Programming Language and compiler
Benchmarks

Wasm VS C benchmarks

Current benchmark data was generated on Mon May 19 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 4.rs 1799ms 13ms 33.8MB 1780ms 10ms wasmtime 32.0.0
wasm 5.rs 1807ms 26ms 33.8MB 1787ms 3ms wasmtime 32.0.0
wasm 3.rs 1837ms 50ms 49.8MB 1807ms 17ms wasmtime 32.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 5.rs 170ms 0.4ms 19.8MB 157ms 0ms wasmtime 32.0.0
wasm 3.rs 172ms 3.8ms 21.7MB 160ms 0ms wasmtime 32.0.0
wasm 4.rs 172ms 1.7ms 19.7MB 160ms 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 1141ms 15ms 20.2MB 1127ms 0ms wasmtime 32.0.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 83ms 1.7ms 18.3MB 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 420ms 2.0ms 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 114ms 1.7ms 19.0MB 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 4187ms 38ms 17.3MB 4177ms 0ms wasmtime 32.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 350ms 1.9ms 19.2MB 340ms 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 234ms 2.0ms 17.9MB 220ms 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 0.9ms 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 0.9ms 0.0ms 1.4MB 0ms 0ms zigcc 0.14.0
c 1.c 1.2ms 0.1ms 2.1MB 0ms 0ms gcc 15.1.0
c 1.c 1.3ms 0.0ms 2.1MB 0ms 0ms clang 14.0.0-1ubuntu1.1
wasm 1.rs 6.8ms 0.2ms 18.0MB 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 89ms 0.7ms 17.5MB 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 252ms 2.7ms 19.4MB 240ms 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 47ms 0.6ms 17.9MB 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 211ms 5.6ms 7.5MB 787ms 13ms clang 14.0.0-1ubuntu1.1
c 1-mffi.c 270ms 9.6ms 6.6MB 820ms 0ms gcc 15.1.0
c 1-mffi.c 329ms 0.2ms 6.0MB 320ms 0ms zigcc 0.14.0
c 1-ffi.c 331ms 2.0ms 6.0MB 320ms 0ms zigcc 0.14.0
c 1-ffi.c 460ms 4.3ms 6.7MB 447ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 542ms 0.1ms 6.8MB 530ms 0ms gcc 15.1.0
wasm 8.rs 819ms 2.4ms 20.8MB 803ms 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 4.6MB 30ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 16ms 0.4ms 3.0MB 10ms 0ms zigcc 0.14.0
c 1-mffi.c 16ms 0.2ms 3.0MB 10ms 0ms zigcc 0.14.0
c 1-mffi.c 18ms 2.4ms 3.8MB 47ms 0ms gcc 15.1.0
c 1-ffi.c 22ms 0.4ms 3.8MB 13ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 26ms 1.0ms 3.6MB 20ms 0ms gcc 15.1.0
wasm 8.rs 43ms 0.2ms 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 901ms 10ms 43.7MB 873ms 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 2.6ms 23.7MB 180ms 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 266ms 0.1ms 1.5MB 260ms 0ms zigcc 0.14.0
c 8-i.c 301ms 2.3ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 308ms 0.2ms 2.3MB 300ms 0ms gcc 15.1.0
c 5.c 313ms 0.9ms 2.3MB 300ms 0ms gcc 15.1.0
c 2.c 315ms 2.1ms 1.5MB 307ms 0ms zigcc 0.14.0
c 5.c 316ms 0.9ms 1.5MB 310ms 0ms zigcc 0.14.0
c 5.c 317ms 1.4ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 320ms 3.6ms 2.1MB 310ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 337ms 0.3ms 2.3MB 330ms 0ms gcc 15.1.0
wasm 1.rs 407ms 0.1ms 18.2MB 393ms 0ms wasmtime 32.0.0
wasm 2.rs 563ms 1.8ms 17.8MB 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 0.6ms 1.5MB 20ms 0ms zigcc 0.14.0
