Programming Language and compiler
Benchmarks

Kotlin VS V benchmarks

Current benchmark data was generated on Fri Aug 01 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 500ms 16ms 578.4MB 597ms 97ms kotlin/jvm 21
v 1.v 784ms 5.2ms 22.1MB 770ms 0ms v/clang+gc 0.4.11
v 1.v 2201ms 13ms 2086.6MB 1303ms 883ms v/clang 0.4.11
kotlin 1.kt 3911ms 6.4ms 143.8MB 4087ms 70ms kotlin/native 2.1.20

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 70ms 1.3ms 4.6MB 60ms 0ms v/clang+gc 0.4.11
kotlin 1.kt 122ms 1.1ms 159.5MB 143ms 37ms kotlin/jvm 21
kotlin 1.kt 203ms 6.2ms 17.3MB 210ms 3ms kotlin/native 2.1.20
v 1.v 210ms 1.6ms 196.5MB 113ms 83ms v/clang 0.4.11

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 1822ms 185ms 234.2MB 6767ms 103ms kotlin/jvm 21
kotlin 1.kt 2180ms 5.5ms 221.2MB 3010ms 73ms kotlin/jvm 21
kotlin 2-m.kt 4271ms 80ms 21.5MB 14227ms 520ms kotlin/native 2.1.20
kotlin 1.kt timeout 0.0ms 17.4MB 5510ms 27ms kotlin/native 2.1.20
v 1.v timeout 0.0ms 18.3MB 8357ms 10907ms v/clang 0.4.11
v 1.v timeout 0.0ms 18.8MB 9280ms 10013ms v/clang+gc 0.4.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 247ms 1.8ms 21.6MB 840ms 37ms kotlin/native 2.1.20
kotlin 1.kt 386ms 5.0ms 17.4MB 397ms 10ms kotlin/native 2.1.20
kotlin 1-m.kt 473ms 2.3ms 74.2MB 1100ms 40ms kotlin/jvm 21
kotlin 2-m.kt 861ms 25ms 96.7MB 3007ms 67ms kotlin/jvm 21
v 1-m.v 1379ms 60ms 10.0MB 2250ms 2973ms v/clang 0.4.11
v 1-m.v 1516ms 123ms 10.5MB 2680ms 3060ms v/clang+gc 0.4.11

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.0ms 0.0ms 1.4MB 0ms 0ms v/clang 0.4.11
v 1.v 1.3ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.11
kotlin 1.kt 2.2ms 0.2ms 3.0MB 0ms 0ms kotlin/native 2.1.20
kotlin 1.kt 61ms 0.9ms 47.6MB 74ms 18ms 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 2407ms 2407ms 418.1MB 10360ms 1773ms kotlin/jvm 21
kotlin 1.kt timeout 0.0ms 420.7MB 16243ms 2813ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 2079ms 169ms 257.4MB 6020ms 580ms kotlin/jvm 21
kotlin 2-m.kt 2107ms 35ms 231.9MB 5390ms 557ms kotlin/jvm 21

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 702ms 36ms 168.7MB 1873ms 77ms kotlin/jvm 21

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 1801ms 57ms 690.0MB 4283ms 153ms 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 9.2ms 12.4MB 170ms 0ms kotlin/native 2.1.20
kotlin 1-m.kt 194ms 4.6ms 95.0MB 323ms 27ms kotlin/jvm 21
kotlin 2-m.kt 206ms 5.2ms 102.2MB 433ms 37ms kotlin/jvm 21
v 1.v 240ms 1.6ms 1.3MB 230ms 0ms v/clang 0.4.11
v 1.v 258ms 2.6ms 2.1MB 250ms 0ms v/clang+gc 0.4.11
kotlin 1.kt 357ms 1.0ms 12.4MB 360ms 0ms kotlin/native 2.1.20

