Programming Language and compiler
Benchmarks

Nim VS Kotlin 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
nim 2.nim 741ms 8.3ms 34.9MB 727ms 0ms nim 2.2.0
nim 2.nim 919ms 4.1ms 34.7MB 900ms 7ms nim/clang 2.2.0
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
nim 2.nim 67ms 0.5ms 5.5MB 57ms 0ms nim 2.2.0
nim 2.nim 85ms 2.2ms 5.8MB 77ms 0ms nim/clang 2.2.0
kotlin 1.kt 95ms 2.4ms 158.2MB 103ms 23ms kotlin/jvm 21
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
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
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
nim 1.nim timeout 0.0ms 561.4MB 2450ms 2080ms nim 2.2.0
nim 1.nim timeout 0.0ms 570.6MB 2543ms 1987ms nim/clang 2.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
nim 1.nim 4127ms 12ms 519.8MB 2037ms 1663ms nim/clang 2.2.0
nim 1.nim 4262ms 22ms 519.3MB 2010ms 1827ms nim 2.2.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 174ms 1.9ms 1.5MB 160ms 0ms nim 2.2.0
nim 2.nim 226ms 6.1ms 1.8MB 213ms 0ms nim/clang 2.2.0
nim 1.nim 542ms 6.4ms 1.8MB 420ms 110ms nim/clang 2.2.0
nim 1.nim 569ms 4.4ms 1.5MB 470ms 87ms nim 2.2.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 20ms 0.4ms 1.5MB 10ms 0ms nim 2.2.0
nim 2.nim 25ms 1.4ms 1.8MB 17ms 0ms nim/clang 2.2.0
nim 1.nim 58ms 0.7ms 1.8MB 30ms 17ms nim/clang 2.2.0
nim 1.nim 60ms 2.1ms 1.5MB 37ms 10ms nim 2.2.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.0ms 0.0ms 1.6MB 0ms 0ms nim 2.2.0
nim 1.nim 1.1ms 0.1ms 1.8MB 0ms 0ms nim/clang 2.2.0
kotlin 1.kt 2.3ms 0.2ms 4.7MB 0ms 0ms kotlin/native 1.8.21
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
nim 1.nim 930ms 5.9ms 99.3MB 260ms 647ms nim 2.2.0
nim 1.nim 934ms 16ms 99.4MB 237ms 673ms nim/clang 2.2.0
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
nim 1.nim 152ms 5.5ms 18.1MB 30ms 107ms nim/clang 2.2.0
nim 1.nim 155ms 3.4ms 18.2MB 37ms 100ms nim 2.2.0
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

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 105ms 4.1ms 1.6MB 97ms 0ms nim/clang 2.2.0
nim 2.nim 108ms 2.2ms 1.8MB 100ms 0ms nim 2.2.0
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
kotlin 1.kt 501ms 15ms 7.8MB 600ms 7ms kotlin/native 1.8.21
nim 1.nim timeout 0.0ms 1.3MB 4987ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.0

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
nim 2.nim 307ms 6.6ms 1.6MB 297ms 0ms nim/clang 2.2.0
kotlin 1.kt 308ms 0.6ms 204.7MB 413ms 40ms kotlin/jvm 21
nim 2.nim 319ms 3.0ms 1.4MB 310ms 0ms nim 2.2.0
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
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.0
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 46ms 1.6ms 1.8MB 40ms 0ms nim/clang 2.2.0
nim 2.nim 49ms 1.9ms 1.5MB 40ms 0ms nim 2.2.0
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
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
nim 1.nim 463ms 5.7ms 1.5MB 450ms 0ms nim/clang 2.2.0
nim 1.nim 467ms 5.4ms 1.3MB 453ms 0ms nim 2.2.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 366ms 3.5ms 4.8MB 353ms 0ms nim/clang 2.2.0
nim 1.nim 542ms 1.7ms 4.5MB 533ms 0ms nim 2.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 18ms 0.5ms 1.9MB 10ms 0ms nim/clang 2.2.0
nim 1.nim 25ms 0.8ms 1.8MB 20ms 0ms nim 2.2.0

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
nim 1.nim 520ms 10ms 34.9MB 497ms 7ms nim 2.2.0
nim 1.nim 578ms 6.2ms 34.7MB 553ms 10ms nim/clang 2.2.0
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
nim 1.nim 112ms 2.9ms 9.6MB 100ms 0ms nim 2.2.0
kotlin 1.kt 122ms 2.0ms 206.5MB 157ms 23ms kotlin/jvm 21
nim 1.nim 124ms 3.0ms 9.9MB 110ms 0ms nim/clang 2.2.0
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
nim 2.nim 302ms 2.8ms 1.8MB 290ms 0ms nim 2.2.0
nim 2.nim 330ms 8.5ms 2.0MB 320ms 0ms nim/clang 2.2.0
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

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 32ms 0.5ms 1.8MB 20ms 0ms nim 2.2.0
nim 2.nim 35ms 0.9ms 2.0MB 23ms 0ms nim/clang 2.2.0
kotlin 1n.kt 43ms 0.8ms 4.6MB 30ms 0ms kotlin/native 1.8.21
kotlin 1.kt 112ms 0.7ms 49.4MB 150ms 17ms kotlin/jvm 21

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 252ms 0.5ms 41.5MB 240ms 0ms nim 2.2.0
nim 1.nim 293ms 2.6ms 41.8MB 280ms 0ms nim/clang 2.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 53ms 2.2ms 11.5MB 40ms 0ms nim 2.2.0
nim 1.nim 60ms 3.6ms 11.8MB 50ms 0ms nim/clang 2.2.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1541ms 6.9ms 152.3MB 1513ms 13ms nim/clang 2.2.0
nim 1.nim 1567ms 8.6ms 151.5MB 1530ms 23ms nim 2.2.0
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
nim 1.nim 162ms 0.2ms 17.6MB 143ms 3ms nim/clang 2.2.0
nim 1.nim 163ms 1.8ms 17.4MB 153ms 0ms nim 2.2.0
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

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 3383ms 20ms 1.6MB 3370ms 0ms nim/clang 2.2.0
nim 1.nim 3439ms 35ms 1.4MB 3430ms 0ms nim 2.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 848ms 4.3ms 1.5MB 837ms 0ms nim/clang 2.2.0
nim 1.nim 860ms 8.6ms 1.3MB 853ms 0ms nim 2.2.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 214ms 1.3ms 1.3MB 203ms 0ms nim 2.2.0
nim 1.nim 217ms 5.1ms 1.5MB 207ms 0ms nim/clang 2.2.0