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| 1 | +'use strict'; |
| 2 | +const { join } = require('node:path'); |
| 3 | +const common = require('../common.js'); |
| 4 | +const tmpdir = require('../../test/common/tmpdir'); |
| 5 | + |
| 6 | +let cnt = 0; |
| 7 | + |
| 8 | +tmpdir.refresh(); |
| 9 | + |
| 10 | +function nextLocalStorage() { |
| 11 | + return join(tmpdir.path, `${++cnt}.localstorage`); |
| 12 | +} |
| 13 | + |
| 14 | +const options = { |
| 15 | + flags: ['--experimental-webstorage', `--localstorage-file=${nextLocalStorage()}`], |
| 16 | +}; |
| 17 | + |
| 18 | +const bench = common.createBenchmark(main, { |
| 19 | + type: ['localStorage-getItem', |
| 20 | + 'localStorage-getter', |
| 21 | + 'sessionStorage-getItem', |
| 22 | + 'sessionStorage-getter'], |
| 23 | + // Note: web storage has only 10mb quota |
| 24 | + n: [1e5], |
| 25 | +}, options); |
| 26 | + |
| 27 | +function fillStorage(storage, n) { |
| 28 | + for (let i = 0; i < n; i++) { |
| 29 | + storage.setItem(i, i); |
| 30 | + } |
| 31 | +} |
| 32 | + |
| 33 | +function main({ n, type }) { |
| 34 | + const localStorage = globalThis.localStorage; |
| 35 | + const sessionStorage = globalThis.sessionStorage; |
| 36 | + |
| 37 | + switch (type) { |
| 38 | + case 'localStorage-getItem': |
| 39 | + fillStorage(localStorage, n); |
| 40 | + bench.start(); |
| 41 | + for (let i = 0; i < n; i++) { |
| 42 | + localStorage.getItem(i); |
| 43 | + } |
| 44 | + bench.end(n); |
| 45 | + break; |
| 46 | + case 'localStorage-getter': |
| 47 | + fillStorage(localStorage, n); |
| 48 | + bench.start(); |
| 49 | + for (let i = 0; i < n; i++) { |
| 50 | + // eslint-disable-next-line no-unused-expressions |
| 51 | + localStorage[i]; |
| 52 | + } |
| 53 | + bench.end(n); |
| 54 | + break; |
| 55 | + case 'sessionStorage-getItem': |
| 56 | + fillStorage(sessionStorage, n); |
| 57 | + bench.start(); |
| 58 | + for (let i = 0; i < n; i++) { |
| 59 | + sessionStorage.getItem(i); |
| 60 | + } |
| 61 | + bench.end(n); |
| 62 | + break; |
| 63 | + case 'sessionStorage-getter': |
| 64 | + fillStorage(sessionStorage, n); |
| 65 | + bench.start(); |
| 66 | + for (let i = 0; i < n; i++) { |
| 67 | + // eslint-disable-next-line no-unused-expressions |
| 68 | + sessionStorage[i]; |
| 69 | + } |
| 70 | + bench.end(n); |
| 71 | + break; |
| 72 | + default: |
| 73 | + new Error('Invalid type'); |
| 74 | + } |
| 75 | +} |
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