Programming Language and compiler
Benchmarks

Wasm VS V benchmarks

Current benchmark data was generated on Fri Aug 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 784ms 5.2ms 22.1MB 770ms 0ms v/clang+gc 0.4.11
wasm 5.rs 1754ms 5.6ms 33.8MB 1733ms 10ms wasmtime 35.0.0
wasm 3.rs 1818ms 28ms 49.8MB 1783ms 20ms wasmtime 35.0.0
wasm 4.rs 1833ms 6.3ms 33.7MB 1813ms 7ms wasmtime 35.0.0
v 1.v 2201ms 13ms 2086.6MB 1303ms 883ms v/clang 0.4.11

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 70ms 1.3ms 4.6MB 60ms 0ms v/clang+gc 0.4.11
wasm 5.rs 171ms 2.9ms 19.8MB 160ms 0ms wasmtime 35.0.0
wasm 4.rs 174ms 0.5ms 19.8MB 160ms 0ms wasmtime 35.0.0
wasm 3.rs 181ms 14ms 21.8MB 167ms 0ms wasmtime 35.0.0
v 1.v 210ms 1.6ms 196.5MB 113ms 83ms 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 1118ms 22ms 20.1MB 1100ms 0ms wasmtime 35.0.0
v 1.v timeout 0.0ms 18.3MB 8357ms 10907ms v/clang 0.4.11
v 1.v timeout 0.0ms 18.8MB 9280ms 10013ms 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 81ms 2.8ms 20.2MB 70ms 0ms wasmtime 35.0.0
v 1-m.v 1379ms 60ms 10.0MB 2250ms 2973ms v/clang 0.4.11
v 1-m.v 1516ms 123ms 10.5MB 2680ms 3060ms 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 416ms 5.6ms 19.5MB 403ms 0ms wasmtime 35.0.0
v 1.v timeout 0.0ms 8.3MB 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 112ms 2.4ms 18.7MB 100ms 0ms wasmtime 35.0.0
v 1.v timeout 0.0ms 5.0MB 4990ms 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 2224ms 12ms 1.9MB 2213ms 0ms v/clang+gc 0.4.11
v 1.v 2254ms 5.4ms 1.1MB 2247ms 0ms v/clang 0.4.11
wasm 1.rs 4146ms 2.1ms 17.3MB 4133ms 0ms wasmtime 35.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 189ms 1.9ms 1.9MB 180ms 0ms v/clang+gc 0.4.11
v 1.v 192ms 0.3ms 1.1MB 180ms 0ms v/clang 0.4.11
wasm 1.rs 348ms 0.1ms 17.4MB 340ms 0ms wasmtime 35.0.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 220ms 0.6ms 18.0MB 210ms 0ms wasmtime 35.0.0
v 1.v 502ms 4.4ms 1.3MB 493ms 0ms v/clang 0.4.11
v 1.v 517ms 6.9ms 2.1MB 503ms 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 30ms 0.9ms 18.1MB 20ms 0ms wasmtime 35.0.0
v 1.v 53ms 0.1ms 1.3MB 43ms 0ms v/clang 0.4.11
v 1.v 56ms 1.0ms 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 1.0ms 0.0ms 1.4MB 0ms 0ms v/clang 0.4.11
v 1.v 1.3ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.11
wasm 1.rs 6.4ms 0.3ms 18.0MB 0ms 0ms wasmtime 35.0.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 93ms 1.9ms 17.6MB 80ms 0ms wasmtime 35.0.0
v 1.v 240ms 1.6ms 1.3MB 230ms 0ms v/clang 0.4.11
v 1.v 258ms 2.6ms 2.1MB 250ms 0ms v/clang+gc 0.4.11

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 255ms 0.8ms 18.2MB 240ms 0ms wasmtime 35.0.0
v 1.v 718ms 2.5ms 1.3MB 710ms 0ms v/clang 0.4.11
v 1.v 771ms 1.0ms 2.1MB 760ms 0ms v/clang+gc 0.4.11

