benchmark: add webstorage benchmark

benchmark/webstorage/getItem.js

@@ -0,0 +1,75 @@
+'use strict';
+const { join } = require('node:path');
+const common = require('../common.js');
+const tmpdir = require('../../test/common/tmpdir');
+
+let cnt = 0;
+
+tmpdir.refresh();
+
+function nextLocalStorage() {
+  return join(tmpdir.path, `${++cnt}.localstorage`);
+}
+
+const options = {
+  flags: ['--experimental-webstorage', `--localstorage-file=${nextLocalStorage()}`],
+};
+
+const bench = common.createBenchmark(main, {
+  type: ['localStorage-getItem',
+         'localStorage-getter',
+         'sessionStorage-getItem',
+         'sessionStorage-getter'],
+  // Note: web storage has only 10mb quota
+  n: [1e5],
+}, options);
+
+function fillStorage(storage, n) {
+  for (let i = 0; i < n; i++) {
+    storage.setItem(i, i);
+  }
+}
+
+function main({ n, type }) {
+  const localStorage = globalThis.localStorage;
+  const sessionStorage = globalThis.sessionStorage;
+
+  switch (type) {
+    case 'localStorage-getItem':
+      fillStorage(localStorage, n);
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        localStorage.getItem(i);
+      }
+      bench.end(n);
+      break;
+    case 'localStorage-getter':
+      fillStorage(localStorage, n);
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        // eslint-disable-next-line no-unused-expressions
+        localStorage[i];
+      }
+      bench.end(n);
+      break;
+    case 'sessionStorage-getItem':
+      fillStorage(sessionStorage, n);
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        sessionStorage.getItem(i);
+      }
+      bench.end(n);
+      break;
+    case 'sessionStorage-getter':
+      fillStorage(sessionStorage, n);
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        // eslint-disable-next-line no-unused-expressions
+        sessionStorage[i];
+      }
+      bench.end(n);
+      break;
+    default:
+      new Error('Invalid type');
+  }
+}

benchmark/webstorage/removeItem.js

@@ -0,0 +1,55 @@
+'use strict';
+const { join } = require('node:path');
+const common = require('../common.js');
+const tmpdir = require('../../test/common/tmpdir');
+
+let cnt = 0;
+
+tmpdir.refresh();
+
+function nextLocalStorage() {
+  return join(tmpdir.path, `${++cnt}.localstorage`);
+}
+
+const options = {
+  flags: ['--experimental-webstorage', `--localstorage-file=${nextLocalStorage()}`],
+};
+
+const bench = common.createBenchmark(main, {
+  type: ['localStorage',
+         'sessionStorage'],
+  // Note: web storage has only 10mb quota
+  n: [1e5],
+}, options);
+
+function fillStorage(storage, n) {
+  for (let i = 0; i < n; i++) {
+    storage.setItem(i, i);
+  }
+}
+
+function main({ n, type }) {
+  const localStorage = globalThis.localStorage;
+  const sessionStorage = globalThis.sessionStorage;
+
+  switch (type) {
+    case 'localStorage':
+      fillStorage(localStorage, n);
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        localStorage.removeItem(i);
+      }
+      bench.end(n);
+      break;
+    case 'sessionStorage':
+      fillStorage(sessionStorage, n);
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        sessionStorage.removeItem(i);
+      }
+      bench.end(n);
+      break;
+    default:
+      new Error('Invalid type');
+  }
+}

benchmark/webstorage/setItem.js

@@ -0,0 +1,63 @@
+'use strict';
+const { join } = require('node:path');
+const common = require('../common.js');
+const tmpdir = require('../../test/common/tmpdir');
+
+let cnt = 0;
+
+tmpdir.refresh();
+
+function nextLocalStorage() {
+  return join(tmpdir.path, `${++cnt}.localstorage`);
+}
+
+const options = {
+  flags: ['--experimental-webstorage', `--localstorage-file=${nextLocalStorage()}`],
+};
+
+const bench = common.createBenchmark(main, {
+  type: ['localStorage-setItem',
+         'localStorage-setter',
+         'sessionStorage-setItem',
+         'sessionStorage-setter'],
+  // Note: web storage has only 10mb quota
+  n: [1e5],
+}, options);
+
+function main({ n, type }) {
+  const localStorage = globalThis.localStorage;
+  const sessionStorage = globalThis.sessionStorage;
+
+  switch (type) {
+    case 'localStorage-setItem':
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        localStorage.setItem(i, i);
+      }
+      bench.end(n);
+      break;
+    case 'localStorage-setter':
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        localStorage[i] = i;
+      }
+      bench.end(n);
+      break;
+    case 'sessionStorage-setItem':
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        sessionStorage.setItem(i, i);
+      }
+      bench.end(n);
+      break;
+    case 'sessionStorage-setter':
+      bench.start();
+      for (let i = 0; i < n; i++) {
+        sessionStorage[i] = i;
+      }
+      bench.end(n);
+      break;
+    default:
+      new Error('Invalid type');
+  }
+}