Programming Language and compiler
Benchmarks

Wasm 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
javascript 1-m.js 1004ms 24ms 188.7MB 1530ms 233ms bun 1.2.8
javascript 1-m.js 1411ms 78ms 271.7MB 2213ms 160ms node 23.10.0
wasm 5.rs 1809ms 60ms 33.1MB 1790ms 7ms wasmtime 31.0.0
wasm 3.rs 1854ms 16ms 49.2MB 1827ms 17ms wasmtime 31.0.0
wasm 4.rs 1863ms 11ms 33.2MB 1840ms 10ms wasmtime 31.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
wasm 5.rs 174ms 4.1ms 19.3MB 157ms 0ms wasmtime 31.0.0
wasm 3.rs 180ms 2.4ms 21.1MB 163ms 0ms wasmtime 31.0.0
wasm 4.rs 181ms 4.0ms 19.2MB 163ms 0ms wasmtime 31.0.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 1133ms 6.8ms 19.4MB 1117ms 0ms wasmtime 31.0.0
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

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 82ms 1.6ms 17.7MB 70ms 0ms wasmtime 31.0.0
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

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 273ms 5.6ms 62.9MB 283ms 20ms node 23.10.0
wasm 1.rs 421ms 7.8ms 18.6MB 403ms 3ms wasmtime 31.0.0
javascript 1.js 530ms 3.1ms 77.9MB 500ms 30ms bun 1.2.8

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 115ms 2.6ms 18.0MB 103ms 0ms wasmtime 31.0.0
javascript 1.js 128ms 0.4ms 61.7MB 150ms 20ms node 23.10.0
javascript 1.js 500ms 2.9ms 67.9MB 473ms 17ms bun 1.2.8

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 4154ms 12ms 16.7MB 4137ms 0ms wasmtime 31.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 353ms 4.0ms 17.2MB 340ms 0ms wasmtime 31.0.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 237ms 2.6ms 17.5MB 223ms 3ms wasmtime 31.0.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 32ms 0.9ms 17.3MB 20ms 0ms wasmtime 31.0.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 7.3ms 1.3ms 17.4MB 0ms 0ms wasmtime 31.0.0
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
wasm 1.rs 90ms 0.5ms 17.4MB 80ms 0ms wasmtime 31.0.0
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

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 255ms 5.4ms 16.9MB 240ms 0ms wasmtime 31.0.0
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

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 48ms 1.5ms 17.4MB 37ms 0ms wasmtime 31.0.0
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

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 832ms 8.8ms 20.3MB 817ms 0ms wasmtime 31.0.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 43ms 1.1ms 17.4MB 30ms 0ms wasmtime 31.0.0

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
javascript 1.js 531ms 2.6ms 130.3MB 617ms 60ms node 23.10.0
wasm 1.rs 939ms 69ms 41.1MB 913ms 13ms wasmtime 31.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 117ms 0.3ms 86.8MB 100ms 33ms bun 1.2.8
javascript 1.js 163ms 6.2ms 98.5MB 160ms 37ms node 23.10.0
wasm 1.rs 201ms 2.9ms 23.2MB 183ms 0ms wasmtime 31.0.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 413ms 2.3ms 17.1MB 400ms 0ms wasmtime 31.0.0
javascript 6.js 460ms 4.6ms 55.8MB 447ms 7ms node 23.10.0
wasm 2.rs 587ms 3.1ms 17.0MB 573ms 0ms wasmtime 31.0.0
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
wasm 1.rs 50ms 1.6ms 17.1MB 37ms 0ms wasmtime 31.0.0
wasm 2.rs 67ms 0.7ms 17.4MB 53ms 0ms wasmtime 31.0.0
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
wasm 2.rs 376ms 5.1ms 22.0MB 360ms 0ms wasmtime 31.0.0
wasm 1.rs 510ms 12ms 56.1MB 493ms 0ms wasmtime 31.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 99ms 4.3ms 27.0MB 83ms 0ms wasmtime 31.0.0
wasm 2.rs 100ms 2.4ms 18.4MB 83ms 7ms wasmtime 31.0.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 2211ms 7.5ms 18.2MB 2197ms 0ms wasmtime 31.0.0
javascript 3.js timeout 0.0ms 87.8MB 4987ms 23ms node 23.10.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 531ms 6.4ms 17.6MB 513ms 0ms wasmtime 31.0.0
javascript 3.js 1103ms 0.7ms 71.1MB 1080ms 20ms node 23.10.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2498ms 4.6ms 59.8MB 2507ms 17ms node 23.10.0
javascript 1.js 2886ms 0.3ms 85.0MB 2900ms 50ms bun 1.2.8
wasm 1.rs 3610ms 3.0ms 16.9MB 3597ms 0ms wasmtime 31.0.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 670ms 7.4ms 57.1MB 680ms 13ms node 23.10.0
javascript 1.js 764ms 19ms 84.4MB 763ms 27ms bun 1.2.8
wasm 1.rs 910ms 1.5ms 16.8MB 897ms 0ms wasmtime 31.0.0

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
wasm 2.rs 3602ms 4.5ms 16.9MB 3587ms 0ms wasmtime 31.0.0
wasm 7.rs 4912ms 16ms 16.9MB 4897ms 0ms wasmtime 31.0.0

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
wasm 2.rs 910ms 0.9ms 16.7MB 897ms 0ms wasmtime 31.0.0
wasm 7.rs 1240ms 9.5ms 16.9MB 1230ms 0ms wasmtime 31.0.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 235ms 1.1ms 17.2MB 220ms 0ms wasmtime 31.0.0
javascript 6-m.js 268ms 5.8ms 112.1MB 827ms 50ms node 23.10.0
wasm 7.rs 321ms 11ms 16.8MB 307ms 0ms wasmtime 31.0.0