Programming Language and compiler
Benchmarks

Wasm VS C 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
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
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

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

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 421ms 3.5ms 19.4MB 407ms 0ms wasmtime 32.0.0

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

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
c 1.c 1.0ms 0.0ms 1.3MB 0ms 0ms zigcc 0.14.0
c 1.c 1.2ms 0.0ms 2.1MB 0ms 0ms gcc 15.1.0
c 1.c 1.3ms 0.1ms 2.1MB 0ms 0ms clang 14.0.0-1ubuntu1.1
wasm 1.rs 6.4ms 0.3ms 16.1MB 0ms 0ms wasmtime 32.0.0

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

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

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

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-mffi.c 223ms 8.7ms 7.6MB 827ms 10ms clang 14.0.0-1ubuntu1.1
c 1-mffi.c 264ms 0.7ms 6.6MB 813ms 0ms gcc 15.1.0
c 1-ffi.c 329ms 0.7ms 6.0MB 320ms 0ms zigcc 0.14.0
c 1-mffi.c 331ms 2.6ms 6.0MB 323ms 0ms zigcc 0.14.0
c 1-ffi.c 452ms 1.2ms 6.5MB 440ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 543ms 1.9ms 6.8MB 533ms 0ms gcc 15.1.0
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
c 1-mffi.c 15ms 0.3ms 4.5MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 16ms 0.0ms 3.0MB 10ms 0ms zigcc 0.14.0
c 1-mffi.c 16ms 0.1ms 3.0MB 10ms 0ms zigcc 0.14.0
c 1-mffi.c 16ms 0.7ms 3.5MB 43ms 0ms gcc 15.1.0
c 1-ffi.c 22ms 1.1ms 3.6MB 10ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 25ms 0.4ms 3.8MB 20ms 0ms gcc 15.1.0
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
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
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
c 8-i.c 267ms 0.0ms 1.5MB 260ms 0ms zigcc 0.14.0
c 8-i.c 302ms 1.1ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 309ms 1.2ms 2.3MB 300ms 0ms gcc 15.1.0
c 5.c 313ms 1.1ms 2.3MB 300ms 0ms gcc 15.1.0
c 2.c 315ms 3.3ms 1.5MB 307ms 0ms zigcc 0.14.0
c 5.c 315ms 1.3ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 316ms 1.7ms 1.5MB 307ms 0ms zigcc 0.14.0
c 2.c 318ms 1.3ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 337ms 0.2ms 2.3MB 330ms 0ms gcc 15.1.0
wasm 1.rs 404ms 2.4ms 17.8MB 393ms 0ms wasmtime 32.0.0
wasm 2.rs 563ms 3.0ms 17.9MB 550ms 0ms wasmtime 32.0.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 29ms 0.3ms 1.5MB 20ms 0ms zigcc 0.14.0
c 8-i.c 33ms 0.1ms 2.1MB 23ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 33ms 0.5ms 1.5MB 27ms 0ms zigcc 0.14.0
c 2.c 33ms 0.5ms 2.3MB 27ms 0ms gcc 15.1.0
c 5.c 33ms 0.2ms 2.3MB 27ms 0ms gcc 15.1.0
c 5.c 34ms 0.2ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 35ms 0.4ms 1.5MB 30ms 0ms zigcc 0.14.0
c 2.c 35ms 1.6ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 36ms 0.1ms 2.3MB 30ms 0ms gcc 15.1.0
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

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 279ms 14ms 40.8MB 263ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 281ms 12ms 41.1MB 263ms 0ms gcc 15.1.0
c 1.c 297ms 11ms 40.3MB 280ms 0ms zigcc 0.14.0
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
c 1.c 52ms 3.5ms 11.6MB 43ms 0ms gcc 15.1.0
c 1.c 55ms 4.3ms 11.5MB 47ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 59ms 1.5ms 11.0MB 50ms 0ms zigcc 0.14.0
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

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

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
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
c 3-m.c 739ms 2.6ms 2.0MB 2903ms 0ms gcc 15.1.0
c 6-im.c 958ms 3.1ms 2.0MB 3763ms 0ms gcc 15.1.0
c 4-m.c 997ms 13ms 2.0MB 3907ms 0ms gcc 15.1.0
c 6-im.c 1028ms 44ms 3.3MB 4000ms 10ms clang 14.0.0-1ubuntu1.1
c 4-m.c 1124ms 4.6ms 3.3MB 4410ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1146ms 2.8ms 2.0MB 4513ms 0ms gcc 15.1.0
c 5-im.c 1331ms 1.7ms 3.1MB 5233ms 10ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1851ms 34ms 3.3MB 7240ms 17ms clang 14.0.0-1ubuntu1.1
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
c 3-m.c 195ms 2.1ms 2.0MB 740ms 0ms gcc 15.1.0
c 6-im.c 246ms 0.9ms 2.0MB 940ms 0ms gcc 15.1.0
c 4-m.c 260ms 2.9ms 2.0MB 993ms 0ms gcc 15.1.0
c 6-im.c 261ms 6.0ms 3.3MB 993ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 288ms 1.3ms 3.1MB 1107ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 298ms 5.3ms 2.0MB 1147ms 0ms gcc 15.1.0
c 5-im.c 347ms 7.1ms 3.3MB 1323ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 486ms 22ms 3.1MB 1843ms 7ms clang 14.0.0-1ubuntu1.1
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
c 3-m.c 56ms 0.5ms 2.0MB 200ms 0ms gcc 15.1.0
c 6-im.c 70ms 0.6ms 3.3MB 243ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 72ms 0.5ms 2.0MB 260ms 0ms gcc 15.1.0
c 6-im.c 75ms 11ms 2.0MB 257ms 0ms gcc 15.1.0
c 4-m.c 79ms 3.5ms 3.3MB 280ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 81ms 1.2ms 2.0MB 293ms 0ms gcc 15.1.0
c 5-im.c 91ms 0.1ms 3.1MB 330ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 124ms 3.0ms 3.3MB 450ms 0ms clang 14.0.0-1ubuntu1.1
wasm 2.rs 239ms 1.7ms 17.4MB 223ms 0ms wasmtime 32.0.0
wasm 7.rs 315ms 1.9ms 18.2MB 300ms 0ms wasmtime 32.0.0