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 47ms 0.2ms 18.2MB 40ms 0ms wasmtime 35.0.0
v 1.v 91ms 1.5ms 1.3MB 80ms 0ms v/clang 0.4.11
v 1.v 102ms 5.3ms 2.1MB 93ms 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 817ms 1.4ms 21.1MB 803ms 0ms wasmtime 35.0.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 42ms 1.1ms 18.1MB 30ms 0ms wasmtime 35.0.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 880ms 4.4ms 41.7MB 857ms 10ms wasmtime 35.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 192ms 0.3ms 24.1MB 180ms 0ms wasmtime 35.0.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.0ms 2.3MB 300ms 0ms v/clang+gc 0.4.11
v 1.v 314ms 1.2ms 1.6MB 307ms 0ms v/clang 0.4.11
wasm 1.rs 410ms 1.4ms 17.8MB 400ms 0ms wasmtime 35.0.0
wasm 2.rs 565ms 5.2ms 17.9MB 553ms 0ms wasmtime 35.0.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 33ms 0.3ms 1.6MB 30ms 0ms v/clang 0.4.11
v 1.v 33ms 0.3ms 2.3MB 30ms 0ms v/clang+gc 0.4.11
wasm 1.rs 48ms 0.9ms 17.8MB 40ms 0ms wasmtime 35.0.0
wasm 2.rs 65ms 1.2ms 17.8MB 50ms 0ms wasmtime 35.0.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 299ms 7.9ms 41.2MB 287ms 0ms v/clang+gc 0.4.11
v 1.v 301ms 3.8ms 40.3MB 287ms 0ms v/clang 0.4.11
v 2.v 332ms 2.5ms 6.1MB 323ms 0ms v/clang 0.4.11
v 2.v 333ms 5.6ms 6.9MB 323ms 0ms v/clang+gc 0.4.11
wasm 2.rs 385ms 7.3ms 22.7MB 370ms 0ms wasmtime 35.0.0
wasm 1.rs 450ms 3.8ms 56.9MB 437ms 0ms wasmtime 35.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 61ms 2.3ms 19.0MB 50ms 0ms v/clang+gc 0.4.11
v 1.v 62ms 1.5ms 11.0MB 50ms 0ms v/clang 0.4.11
v 2.v 82ms 1.6ms 2.4MB 70ms 0ms v/clang 0.4.11
v 2.v 83ms 1.9ms 3.1MB 73ms 0ms v/clang+gc 0.4.11
wasm 1.rs 92ms 1.1ms 27.5MB 80ms 0ms wasmtime 35.0.0
wasm 2.rs 99ms 0.8ms 19.1MB 90ms 0ms wasmtime 35.0.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 2146ms 21ms 18.8MB 2133ms 0ms wasmtime 35.0.0
v 2.v 3247ms 51ms 3.5MB 3227ms 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 506ms 2.3ms 18.1MB 490ms 0ms wasmtime 35.0.0
v 2.v 813ms 36ms 3.1MB 803ms 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 3412ms 3.1ms 17.5MB 3400ms 0ms wasmtime 35.0.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 869ms 7.9ms 17.5MB 857ms 0ms wasmtime 35.0.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 7.rs 3602ms 3.8ms 18.1MB 3590ms 0ms wasmtime 35.0.0
wasm 2.rs 3607ms 9.5ms 17.8MB 3590ms 0ms wasmtime 35.0.0
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 905ms 0.6ms 17.4MB 890ms 0ms wasmtime 35.0.0
wasm 7.rs 909ms 1.9ms 17.6MB 897ms 0ms wasmtime 35.0.0
v 1.v 1287ms 3.1ms 1.5MB 1277ms 0ms v/clang 0.4.11
v 1.v 1300ms 2.7ms 2.5MB 1290ms 0ms v/clang+gc 0.4.11

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 7.rs 233ms 1.0ms 17.8MB 220ms 0ms wasmtime 35.0.0
wasm 2.rs 234ms 1.7ms 17.3MB 220ms 0ms wasmtime 35.0.0
v 1.v 325ms 2.3ms 1.5MB 317ms 0ms v/clang 0.4.11
v 1.v 327ms 0.9ms 2.5MB 320ms 0ms v/clang+gc 0.4.11