Programming Language and compiler
Benchmarks

Wasm VS Javascript benchmarks

Current benchmark data was generated on Thu May 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 961ms 19ms 189.3MB 1440ms 253ms bun 1.2.11
javascript 1-m.js 1237ms 36ms 250.6MB 2120ms 157ms node 23.11.0
wasm 5.rs 1774ms 4.7ms 33.7MB 1757ms 7ms wasmtime 32.0.0
wasm 3.rs 1818ms 20ms 49.7MB 1790ms 13ms wasmtime 32.0.0
wasm 4.rs 1821ms 4.3ms 33.8MB 1803ms 7ms wasmtime 32.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 101ms 3.1ms 79.5MB 77ms 30ms bun 1.2.11
javascript 1.js 125ms 2.3ms 78.7MB 127ms 27ms node 23.11.0
wasm 5.rs 170ms 2.0ms 19.7MB 160ms 0ms wasmtime 32.0.0
wasm 4.rs 177ms 2.1ms 19.7MB 163ms 0ms wasmtime 32.0.0
wasm 3.rs 180ms 5.3ms 21.7MB 163ms 0ms wasmtime 32.0.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 1138ms 15ms 20.2MB 1123ms 0ms wasmtime 32.0.0
javascript 1.js 1592ms 8.1ms 90.4MB 1680ms 50ms node 23.11.0
javascript 1.js 2477ms 15ms 101.1MB 2510ms 60ms bun 1.2.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 82ms 1.1ms 20.2MB 70ms 0ms wasmtime 32.0.0
javascript 1.js 157ms 3.2ms 71.9MB 143ms 20ms node 23.11.0
javascript 1.js 198ms 3.1ms 86.6MB 223ms 30ms bun 1.2.11

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 271ms 3.9ms 63.7MB 287ms 23ms node 23.11.0
wasm 1.rs 421ms 3.5ms 19.4MB 407ms 0ms wasmtime 32.0.0
javascript 1.js 522ms 4.8ms 77.6MB 497ms 20ms bun 1.2.11

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 115ms 2.5ms 18.8MB 100ms 0ms wasmtime 32.0.0
javascript 1.js 124ms 0.7ms 61.4MB 143ms 17ms node 23.11.0
javascript 1.js 500ms 3.0ms 67.6MB 477ms 20ms bun 1.2.11

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 4121ms 1.0ms 17.3MB 4110ms 0ms wasmtime 32.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 345ms 2.7ms 17.3MB 333ms 0ms wasmtime 32.0.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 236ms 2.0ms 17.9MB 223ms 0ms wasmtime 32.0.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 31ms 1.2ms 17.8MB 20ms 0ms wasmtime 32.0.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 6.4ms 0.3ms 16.1MB 0ms 0ms wasmtime 32.0.0
javascript 1.js 13ms 0.3ms 33.4MB 0ms 10ms bun 1.2.11
javascript 1.js 30ms 0.8ms 47.7MB 18ms 2ms node 23.11.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 87ms 2.0ms 17.8MB 77ms 0ms wasmtime 32.0.0
javascript 2.js 307ms 2.3ms 62.8MB 297ms 13ms node 23.11.0
javascript 1.js 555ms 1.1ms 60.6MB 540ms 10ms node 23.11.0
javascript 2.js 654ms 7.6ms 121.9MB 707ms 60ms bun 1.2.11
javascript 1.js 824ms 5.1ms 111.6MB 920ms 73ms bun 1.2.11

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 246ms 2.8ms 17.5MB 233ms 0ms wasmtime 32.0.0
javascript 2.js 840ms 2.4ms 68.5MB 830ms 17ms node 23.11.0
javascript 1.js 1579ms 1.6ms 68.0MB 1563ms 13ms node 23.11.0
javascript 2.js 1820ms 2.5ms 122.2MB 1987ms 77ms bun 1.2.11
javascript 1.js 2446ms 103ms 112.9MB 2770ms 150ms bun 1.2.11

