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'use strict'
const { Bench } = require('tinybench')
const suite = new Bench({
name: 'Library Comparison Benchmarks',
setup: (_task, mode) => {
// Run the garbage collector before warmup at each cycle
if (mode === 'warmup' && typeof globalThis.gc === 'function') {
globalThis.gc()
}
}
})
const STR_LEN = 1e4
const LARGE_ARRAY_SIZE = 2e4
const MULTI_ARRAY_LENGTH = 1e3
const schema = {
title: 'Example Schema',
type: 'object',
properties: {
firstName: {
type: 'string'
},
lastName: {
type: ['string', 'null']
},
age: {
description: 'Age in years',
type: 'integer',
minimum: 0
}
}
}
const schemaCJS = {
title: 'Example Schema',
type: 'object',
properties: {
firstName: {
type: 'string'
},
lastName: {
type: ['string', 'null']
},
age: {
description: 'Age in years',
type: 'number',
minimum: 0
}
}
}
const schemaAJVJTD = {
properties: {
firstName: {
type: 'string'
},
lastName: {
type: 'string',
nullable: true
},
age: {
type: 'uint8'
}
}
}
const arraySchema = {
title: 'array schema',
type: 'array',
items: schema
}
const arraySchemaCJS = {
title: 'array schema',
type: 'array',
items: schemaCJS
}
const arraySchemaAJVJTD = {
elements: schemaAJVJTD
}
const dateFormatSchema = {
description: 'Date of birth',
type: 'string',
format: 'datetime'
}
const dateFormatSchemaCJS = {
description: 'Date of birth',
type: 'string',
format: 'datetime'
}
const obj = {
firstName: 'Matteo',
lastName: 'Collina',
age: 32
}
const date = new Date()
const multiArray = new Array(MULTI_ARRAY_LENGTH)
const largeArray = new Array(LARGE_ARRAY_SIZE)
const CJS = require('compile-json-stringify')
const CJSStringify = CJS(schemaCJS)
const CJSStringifyArray = CJS(arraySchemaCJS)
const CJSStringifyDate = CJS(dateFormatSchemaCJS)
const CJSStringifyString = CJS({ type: 'string' })
const FJS = require('..')
const stringify = FJS(schema)
const stringifyArrayDefault = FJS(arraySchema)
const stringifyArrayJSONStringify = FJS(arraySchema, {
largeArrayMechanism: 'json-stringify'
})
const stringifyDate = FJS(dateFormatSchema)
const stringifyString = FJS({ type: 'string' })
let str = ''
const Ajv = require('ajv/dist/jtd')
const ajv = new Ajv()
const ajvSerialize = ajv.compileSerializer(schemaAJVJTD)
const ajvSerializeArray = ajv.compileSerializer(arraySchemaAJVJTD)
const ajvSerializeString = ajv.compileSerializer({ type: 'string' })
const { createAccelerator } = require('json-accelerator')
const accelStringify = createAccelerator(schema)
const accelArray = createAccelerator(arraySchema)
const accelDate = FJS(dateFormatSchema)
const accelString = FJS({ type: 'string' })
const getRandomString = (length) => {
if (!Number.isInteger(length)) {
throw new Error('Expected integer length')
}
const validCharacters = 'abcdefghijklmnopqrstuvwxyz'
const nValidCharacters = 26
let result = ''
for (let i = 0; i < length; ++i) {
result += validCharacters[Math.floor(Math.random() * nValidCharacters)]
}
return result[0].toUpperCase() + result.slice(1)
}
for (let i = 0; i < STR_LEN; i++) {
largeArray[i] = {
firstName: getRandomString(8),
lastName: getRandomString(6),
age: Math.ceil(Math.random() * 99)
}
str += i
if (i % 100 === 0) {
str += '"'
}
}
for (let i = STR_LEN; i < LARGE_ARRAY_SIZE; ++i) {
largeArray[i] = {
firstName: getRandomString(10),
lastName: getRandomString(4),
age: Math.ceil(Math.random() * 99)
}
}
Number(str)
for (let i = 0; i < MULTI_ARRAY_LENGTH; i++) {
multiArray[i] = obj
}
suite.add('FJS creation', function () {
FJS(schema)
})
suite.add('CJS creation', function () {
CJS(schemaCJS)
})
suite.add('AJV Serialize creation', function () {
ajv.compileSerializer(schemaAJVJTD)
})
suite.add('json-accelerator creation', function () {
createAccelerator(schema)
})
suite.add('JSON.stringify array', function () {
JSON.stringify(multiArray)
})
suite.add('fast-json-stringify array default', function () {
stringifyArrayDefault(multiArray)
})
suite.add('json-accelerator array', function () {
accelArray(multiArray)
})
suite.add('fast-json-stringify array json-stringify', function () {
stringifyArrayJSONStringify(multiArray)
})
suite.add('compile-json-stringify array', function () {
CJSStringifyArray(multiArray)
})
suite.add('AJV Serialize array', function () {
ajvSerializeArray(multiArray)
})
suite.add('JSON.stringify large array', function () {
JSON.stringify(largeArray)
})
suite.add('fast-json-stringify large array default', function () {
stringifyArrayDefault(largeArray)
})
suite.add('fast-json-stringify large array json-stringify', function () {
stringifyArrayJSONStringify(largeArray)
})
suite.add('compile-json-stringify large array', function () {
CJSStringifyArray(largeArray)
})
suite.add('AJV Serialize large array', function () {
ajvSerializeArray(largeArray)
})
suite.add('JSON.stringify long string', function () {
JSON.stringify(str)
})
suite.add('fast-json-stringify long string', function () {
stringifyString(str)
})
suite.add('json-accelerator long string', function () {
stringifyString(str)
})
suite.add('compile-json-stringify long string', function () {
CJSStringifyString(str)
})
suite.add('AJV Serialize long string', function () {
ajvSerializeString(str)
})
suite.add('JSON.stringify short string', function () {
JSON.stringify('hello world')
})
suite.add('fast-json-stringify short string', function () {
stringifyString('hello world')
})
suite.add('json-accelerator short string', function () {
accelString('hello world')
})
suite.add('compile-json-stringify short string', function () {
CJSStringifyString('hello world')
})
suite.add('AJV Serialize short string', function () {
ajvSerializeString('hello world')
})
suite.add('JSON.stringify obj', function () {
JSON.stringify(obj)
})
suite.add('fast-json-stringify obj', function () {
stringify(obj)
})
suite.add('json-accelerator obj', function () {
accelStringify(obj)
})
suite.add('compile-json-stringify obj', function () {
CJSStringify(obj)
})
suite.add('AJV Serialize obj', function () {
ajvSerialize(obj)
})
suite.add('JSON stringify date', function () {
JSON.stringify(date)
})
suite.add('fast-json-stringify date format', function () {
stringifyDate(date)
})
suite.add('json-accelerate date format', function () {
accelDate(date)
})
suite.add('compile-json-stringify date format', function () {
CJSStringifyDate(date)
})
suite.run().then(() => {
for (const task of suite.tasks) {
const hz = task.result.throughput.mean // ops/sec
const rme = task.result.latency.rme // relative margin of error (%)
const samples = task.result.latency.df + 1 // degrees of freedom + 1 = sample count
const formattedHz = hz.toLocaleString('en-US', { maximumFractionDigits: 0 })
const formattedRme = rme.toFixed(2)
const output = `${task.name} x ${formattedHz} ops/sec ±${formattedRme}% (${samples} runs sampled)`
console.log(output)
}
}).catch(err => console.error(`Error: ${err.message}`))