Programming Language and compiler
Benchmarks

Wasm VS V benchmarks

Current benchmark data was generated on Tue Jul 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
v 1.v 846ms 4.8ms 22.1MB 833ms 0ms v/clang+gc 0.4.11
wasm 5.rs 1766ms 30ms 36.0MB 1747ms 7ms wasmtime 34.0.1
wasm 4.rs 1838ms 15ms 34.0MB 1817ms 10ms wasmtime 34.0.1
wasm 3.rs 1880ms 33ms 50.0MB 1850ms 13ms wasmtime 34.0.1
v 1.v 2181ms 5.3ms 2086.6MB 1273ms 893ms v/clang 0.4.11

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 74ms 0.6ms 4.6MB 67ms 0ms v/clang+gc 0.4.11
wasm 5.rs 167ms 1.1ms 20.1MB 150ms 0ms wasmtime 34.0.1
wasm 4.rs 174ms 1.7ms 20.0MB 160ms 3ms wasmtime 34.0.1
wasm 3.rs 179ms 2.1ms 22.1MB 163ms 0ms wasmtime 34.0.1
v 1.v 208ms 1.1ms 196.4MB 117ms 77ms v/clang 0.4.11

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 1111ms 16ms 20.4MB 1100ms 0ms wasmtime 34.0.1
v 1.v timeout 0.0ms 18.4MB 8453ms 10927ms v/clang 0.4.11
v 1.v timeout 0.0ms 18.4MB 8530ms 10693ms v/clang+gc 0.4.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 77ms 0.4ms 19.1MB 67ms 0ms wasmtime 34.0.1
v 1-m.v 1397ms 36ms 9.9MB 2337ms 2943ms v/clang 0.4.11
v 1-m.v 1443ms 71ms 10.5MB 2503ms 2947ms v/clang+gc 0.4.11

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 419ms 6.5ms 19.5MB 403ms 0ms wasmtime 34.0.1
v 1.v timeout 0.0ms 7.8MB 4990ms 0ms v/clang+gc 0.4.11

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 113ms 0.1ms 19.0MB 100ms 0ms wasmtime 34.0.1
v 1.v timeout 0.0ms 4.5MB 4987ms 0ms v/clang+gc 0.4.11

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2199ms 9.7ms 1.9MB 2190ms 0ms v/clang+gc 0.4.11
v 1.v 2257ms 2.8ms 1.1MB 2250ms 0ms v/clang 0.4.11
wasm 1.rs 4201ms 47ms 18.3MB 4190ms 0ms wasmtime 34.0.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 185ms 0.4ms 1.9MB 180ms 0ms v/clang+gc 0.4.11
v 1.v 193ms 1.7ms 1.1MB 187ms 0ms v/clang 0.4.11
wasm 1.rs 349ms 0.3ms 18.3MB 337ms 0ms wasmtime 34.0.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 235ms 3.7ms 18.2MB 220ms 0ms wasmtime 34.0.1
v 1.v 508ms 2.5ms 1.3MB 497ms 0ms v/clang 0.4.11
v 1.v 523ms 1.6ms 2.1MB 510ms 0ms v/clang+gc 0.4.11

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 32ms 1.2ms 18.2MB 20ms 0ms wasmtime 34.0.1
v 1.v 53ms 0.0ms 1.3MB 47ms 0ms v/clang 0.4.11
v 1.v 55ms 0.6ms 2.1MB 50ms 0ms 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 1.1ms 0.3ms 1.4MB 0ms 0ms v/clang 0.4.11
v 1.v 1.2ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.11
wasm 1.rs 6.7ms 0.5ms 18.3MB 0ms 0ms wasmtime 34.0.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 90ms 1.3ms 18.5MB 80ms 0ms wasmtime 34.0.1
v 1.v 264ms 2.4ms 2.1MB 253ms 0ms v/clang+gc 0.4.11
v 1.v 265ms 4.9ms 1.3MB 257ms 0ms v/clang 0.4.11

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 253ms 2.7ms 17.9MB 240ms 0ms wasmtime 34.0.1
v 1.v 775ms 3.4ms 2.1MB 763ms 0ms v/clang+gc 0.4.11
v 1.v 782ms 14ms 1.3MB 773ms 0ms v/clang 0.4.11

