Programming Language and compiler
Benchmarks

C++ VS Wasm 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.)

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 397ms 5.7ms 2.6MB 1537ms 0ms g++ 11.4.0
cpp 1-im.cpp 406ms 9.6ms 3.9MB 1573ms 0ms clang++ 14.0.0-1ubuntu1.1
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
cpp 1-im.cpp 41ms 2.8ms 4.0MB 133ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1-im.cpp 41ms 4.6ms 2.6MB 137ms 0ms g++ 11.4.0
wasm 1.rs 345ms 2.7ms 17.3MB 333ms 0ms wasmtime 32.0.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.0ms 0.0ms 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 6.4ms 0.3ms 16.1MB 0ms 0ms wasmtime 32.0.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.2ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 171ms 0.3ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 314ms 0.8ms 2.3MB 307ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 315ms 2.0ms 1.8MB 303ms 0ms g++ 11.4.0
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
cpp 0-i.cpp 18ms 0.0ms 1.5MB 10ms 0ms g++ 11.4.0
cpp 0-i.cpp 19ms 0.2ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.3ms 2.3MB 27ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.9ms 1.9MB 30ms 0ms g++ 11.4.0
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
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
cpp 1.cpp 487ms 2.7ms 7.3MB 480ms 0ms g++ 11.4.0
cpp 1.cpp 531ms 3.0ms 7.8MB 520ms 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 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
cpp 1.cpp 120ms 1.9ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 131ms 2.1ms 4.1MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 469ms 2.7ms 3.4MB 1823ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 504ms 36ms 2.1MB 1933ms 0ms g++ 11.4.0
cpp 6-im.cpp 919ms 0.8ms 3.4MB 3610ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 921ms 0.4ms 2.3MB 3627ms 0ms g++ 11.4.0
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
cpp 8-m.cpp 124ms 1.3ms 3.4MB 460ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 128ms 0.2ms 2.0MB 480ms 0ms g++ 11.4.0
cpp 6-im.cpp 238ms 1.7ms 3.4MB 907ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 240ms 4.3ms 2.1MB 917ms 0ms g++ 11.4.0
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
cpp 8-m.cpp 39ms 0.1ms 2.0MB 130ms 0ms g++ 11.4.0
cpp 8-m.cpp 40ms 8.1ms 3.5MB 117ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 67ms 0.1ms 2.1MB 240ms 0ms g++ 11.4.0
cpp 6-im.cpp 68ms 4.7ms 3.3MB 230ms 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