CoreMark 1.0 ported to WebAssembly.
CoreMark is a simple, yet sophisticated benchmark that is designed specifically to test the functionality of a processor core. Running CoreMark produces a single-number score allowing users to make quick comparisons between processors.
Source: https://github.com/eembc/coremark
Online demo: here
- coremark.wasm - WASI app
- coremark-minimal.wasm - Simple wasm module with minimal runtime dependencies
- coremark-emcc.* - Emscripten build
You can open it with your browser.
Use any WASI-compatible runtime to run it directly:
# Wasm3 wasm3 coremark.wasm # kanaka/wac wax coremark.wasm # wasmtime wasmtime coremark.wasm # WAVM wavm run coremark.wasm # Wasmer wasmer run --singlepass coremark.wasm wasmer run --cranelift coremark.wasm wasmer run --llvm coremark.wasm # Wasmer-JS (V8) wasmer-js run coremark.wasm # Wasmer-JS (V8 interpreter) node --wasm-interpret-all $(which wasmer-js) run coremark.wasm You can open it with your browser.
Run a local copy:
python3 -m http.server 8000 # visit http://localhost:8000/coremark-emcc.html Using Node.js:
node coremark-emcc.js You can open it with your browser.
Here are some examples of how to load and execute it using different engines:
coremark-minimal.html- JavaScript example using your browser's engine.coremark-minimal.py- Python 3 example usingWasm3engine.wasmi-coremark- Rust example usingWasmtime,Wasm3,wasmi.
To run with any wasm runtime:
- You need to provide an
u64 env.clock_ms()function, which should return current time in milliseconds. - Call
f32 run()function. It should take12..20seconds to execute and return a CoreMark result.
git clone https://github.com/eembc/coremark.git cd coremark # WASI build make compile PORT_DIR=simple CC=wasicc PORT_CFLAGS="-O3" EXE=.wasm # Emscripten build make compile PORT_DIR=simple CC=emcc PORT_CFLAGS="-O3" EXE=-emcc.html # Native 32-bit build, for comparison: make compile PORT_DIR=simple PORT_CFLAGS="-O3" XCFLAGS="-m32" EXE=.elf minimal build is more complex, and requires modification of core_main.c.
Builds were produced using:
# WASIENV wasienv 0.5.4 wasi-sdk 12.0 clang version 11.0.0 (https://github.com/llvm/llvm-project 176249bd6732a8044d457092ed932768724a6f06) # EMCC emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 1.39.12 clang version 11.0.0 (/b/s/w/ir/cache/git/chromium.googlesource.com-external-github.com-llvm-llvm--project eaa55590945a130131a47a4d2b89e3bbdfced79e) 
