
javascript 2.js 601ms 2.1ms 122.1MB 653ms 43ms bun 1.1.42
javascript 1.js 777ms 12ms 106.0MB 837ms 80ms bun 1.1.42

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
javascript 2.js 794ms 4.4ms 72.4MB 787ms 10ms node 23.5.0
kotlin 2.kt 863ms 8.2ms 7.6MB 1240ms 50ms kotlin/native 1.8.21
kotlin 1.kt 1456ms 8.2ms 7.9MB 1763ms 17ms kotlin/native 1.8.21
javascript 1.js 1492ms 4.6ms 71.9MB 1477ms 10ms node 23.5.0
javascript 2.js 1695ms 15ms 122.4MB 1797ms 83ms bun 1.1.42
javascript 1.js 2217ms 20ms 109.6MB 2460ms 150ms bun 1.1.42

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
javascript 1.js 150ms 0.6ms 62.0MB 137ms 3ms node 23.5.0
javascript 2.js 156ms 3.5ms 60.9MB 150ms 7ms node 23.5.0
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
javascript 1.js 298ms 3.3ms 113.8MB 330ms 67ms bun 1.1.42
javascript 2.js 327ms 2.1ms 125.6MB 343ms 50ms bun 1.1.42

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
javascript 1-m.js 466ms 12ms 137.7MB 597ms 133ms bun 1.1.42
javascript 1.js 493ms 0.8ms 134.3MB 557ms 70ms node 23.5.0
kotlin 1-m.kt 1426ms 20ms 136.5MB 2193ms 330ms kotlin/native 1.8.21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 113ms 1.9ms 85.8MB 90ms 37ms bun 1.1.42
kotlin 1.kt 122ms 2.0ms 206.5MB 157ms 23ms kotlin/jvm 21
javascript 1.js 147ms 2.9ms 102.3MB 150ms 27ms node 23.5.0
kotlin 1-m.kt 283ms 1.7ms 40.4MB 410ms 57ms 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 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
javascript 6.js 442ms 11ms 59.8MB 427ms 7ms node 23.5.0
javascript 6.js 628ms 10ms 44.6MB 627ms 3ms bun 1.1.42

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
javascript 6.js 72ms 1.0ms 59.9MB 57ms 3ms node 23.5.0
javascript 6.js 82ms 1.6ms 44.8MB 83ms 3ms bun 1.1.42
kotlin 1.kt 112ms 0.7ms 49.4MB 150ms 17ms kotlin/jvm 21

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
javascript 3.js 4744ms 21ms 92.2MB 4720ms 30ms node 23.5.0
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

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
javascript 3.js 1030ms 4.0ms 74.8MB 1017ms 17ms node 23.5.0
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
javascript 1.js 2386ms 6.1ms 64.1MB 2393ms 10ms node 23.5.0
javascript 1.js 2609ms 9.9ms 82.9MB 2640ms 33ms bun 1.1.42
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
javascript 1.js 628ms 11ms 61.7MB 623ms 17ms node 23.5.0
javascript 1.js 681ms 5.8ms 82.5MB 680ms 27ms bun 1.1.42
kotlin 1-m.kt 926ms 27ms 209.8MB 1550ms 43ms kotlin/jvm 21