Programming Language and compiler
Benchmarks

Javascript VS Kotlin 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
kotlin 1.kt 513ms 4.4ms 577.8MB 603ms 107ms kotlin/jvm 21
javascript 1-m.js 1036ms 29ms 187.6MB 1633ms 273ms bun 1.2.9
javascript 1-m.js 1296ms 2.8ms 272.7MB 2237ms 170ms node 23.11.0
kotlin 1.kt 4515ms 38ms 146.1MB 4703ms 67ms kotlin/native 2.1.20

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 102ms 0.7ms 79.0MB 77ms 30ms bun 1.2.9
kotlin 1.kt 126ms 1.8ms 161.2MB 150ms 37ms kotlin/jvm 21
javascript 1.js 130ms 3.3ms 78.4MB 137ms 23ms node 23.11.0
kotlin 1.kt 318ms 32ms 17.9MB 327ms 7ms kotlin/native 2.1.20

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 1638ms 3.3ms 89.9MB 1727ms 60ms node 23.11.0
kotlin 2-m.kt 2184ms 180ms 244.6MB 8133ms 130ms kotlin/jvm 21
kotlin 1.kt 2217ms 57ms 220.3MB 3067ms 70ms kotlin/jvm 21
javascript 1.js 2497ms 24ms 101.7MB 2517ms 73ms bun 1.2.9
kotlin 2-m.kt 4498ms 30ms 21.5MB 14707ms 610ms kotlin/native 2.1.20
kotlin 1.kt timeout 0.0ms 17.4MB 5523ms 30ms kotlin/native 2.1.20

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 160ms 0.1ms 72.0MB 147ms 23ms node 23.11.0
javascript 1.js 201ms 1.0ms 86.8MB 220ms 40ms bun 1.2.9
kotlin 2-m.kt 253ms 6.4ms 21.3MB 847ms 40ms kotlin/native 2.1.20
kotlin 1.kt 409ms 11ms 17.4MB 420ms 10ms kotlin/native 2.1.20
kotlin 1-m.kt 492ms 12ms 77.2MB 1140ms 43ms kotlin/jvm 21
kotlin 2-m.kt 969ms 186ms 109.2MB 3360ms 83ms kotlin/jvm 21

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 282ms 4.5ms 62.6MB 303ms 20ms node 23.11.0
javascript 1.js 537ms 11ms 77.3MB 513ms 23ms bun 1.2.9

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 130ms 1.2ms 61.4MB 150ms 20ms node 23.11.0
javascript 1.js 504ms 0.5ms 67.4MB 480ms 17ms bun 1.2.9

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.1ms 0.1ms 3.1MB 0ms 0ms kotlin/native 2.1.20
javascript 1.js 13ms 0.4ms 33.3MB 0ms 0ms bun 1.2.9
javascript 1.js 33ms 1.0ms 47.8MB 18ms 4ms node 23.11.0
kotlin 1.kt 67ms 2.3ms 47.7MB 82ms 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 354ms 14ms 77.7MB 163ms 447ms bun 1.2.9
javascript 1.js 3078ms 160ms 183.3MB 3010ms 1423ms node 23.11.0
kotlin 1.kt timeout 0.0ms 405.5MB 16143ms 2733ms kotlin/jvm 21
kotlin 2.kt timeout 0.0ms 458.9MB 15747ms 2687ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 106ms 6.8ms 55.5MB 40ms 100ms bun 1.2.9
javascript 1.js 376ms 5.1ms 79.2MB 353ms 140ms node 23.11.0
kotlin 1-m.kt 2223ms 205ms 254.3MB 6403ms 687ms kotlin/jvm 21
kotlin 2-m.kt 2233ms 250ms 249.5MB 6100ms 650ms 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 6.4ms 68.8MB 53ms 20ms bun 1.2.9
javascript 1.js 125ms 0.8ms 75.8MB 110ms 20ms node 23.11.0
kotlin 1-m.kt 773ms 88ms 172.2MB 2063ms 87ms kotlin/jvm 21

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 390ms 3.3ms 236.7MB 333ms 103ms bun 1.2.9
javascript 1.js 730ms 6.0ms 204.3MB 810ms 93ms node 23.11.0
kotlin 1-m.kt 1862ms 58ms 671.6MB 4417ms 173ms kotlin/jvm 21

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2.kt 171ms 2.7ms 12.4MB 173ms 0ms kotlin/native 2.1.20
kotlin 1-m.kt 200ms 3.0ms 96.7MB 333ms 27ms kotlin/jvm 21
kotlin 2-m.kt 212ms 8.2ms 105.3MB 453ms 40ms kotlin/jvm 21
javascript 2.js 312ms 0.7ms 62.9MB 300ms 13ms node 23.11.0
kotlin 1.kt 357ms 2.2ms 12.5MB 363ms 3ms kotlin/native 2.1.20
javascript 1.js 568ms 2.8ms 60.7MB 553ms 13ms node 23.11.0
javascript 2.js 664ms 4.0ms 122.4MB 723ms 50ms bun 1.2.9
javascript 1.js 830ms 3.2ms 111.2MB 930ms 70ms bun 1.2.9