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 46ms 0.8ms 17.7MB 33ms 0ms wasmtime 32.0.0
javascript 1.js 161ms 1.1ms 58.0MB 150ms 7ms node 23.11.0
javascript 2.js 163ms 0.7ms 56.5MB 160ms 7ms node 23.11.0
javascript 1.js 317ms 2.2ms 115.6MB 353ms 77ms bun 1.2.11
javascript 2.js 354ms 4.5ms 125.5MB 377ms 50ms bun 1.2.11

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 822ms 2.9ms 20.8MB 807ms 0ms wasmtime 32.0.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 42ms 0.8ms 17.9MB 30ms 0ms wasmtime 32.0.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 487ms 5.6ms 135.7MB 657ms 133ms bun 1.2.11
javascript 1.js 533ms 5.3ms 130.5MB 620ms 57ms node 23.11.0
wasm 1.rs 885ms 0.7ms 43.7MB 860ms 10ms wasmtime 32.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 115ms 2.7ms 87.3MB 100ms 30ms bun 1.2.11
javascript 1.js 158ms 1.6ms 98.3MB 160ms 33ms node 23.11.0
wasm 1.rs 197ms 2.7ms 23.7MB 183ms 0ms wasmtime 32.0.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 404ms 2.4ms 17.8MB 393ms 0ms wasmtime 32.0.0
javascript 6.js 457ms 5.8ms 56.0MB 443ms 10ms node 23.11.0
wasm 2.rs 563ms 3.0ms 17.9MB 550ms 0ms wasmtime 32.0.0
javascript 6.js 609ms 19ms 45.5MB 600ms 3ms bun 1.2.11

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 48ms 1.3ms 19.8MB 40ms 0ms wasmtime 32.0.0
wasm 2.rs 63ms 0.2ms 17.9MB 50ms 0ms wasmtime 32.0.0
javascript 6.js 76ms 0.8ms 55.8MB 67ms 3ms node 23.11.0
javascript 6.js 80ms 2.5ms 45.6MB 73ms 3ms bun 1.2.11

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 367ms 10ms 22.7MB 353ms 0ms wasmtime 32.0.0
wasm 1.rs 458ms 4.0ms 56.9MB 443ms 0ms wasmtime 32.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 90ms 0.5ms 27.6MB 80ms 0ms wasmtime 32.0.0
wasm 2.rs 95ms 0.6ms 18.9MB 83ms 0ms wasmtime 32.0.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 2190ms 4.4ms 19.1MB 2173ms 0ms wasmtime 32.0.0
javascript 3.js 4795ms 24ms 88.0MB 4770ms 27ms node 23.11.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 519ms 3.4ms 18.1MB 507ms 0ms wasmtime 32.0.0
javascript 3.js 1040ms 4.3ms 70.7MB 1020ms 13ms node 23.11.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2491ms 5.7ms 59.8MB 2493ms 23ms node 23.11.0
javascript 1.js 2807ms 14ms 84.1MB 2820ms 53ms bun 1.2.11
wasm 1.rs 3581ms 22ms 17.6MB 3567ms 0ms wasmtime 32.0.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 663ms 0.8ms 57.9MB 673ms 7ms node 23.11.0
javascript 1.js 731ms 8.9ms 84.0MB 730ms 30ms bun 1.2.11
wasm 1.rs 907ms 5.9ms 17.6MB 897ms 0ms wasmtime 32.0.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2187ms 17ms 115.2MB 8297ms 57ms node 23.11.0
wasm 2.rs 3694ms 3.7ms 17.6MB 3683ms 0ms wasmtime 32.0.0
wasm 7.rs 4898ms 2.5ms 18.1MB 4883ms 0ms wasmtime 32.0.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 649ms 2.4ms 112.8MB 2323ms 50ms node 23.11.0
wasm 2.rs 934ms 2.7ms 17.7MB 920ms 0ms wasmtime 32.0.0
wasm 7.rs 1229ms 0.8ms 19.5MB 1217ms 0ms wasmtime 32.0.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 239ms 1.7ms 17.4MB 223ms 0ms wasmtime 32.0.0
javascript 6-m.js 270ms 4.4ms 109.9MB 840ms 50ms node 23.11.0
wasm 7.rs 315ms 1.9ms 18.2MB 300ms 0ms wasmtime 32.0.0