Programming Language and compiler
Benchmarks

Wasm VS C++ benchmarks

Current benchmark data was generated on Tue Apr 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 1809ms 60ms 33.1MB 1790ms 7ms wasmtime 31.0.0
wasm 3.rs 1854ms 16ms 49.2MB 1827ms 17ms wasmtime 31.0.0
wasm 4.rs 1863ms 11ms 33.2MB 1840ms 10ms wasmtime 31.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 5.rs 174ms 4.1ms 19.3MB 157ms 0ms wasmtime 31.0.0
wasm 3.rs 180ms 2.4ms 21.1MB 163ms 0ms wasmtime 31.0.0
wasm 4.rs 181ms 4.0ms 19.2MB 163ms 0ms wasmtime 31.0.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 1133ms 6.8ms 19.4MB 1117ms 0ms wasmtime 31.0.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 82ms 1.6ms 17.7MB 70ms 0ms wasmtime 31.0.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 421ms 7.8ms 18.6MB 403ms 3ms wasmtime 31.0.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 115ms 2.6ms 18.0MB 103ms 0ms wasmtime 31.0.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 402ms 2.0ms 2.5MB 1547ms 0ms g++ 11.4.0
cpp 1-im.cpp 408ms 6.6ms 3.9MB 1577ms 0ms clang++ 14.0.0-1ubuntu1.1
wasm 1.rs 4154ms 12ms 16.7MB 4137ms 0ms wasmtime 31.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 39ms 0.1ms 2.6MB 130ms 0ms g++ 11.4.0
cpp 1-im.cpp 41ms 1.9ms 3.9MB 127ms 0ms clang++ 14.0.0-1ubuntu1.1
wasm 1.rs 353ms 4.0ms 17.2MB 340ms 0ms wasmtime 31.0.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 237ms 2.6ms 17.5MB 223ms 3ms wasmtime 31.0.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 32ms 0.9ms 17.3MB 20ms 0ms wasmtime 31.0.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.2ms 0.3ms 1.4MB 0ms 0ms g++ 11.4.0
cpp 1.cpp 1.5ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1
wasm 1.rs 7.3ms 1.3ms 17.4MB 0ms 0ms wasmtime 31.0.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 90ms 0.5ms 17.4MB 80ms 0ms wasmtime 31.0.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 255ms 5.4ms 16.9MB 240ms 0ms wasmtime 31.0.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 48ms 1.5ms 17.4MB 37ms 0ms wasmtime 31.0.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 832ms 8.8ms 20.3MB 817ms 0ms wasmtime 31.0.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 43ms 1.1ms 17.4MB 30ms 0ms wasmtime 31.0.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 939ms 69ms 41.1MB 913ms 13ms wasmtime 31.0.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 201ms 2.9ms 23.2MB 183ms 0ms wasmtime 31.0.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.4ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 171ms 0.6ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 315ms 1.3ms 1.9MB 307ms 0ms g++ 11.4.0
cpp 1.cpp 316ms 0.6ms 2.3MB 310ms 0ms clang++ 14.0.0-1ubuntu1.1
wasm 1.rs 413ms 2.3ms 17.1MB 400ms 0ms wasmtime 31.0.0
wasm 2.rs 587ms 3.1ms 17.0MB 573ms 0ms wasmtime 31.0.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 18ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
cpp 0-i.cpp 19ms 0.1ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.3ms 2.4MB 30ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.6ms 1.8MB 27ms 0ms g++ 11.4.0
wasm 1.rs 50ms 1.6ms 17.1MB 37ms 0ms wasmtime 31.0.0
wasm 2.rs 67ms 0.7ms 17.4MB 53ms 0ms wasmtime 31.0.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 376ms 5.1ms 22.0MB 360ms 0ms wasmtime 31.0.0
cpp 1.cpp 486ms 3.2ms 7.3MB 477ms 0ms g++ 11.4.0
wasm 1.rs 510ms 12ms 56.1MB 493ms 0ms wasmtime 31.0.0
cpp 1.cpp 530ms 4.0ms 7.8MB 517ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 99ms 4.3ms 27.0MB 83ms 0ms wasmtime 31.0.0
wasm 2.rs 100ms 2.4ms 18.4MB 83ms 7ms wasmtime 31.0.0
cpp 1.cpp 121ms 1.9ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 133ms 0.3ms 4.1MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 2211ms 7.5ms 18.2MB 2197ms 0ms wasmtime 31.0.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 531ms 6.4ms 17.6MB 513ms 0ms wasmtime 31.0.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 3610ms 3.0ms 16.9MB 3597ms 0ms wasmtime 31.0.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 910ms 1.5ms 16.8MB 897ms 0ms wasmtime 31.0.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 488ms 4.9ms 2.1MB 1897ms 0ms g++ 11.4.0
cpp 8-m.cpp 564ms 132ms 3.5MB 1983ms 13ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 922ms 2.4ms 3.4MB 3613ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 923ms 4.1ms 2.1MB 3630ms 0ms g++ 11.4.0
wasm 2.rs 3602ms 4.5ms 16.9MB 3587ms 0ms wasmtime 31.0.0
wasm 7.rs 4912ms 16ms 16.9MB 4897ms 0ms wasmtime 31.0.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 123ms 1.0ms 3.4MB 457ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 130ms 2.4ms 2.0MB 483ms 0ms g++ 11.4.0
cpp 6-im.cpp 239ms 2.5ms 3.4MB 910ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 240ms 2.5ms 2.0MB 917ms 0ms g++ 11.4.0
wasm 2.rs 910ms 0.9ms 16.7MB 897ms 0ms wasmtime 31.0.0
wasm 7.rs 1240ms 9.5ms 16.9MB 1230ms 0ms wasmtime 31.0.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 40ms 0.4ms 2.0MB 130ms 0ms g++ 11.4.0
cpp 8-m.cpp 41ms 7.8ms 3.4MB 117ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 66ms 1.0ms 3.4MB 227ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 67ms 0.4ms 2.1MB 240ms 0ms g++ 11.4.0
wasm 2.rs 235ms 1.1ms 17.2MB 220ms 0ms wasmtime 31.0.0
wasm 7.rs 321ms 11ms 16.8MB 307ms 0ms wasmtime 31.0.0