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benchmark_diff.js
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benchmark_diff.js
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const fs = require('fs');
const fileA = JSON.parse(fs.readFileSync(process.argv[2]).toString()),
fileB = JSON.parse(fs.readFileSync(process.argv[3]).toString());
const diffs = fileB.results.map( (resultB) => {
const oldResult = fileA.results.find(
(resultA) => resultA.name === resultB.name,
);
if (!oldResult) {
return { name: resultB.name, diff: null };
}
const diff = ((resultB.ops - oldResult.ops) / oldResult.ops) * 100;
return {
name: resultB.name,
diff,
};
});
console.log(
diffs
.map(
({ name, diff }) =>
`${name}: ${diff.toFixed(2)}% ${
diff > 0 ? 'faster' : diff < 0 ? 'slower' : 'same'
}`,
)
.join('\n')
);
const changed = diffs.filter((item) => item.diff !== null),
average = changed.reduce((a, b) => a + b.diff, 0) / changed.length;
console.log(
`Average: ${average.toFixed(2)}% ${
average > 0 ? 'faster' : average < 0 ? 'slower' : 'same'
}`,
)