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 315ms 6.1ms 212.8MB 547ms 43ms kotlin/jvm 21
kotlin 1.kt 338ms 2.0ms 202.9MB 467ms 40ms kotlin/jvm 21
kotlin 2.kt 473ms 5.4ms 12.4MB 500ms 3ms kotlin/native 2.1.20
v 1.v 718ms 2.5ms 1.3MB 710ms 0ms v/clang 0.4.11
v 1.v 771ms 1.0ms 2.1MB 760ms 0ms v/clang+gc 0.4.11
kotlin 1.kt 1048ms 9.4ms 12.4MB 1077ms 3ms kotlin/native 2.1.20

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 91ms 1.5ms 1.3MB 80ms 0ms v/clang 0.4.11
kotlin 2.kt 94ms 0.9ms 12.8MB 90ms 0ms kotlin/native 2.1.20
v 1.v 102ms 5.3ms 2.1MB 93ms 0ms v/clang+gc 0.4.11
kotlin 1.kt 121ms 1.5ms 12.8MB 113ms 0ms kotlin/native 2.1.20
kotlin 1-m.kt 153ms 0.7ms 90.8MB 290ms 33ms kotlin/jvm 21
kotlin 2-m.kt 171ms 14ms 96.5MB 377ms 30ms kotlin/jvm 21

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 386ms 5.6ms 680.7MB 433ms 93ms kotlin/jvm 21
kotlin 1.kt 1880ms 15ms 89.9MB 1963ms 40ms kotlin/native 2.1.20

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 154ms 0.3ms 207.3MB 210ms 40ms kotlin/jvm 21
kotlin 1.kt 268ms 4.1ms 25.6MB 273ms 13ms kotlin/native 2.1.20

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.0ms 2.3MB 300ms 0ms v/clang+gc 0.4.11
v 1.v 314ms 1.2ms 1.6MB 307ms 0ms v/clang 0.4.11
kotlin 1n.kt 352ms 2.5ms 3.5MB 340ms 0ms kotlin/native 2.1.20
kotlin 1.kt 442ms 1.2ms 49.6MB 483ms 20ms kotlin/jvm 21

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 33ms 0.3ms 1.6MB 30ms 0ms v/clang 0.4.11
v 1.v 33ms 0.3ms 2.3MB 30ms 0ms v/clang+gc 0.4.11
kotlin 1n.kt 39ms 0.6ms 3.5MB 30ms 0ms kotlin/native 2.1.20
kotlin 1-m.kt 118ms 1.3ms 49.6MB 160ms 20ms kotlin/jvm 21

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 3247ms 51ms 3.5MB 3227ms 3ms v/clang+gc 0.4.11
kotlin 1.kt 3669ms 28ms 353.1MB 4487ms 113ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 26.6MB 3973ms 1500ms kotlin/native 2.1.20
kotlin 2n.kt timeout 0.0ms 30.9MB 5110ms 130ms kotlin/native 2.1.20

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 813ms 36ms 3.1MB 803ms 0ms v/clang+gc 0.4.11
kotlin 1-m.kt 957ms 5.5ms 357.3MB 1767ms 90ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 26.8MB 3970ms 1513ms kotlin/native 2.1.20
kotlin 2n.kt timeout 0.0ms 30.6MB 5120ms 117ms kotlin/native 2.1.20

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 173.5MB 5407ms 40ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 226.8MB 5063ms 130ms kotlin/native 2.1.20
v 1.v timeout 0.0ms 83.1MB 4980ms 3ms v/clang+gc 0.4.11

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 835ms 9.6ms 134.4MB 1263ms 43ms kotlin/jvm 21
kotlin 1n.kt 3210ms 31ms 51.1MB 3280ms 70ms kotlin/native 2.1.20
v 1.v 3509ms 13ms 26.0MB 3493ms 0ms v/clang+gc 0.4.11

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 3132ms 21ms 232.2MB 4037ms 77ms kotlin/jvm 21

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 981ms 52ms 231.2MB 1923ms 60ms kotlin/jvm 21