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 47ms 1.0ms 17.7MB 33ms 0ms wasmtime 34.0.1
v 1.v 91ms 2.2ms 1.3MB 83ms 0ms v/clang 0.4.11
v 1.v 103ms 0.5ms 2.1MB 90ms 0ms v/clang+gc 0.4.11

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 828ms 2.0ms 21.5MB 817ms 0ms wasmtime 34.0.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 43ms 0.2ms 18.4MB 30ms 0ms wasmtime 34.0.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 886ms 12ms 44.1MB 863ms 10ms wasmtime 34.0.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 193ms 1.1ms 24.1MB 177ms 3ms wasmtime 34.0.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.5ms 1.6MB 300ms 0ms v/clang 0.4.11
v 1.v 312ms 1.3ms 2.3MB 300ms 0ms v/clang+gc 0.4.11
wasm 1.rs 404ms 3.4ms 18.0MB 390ms 0ms wasmtime 34.0.1
wasm 2.rs 562ms 0.4ms 18.3MB 550ms 0ms wasmtime 34.0.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 33ms 0.2ms 1.6MB 27ms 0ms v/clang 0.4.11
v 1.v 34ms 0.2ms 2.3MB 23ms 0ms v/clang+gc 0.4.11
wasm 1.rs 49ms 1.1ms 18.1MB 37ms 0ms wasmtime 34.0.1
wasm 2.rs 65ms 1.1ms 18.1MB 50ms 0ms wasmtime 34.0.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 330ms 4.8ms 6.9MB 323ms 0ms v/clang+gc 0.4.11
v 2.v 332ms 2.9ms 6.1MB 323ms 0ms v/clang 0.4.11
v 1.v 341ms 4.3ms 40.3MB 323ms 0ms v/clang 0.4.11
v 1.v 346ms 3.1ms 41.2MB 337ms 0ms v/clang+gc 0.4.11
wasm 2.rs 391ms 3.6ms 23.0MB 377ms 0ms wasmtime 34.0.1
wasm 1.rs 526ms 14ms 57.2MB 510ms 0ms wasmtime 34.0.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 61ms 0.8ms 11.1MB 50ms 0ms v/clang 0.4.11
v 1.v 63ms 1.7ms 19.0MB 50ms 0ms v/clang+gc 0.4.11
v 2.v 80ms 0.4ms 3.1MB 70ms 0ms v/clang+gc 0.4.11
v 2.v 83ms 2.0ms 2.4MB 70ms 0ms v/clang 0.4.11
wasm 1.rs 94ms 2.6ms 27.8MB 80ms 0ms wasmtime 34.0.1
wasm 2.rs 100ms 2.9ms 19.5MB 90ms 0ms wasmtime 34.0.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 2137ms 4.5ms 19.2MB 2123ms 0ms wasmtime 34.0.1
v 2.v 3283ms 37ms 4.0MB 3263ms 3ms v/clang+gc 0.4.11

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 509ms 3.9ms 18.3MB 493ms 0ms wasmtime 34.0.1
v 2.v 787ms 1.6ms 3.3MB 777ms 0ms v/clang+gc 0.4.11

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 3428ms 13ms 17.9MB 3413ms 0ms wasmtime 34.0.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 880ms 8.0ms 18.5MB 867ms 0ms wasmtime 34.0.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 3600ms 5.7ms 18.3MB 3587ms 0ms wasmtime 34.0.1
wasm 7.rs 4895ms 4.2ms 18.3MB 4883ms 0ms wasmtime 34.0.1
v 1.v timeout 0.0ms 1.6MB 4990ms 0ms v/clang 0.4.11
v 1.v timeout 0.0ms 2.8MB 4990ms 0ms v/clang+gc 0.4.11

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 907ms 0.5ms 17.7MB 893ms 0ms wasmtime 34.0.1
wasm 7.rs 1230ms 1.2ms 17.7MB 1220ms 0ms wasmtime 34.0.1
v 1.v 1290ms 4.5ms 1.5MB 1283ms 0ms v/clang 0.4.11
v 1.v 1320ms 1.5ms 2.5MB 1310ms 0ms v/clang+gc 0.4.11

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 234ms 1.4ms 17.6MB 220ms 0ms wasmtime 34.0.1
wasm 7.rs 316ms 0.4ms 18.1MB 303ms 0ms wasmtime 34.0.1
v 1.v 327ms 5.0ms 1.5MB 320ms 0ms v/clang 0.4.11
v 1.v 331ms 1.7ms 2.4MB 320ms 0ms v/clang+gc 0.4.11