CPU Benchmark - single core speed test with Fibonacci Sequence in AssemblyScript

In this short article, I would like to show Fibonacci Sequence test that is run on a single core. The test source code was converted from C++ to AssemblyScript - check source article.

AssemblyScript is like TypeScript with additional restrictions.

Example assembly/index.ts file:

// The entry file of your WebAssembly module.

export function test(): i64[] {
  let tmp: i64, a: i64 = 0, b: i64 = 1;

  const t1: i64 = Date.now();

  for (let i: i64 = 0; i < 10000; ++i) {
      for (let j: i64 = 0; j < 1000000; ++j) {
          tmp = b;
          b = a + b;
          a = tmp;
      }
  }

  const t2: i64 = Date.now();
  const dt: i64 = t2 - t1;

  return [dt, b];
}

Note: b variable returning prevents against automatic optimization.

Example index.js file:

const fs = require('fs');
const loader = require('@assemblyscript/loader');

const imports = { };
const path = __dirname + '/build/optimized.wasm';
const source = fs.readFileSync(path);
const instance = loader.instantiateSync(source, imports);

const pointer = instance.exports.test();
const array = instance.exports.__getInt64Array(pointer);

const time = Number(array[0]);   // time in ms
const result = Number(array[1]); // b variable

console.log(`Time: ${0.001 * time}s`);
console.log(`Result: ${result}`);

Running with Node.js:

node index.js

Example output:

Time: 4.067s
Result: -1667179358074339000

Used Node.js: v16.13.0

Used OS: Windows 10 x64

Used PC:

• Ryzen 9 5900x
• DRR 4 (2x 32GB)
• Samsung SSD M.2 970 EVO (1TB)
• GeForce GTX 970 (4GB RAM)

Project configuration

Simple steps:

1. Create example project:

npm init

Hint: select other name than suggested assemblyscript.

2. Install dependencies:

npm install --save @assemblyscript/loader
npm install --save-dev assemblyscript

Hint: you can install globally as adminitrator AssemnblyScript using: npm install -g assemblyscript.

3. Configure the AssemblyScript project:

npx asinit .

4. Build *.wasm files:

npm run asbuild

Resources

1. AssemblyScript project - GitHub

See also

1. CPU Benchmark - Raspberry PI vs Banana PI - single core speed test with Fibonacci Sequence

2. CPU Benchmark - single core speed test with Fibonacci Sequence in JavaScript

3. CPU Benchmark - single core speed test with Fibonacci Sequence in Java

4. CPU Benchmark - single core speed test with Fibonacci Sequence in Dart

5. CPU Benchmark - single core speed test with Fibonacci Sequence in Python

6. CPU Benchmark - single core speed test with Fibonacci Sequence in PHP

References

1. Node.js (nodejs.org) - Homepage
2. AssemblyScript - Homepage