benchmark.js

import { precise } from 'precise'
import { Lru } from './dist/toad-cache.mjs'

const nth = 2e3
const cache = new Lru(nth)
const data = new Array(nth)

function seed() {
  let i = -1

  while (++i < nth) {
    data[i] = Math.floor(Math.random() * nth)
  }
}

function populate(arg, start = 0) {
  const pnth = arg.max
  let i = -1

  while (++i < pnth) {
    arg.set(i + start, data[i])
  }
}

function get(arg, start = 0) {
  const gnth = arg.max
  let i = -1

  while (++i < gnth) {
    arg.get(i + start, data[i])
  }
}

function bench(n = 0, x = 1, type = 'set') {
  if (type === 'set') {
    seed()

    const timer = precise().start()

    populate(cache, n)
    timer.stop()
    console.log(
      `Run ${x} ${x === 1 ? 'Set' : 'Evict'} (${n === 0 ? 'Low Keys' : 'High Keys'}): ${
        timer.diff() / 1e6
      } ms`,
    )
  } else if (type === 'get') {
    const timer = precise().start()

    get(cache, n)
    timer.stop()
    console.log(`Run ${x} Get (${n === 0 ? 'Low Keys' : 'High Keys'}): ${timer.diff() / 1e6} ms`)
  }
}

console.log(`Benchmarking ${nth} items (random value per run)`)
bench()
bench(nth, 2)
bench(void 0, 3)
bench(nth, 4)
bench(nth, 5, 'get')