Benchmarks for i128 in wasm

Collecting data for https://github.com/WebAssembly/128-bit-arithmetic/

Running benchmarks

First install some dependencies:

• Rust & Cargo
  • run rustup target add wasm32-wasip1 for a compilation target
• Wasmtime
• Node.js & NPM
• JSVU to get some JS runtimes

Then collect data for your native platform:

$ cargo run --release -- --bench --save-baseline native

Wasmtime

$ export CARGO_TARGET_WASM32_WASIP1_RUNNER='wasmtime --dir .'
$ cargo run --release --target wasm32-wasip1 -- --bench --baseline native

Node.js

$ cargo build --release --target wasm32-wasip1
$ node run-node.js target/wasm32-wasip1/release/wasm-benchmark-i128.wasm --bench --baseline native

Browser

$ cargo build --release --target wasm32-wasip1
$ http

Each link at the top can be used to run the benchmark. Note that the formatting is a bit weird

Spidermonkey

Use jsvu to get a spidermonkey executable then:

$ cargo build --release --target wasm32-wasip1
$ spidermonkey -m spidermonkey.js ./global.js \
    ./target/wasm32-wasip1/release/wasm-benchmark-i128.wasm \
    --bench --baseline native

V8

Use jsvu to get a v8 executable then:

$ cargo build --release --target wasm32-wasip1
$ v8 --module v8.js -- \
    ./target/wasm32-wasip1/release/wasm-benchmark-i128.wasm \
    --bench --baseline native

Note that this will "hang" for a moment without intermediate output as results are generated.

JSC

Use jsvu to get a jsc executable then:

$ cargo build --release --target wasm32-wasip1
$ jsc -m jsc.js -- \
    ./target/wasm32-wasip1/release/wasm-benchmark-i128.wasm \
    --bench --baseline native