c 8-i.c 33ms 0.7ms 2.1MB 23ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 33ms 0.4ms 2.3MB 30ms 0ms gcc 15.1.0
c 5.c 33ms 0.1ms 2.3MB 27ms 0ms gcc 15.1.0
c 5.c 34ms 0.4ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 34ms 1.0ms 1.5MB 30ms 0ms zigcc 0.14.0
c 5.c 34ms 0.7ms 1.5MB 30ms 0ms zigcc 0.14.0
c 8-i.c 36ms 0.4ms 2.3MB 30ms 0ms gcc 15.1.0
c 2.c 38ms 2.0ms 2.1MB 30ms 0ms clang 14.0.0-1ubuntu1.1
wasm 1.rs 49ms 0.9ms 18.0MB 40ms 0ms wasmtime 32.0.0
wasm 2.rs 65ms 1.2ms 18.1MB 53ms 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 282ms 11ms 40.9MB 263ms 0ms gcc 15.1.0
c 1.c 303ms 3.8ms 40.8MB 287ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 307ms 13ms 40.3MB 290ms 0ms zigcc 0.14.0
wasm 2.rs 368ms 9.3ms 22.8MB 357ms 0ms wasmtime 32.0.0
wasm 1.rs 476ms 1.3ms 56.7MB 460ms 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 2.8ms 11.8MB 40ms 0ms gcc 15.1.0
c 1.c 53ms 2.1ms 11.7MB 40ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 58ms 3.4ms 11.0MB 47ms 0ms zigcc 0.14.0
wasm 1.rs 96ms 3.0ms 27.5MB 83ms 0ms wasmtime 32.0.0
wasm 2.rs 97ms 2.1ms 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 2153ms 20ms 19.1MB 2140ms 0ms wasmtime 32.0.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 504ms 1.2ms 18.1MB 490ms 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 3424ms 13ms 17.6MB 3410ms 0ms wasmtime 32.0.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 862ms 4.0ms 17.6MB 850ms 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 736ms 1.0ms 2.3MB 2893ms 0ms gcc 15.1.0
c 6-im.c 952ms 1.7ms 2.0MB 3753ms 0ms gcc 15.1.0
c 4-m.c 989ms 1.3ms 2.1MB 3890ms 0ms gcc 15.1.0
c 6-im.c 1001ms 0.7ms 3.1MB 3933ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 1118ms 0.5ms 3.3MB 4400ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1174ms 26ms 2.3MB 4553ms 0ms gcc 15.1.0
c 5-im.c 1341ms 14ms 3.3MB 5260ms 3ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1846ms 16ms 3.3MB 7243ms 10ms clang 14.0.0-1ubuntu1.1
wasm 2.rs 3700ms 13ms 17.7MB 3687ms 0ms wasmtime 32.0.0
wasm 7.rs 4896ms 4.6ms 17.6MB 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 2.3ms 2.0MB 737ms 0ms gcc 15.1.0
c 6-im.c 246ms 1.4ms 2.0MB 947ms 0ms gcc 15.1.0
c 6-im.c 258ms 0.3ms 3.4MB 987ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 259ms 0.8ms 2.1MB 993ms 0ms gcc 15.1.0
c 4-m.c 289ms 1.6ms 3.3MB 1107ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 298ms 7.8ms 2.0MB 1143ms 0ms gcc 15.1.0
c 5-im.c 340ms 1.4ms 3.3MB 1310ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 466ms 4.2ms 3.4MB 1800ms 0ms clang 14.0.0-1ubuntu1.1
wasm 2.rs 932ms 4.9ms 17.6MB 920ms 0ms wasmtime 32.0.0
wasm 7.rs 1230ms 0.5ms 18.1MB 1220ms 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 57ms 1.9ms 2.3MB 193ms 0ms gcc 15.1.0
c 6-im.c 72ms 3.1ms 3.4MB 250ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 73ms 0.8ms 2.0MB 260ms 0ms gcc 15.1.0
c 6-im.c 73ms 7.6ms 2.0MB 260ms 0ms gcc 15.1.0
c 4-m.c 78ms 1.0ms 3.1MB 277ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 81ms 0.3ms 2.0MB 290ms 0ms gcc 15.1.0
c 5-im.c 92ms 0.5ms 3.1MB 330ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 124ms 1.7ms 3.3MB 457ms 0ms clang 14.0.0-1ubuntu1.1
wasm 2.rs 238ms 0.5ms 18.2MB 227ms 0ms wasmtime 32.0.0
wasm 7.rs 314ms 0.7ms 17.9MB 300ms 0ms wasmtime 32.0.0