Programming Language and compiler
Benchmarks

Nim VS Javascript benchmarks

Current benchmark data was generated on Tue Apr 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
nim 2.nim 911ms 3.9ms 34.6MB 893ms 0ms nim 2.2.2
javascript 1-m.js 1004ms 24ms 188.7MB 1530ms 233ms bun 1.2.8
nim 2.nim 1032ms 45ms 34.9MB 1017ms 0ms nim/clang 2.2.2
javascript 1-m.js 1411ms 78ms 271.7MB 2213ms 160ms node 23.10.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 88ms 2.3ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 93ms 2.6ms 5.8MB 80ms 0ms nim/clang 2.2.2
javascript 1.js 101ms 1.5ms 79.0MB 77ms 27ms bun 1.2.8
javascript 1.js 124ms 0.7ms 78.6MB 127ms 23ms node 23.10.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 1611ms 17ms 90.1MB 1693ms 57ms node 23.10.0
javascript 1.js 2512ms 15ms 101.3MB 2547ms 53ms bun 1.2.8
nim 1.nim timeout 0.0ms 551.4MB 2497ms 2040ms nim 2.2.2
nim 1.nim timeout 0.0ms 559.8MB 2490ms 2047ms nim/clang 2.2.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 172ms 23ms 72.3MB 160ms 20ms node 23.10.0
javascript 1.js 201ms 1.8ms 87.0MB 223ms 30ms bun 1.2.8
nim 1.nim 4356ms 55ms 519.8MB 2120ms 1803ms nim/clang 2.2.2
nim 1.nim 4452ms 76ms 519.4MB 2183ms 1837ms nim 2.2.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 187ms 0.9ms 1.5MB 177ms 0ms nim 2.2.2
nim 2.nim 238ms 0.7ms 1.8MB 227ms 0ms nim/clang 2.2.2
nim 1.nim 556ms 1.1ms 1.8MB 447ms 93ms nim/clang 2.2.2
nim 1.nim 579ms 0.3ms 1.5MB 467ms 97ms nim 2.2.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 22ms 0.4ms 1.5MB 13ms 0ms nim 2.2.2
nim 2.nim 26ms 0.4ms 1.8MB 20ms 0ms nim/clang 2.2.2
nim 1.nim 58ms 0.2ms 1.8MB 40ms 7ms nim/clang 2.2.2
nim 1.nim 62ms 1.0ms 1.5MB 43ms 7ms nim 2.2.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.0ms 0.1ms 1.6MB 0ms 0ms nim 2.2.2
nim 1.nim 1.2ms 0.0ms 1.9MB 0ms 0ms nim/clang 2.2.2
javascript 1.js 13ms 0.5ms 32.8MB 0ms 0ms bun 1.2.8
javascript 1.js 31ms 0.9ms 48.1MB 18ms 4ms node 23.10.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 111ms 1.8ms 1.4MB 103ms 0ms nim 2.2.2
nim 2.nim 112ms 0.9ms 1.6MB 100ms 0ms nim/clang 2.2.2
javascript 2.js 310ms 2.7ms 62.8MB 303ms 13ms node 23.10.0
javascript 1.js 560ms 0.8ms 60.6MB 547ms 13ms node 23.10.0
javascript 2.js 659ms 5.8ms 122.6MB 727ms 53ms bun 1.2.8
javascript 1.js 833ms 1.1ms 107.4MB 923ms 70ms bun 1.2.8
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 328ms 2.7ms 1.6MB 317ms 0ms nim/clang 2.2.2
nim 2.nim 331ms 1.6ms 1.4MB 320ms 0ms nim 2.2.2
javascript 2.js 852ms 3.2ms 69.0MB 840ms 17ms node 23.10.0
javascript 1.js 1583ms 5.1ms 67.8MB 1567ms 13ms node 23.10.0
javascript 2.js 1842ms 2.5ms 123.1MB 2020ms 73ms bun 1.2.8
javascript 1.js 2420ms 5.6ms 126.7MB 2723ms 157ms bun 1.2.8
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 49ms 0.9ms 1.6MB 40ms 0ms nim/clang 2.2.2
nim 2.nim 50ms 0.3ms 1.3MB 40ms 0ms nim 2.2.2
javascript 1.js 163ms 1.2ms 58.1MB 150ms 10ms node 23.10.0
javascript 2.js 167ms 1.6ms 57.0MB 160ms 7ms node 23.10.0
javascript 1.js 319ms 1.4ms 114.8MB 360ms 70ms bun 1.2.8
javascript 2.js 355ms 2.5ms 126.4MB 377ms 50ms bun 1.2.8
nim 1.nim 442ms 4.2ms 1.8MB 433ms 0ms nim/clang 2.2.2
nim 1.nim 486ms 4.9ms 1.3MB 477ms 0ms nim 2.2.2