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 325ms 2.7ms 215.9MB 557ms 50ms kotlin/jvm 21
kotlin 1.kt 344ms 2.7ms 204.8MB 463ms 40ms kotlin/jvm 21
kotlin 2.kt 476ms 6.0ms 12.6MB 507ms 3ms kotlin/native 2.1.20
javascript 2.js 860ms 1.2ms 68.7MB 850ms 10ms node 23.11.0
kotlin 1.kt 1043ms 15ms 12.6MB 1080ms 3ms kotlin/native 2.1.20
javascript 1.js 1604ms 4.1ms 67.8MB 1583ms 13ms node 23.11.0
javascript 2.js 1861ms 7.8ms 122.4MB 2037ms 77ms bun 1.2.9
javascript 1.js 2403ms 5.2ms 111.5MB 2730ms 157ms bun 1.2.9

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2.kt 94ms 0.7ms 12.8MB 87ms 3ms kotlin/native 2.1.20
kotlin 1.kt 122ms 2.7ms 12.9MB 117ms 0ms kotlin/native 2.1.20
kotlin 1-m.kt 159ms 1.4ms 92.7MB 320ms 20ms kotlin/jvm 21
javascript 1.js 165ms 2.5ms 58.0MB 157ms 10ms node 23.11.0
kotlin 2-m.kt 167ms 2.2ms 98.3MB 350ms 37ms kotlin/jvm 21
javascript 2.js 169ms 1.3ms 56.6MB 163ms 7ms node 23.11.0
javascript 1.js 325ms 3.1ms 115.1MB 367ms 77ms bun 1.2.9
javascript 2.js 364ms 2.6ms 126.0MB 383ms 57ms bun 1.2.9

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 391ms 4.1ms 682.5MB 453ms 93ms kotlin/jvm 21
javascript 1-m.js 519ms 4.4ms 144.8MB 687ms 143ms bun 1.2.9
javascript 1.js 576ms 13ms 130.3MB 670ms 63ms node 23.11.0
kotlin 1.kt 2170ms 19ms 88.8MB 2273ms 40ms kotlin/native 2.1.20

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 120ms 1.1ms 86.9MB 110ms 30ms bun 1.2.9
kotlin 1-m.kt 163ms 0.8ms 209.4MB 213ms 50ms kotlin/jvm 21
javascript 1.js 166ms 1.7ms 98.2MB 167ms 40ms node 23.11.0
kotlin 1.kt 426ms 7.1ms 25.7MB 437ms 10ms kotlin/native 2.1.20

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 352ms 1.7ms 3.5MB 340ms 0ms kotlin/native 2.1.20
kotlin 1.kt 448ms 1.3ms 49.3MB 493ms 17ms kotlin/jvm 21
javascript 6.js 462ms 6.7ms 56.1MB 447ms 10ms node 23.11.0
javascript 6.js 601ms 3.1ms 45.5MB 593ms 7ms bun 1.2.9

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1n.kt 39ms 0.9ms 3.5MB 30ms 0ms kotlin/native 2.1.20
javascript 6.js 81ms 0.6ms 45.6MB 73ms 10ms bun 1.2.9
javascript 6.js 81ms 0.3ms 56.1MB 70ms 10ms node 23.11.0
kotlin 1-m.kt 126ms 3.5ms 49.4MB 173ms 20ms kotlin/jvm 21

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2621ms 17ms 60.0MB 2633ms 23ms node 23.11.0
javascript 1.js 2878ms 9.0ms 84.4MB 2900ms 57ms bun 1.2.9
kotlin 1.kt 3093ms 47ms 230.3MB 3913ms 63ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 693ms 5.4ms 57.4MB 700ms 13ms node 23.11.0
javascript 1.js 757ms 15ms 83.9MB 757ms 30ms bun 1.2.9
kotlin 1-m.kt 1029ms 38ms 233.4MB 1937ms 63ms kotlin/jvm 21

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 3792ms 49ms 385.9MB 4713ms 107ms kotlin/jvm 21
javascript 3.js 4871ms 6.7ms 87.6MB 4850ms 30ms node 23.11.0
kotlin 1n.kt timeout 0.0ms 27.0MB 4077ms 1520ms kotlin/native 2.1.20
kotlin 2n.kt timeout 0.0ms 30.4MB 5163ms 130ms kotlin/native 2.1.20

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 992ms 27ms 355.5MB 1823ms 100ms kotlin/jvm 21
javascript 3.js 1057ms 2.7ms 70.6MB 1037ms 20ms node 23.11.0
kotlin 1n.kt timeout 0.0ms 26.6MB 4110ms 1483ms kotlin/native 2.1.20
kotlin 2n.kt timeout 0.0ms 30.9MB 5130ms 163ms kotlin/native 2.1.20

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2192ms 18ms 115.7MB 8290ms 60ms node 23.11.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 668ms 7.2ms 113.6MB 2350ms 57ms node 23.11.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 277ms 3.0ms 109.7MB 853ms 53ms node 23.11.0