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 389ms 0.8ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 578ms 2.6ms 4.4MB 570ms 0ms nim 2.2.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 19ms 0.2ms 1.9MB 10ms 0ms nim/clang 2.2.2
nim 1.nim 29ms 2.3ms 1.6MB 20ms 0ms nim 2.2.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 474ms 4.8ms 137.9MB 620ms 120ms bun 1.2.8
nim 1.nim 526ms 2.3ms 34.6MB 510ms 3ms nim 2.2.2
javascript 1.js 531ms 2.6ms 130.3MB 617ms 60ms node 23.10.0
nim 1.nim 651ms 20ms 35.0MB 633ms 3ms nim/clang 2.2.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 115ms 1.7ms 9.6MB 103ms 0ms nim 2.2.2
javascript 1.js 117ms 0.3ms 86.8MB 100ms 33ms bun 1.2.8
nim 1.nim 135ms 1.5ms 9.9MB 120ms 0ms nim/clang 2.2.2
javascript 1.js 163ms 6.2ms 98.5MB 160ms 37ms node 23.10.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 321ms 1.3ms 1.8MB 310ms 0ms nim 2.2.2
nim 2.nim 342ms 1.8ms 2.0MB 333ms 0ms nim/clang 2.2.2
javascript 6.js 460ms 4.6ms 55.8MB 447ms 7ms node 23.10.0
javascript 6.js 791ms 19ms 45.8MB 783ms 10ms bun 1.2.8

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 34ms 0.6ms 1.8MB 30ms 0ms nim 2.2.2
nim 2.nim 38ms 0.7ms 2.0MB 30ms 0ms nim/clang 2.2.2
javascript 6.js 78ms 1.4ms 56.0MB 70ms 7ms node 23.10.0
javascript 6.js 99ms 1.1ms 45.8MB 97ms 3ms bun 1.2.8

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 290ms 15ms 41.5MB 277ms 0ms nim 2.2.2
nim 1.nim 349ms 1.9ms 41.8MB 333ms 0ms nim/clang 2.2.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 52ms 1.5ms 11.5MB 40ms 0ms nim 2.2.2
nim 1.nim 57ms 2.7ms 11.8MB 50ms 0ms nim/clang 2.2.2

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1632ms 7.3ms 164.3MB 1600ms 23ms nim/clang 2.2.2
nim 1.nim 1694ms 5.0ms 163.8MB 1663ms 20ms nim 2.2.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 173ms 1.4ms 20.9MB 157ms 3ms nim/clang 2.2.2
nim 1.nim 176ms 0.9ms 20.6MB 160ms 0ms nim 2.2.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2173ms 8.2ms 114.4MB 8300ms 53ms node 23.10.0
nim 1.nim 3591ms 2.6ms 1.6MB 3580ms 0ms nim/clang 2.2.2
nim 1.nim 3601ms 1.6ms 1.4MB 3590ms 0ms nim 2.2.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 650ms 1.3ms 113.4MB 2307ms 53ms node 23.10.0
nim 1.nim 901ms 1.4ms 1.8MB 890ms 0ms nim 2.2.2
nim 1.nim 905ms 9.6ms 1.5MB 897ms 0ms nim/clang 2.2.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 227ms 0.3ms 1.5MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 229ms 1.8ms 1.3MB 220ms 0ms nim 2.2.2
javascript 6-m.js 268ms 5.8ms 112.1MB 827ms 50ms node 23.10.0