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How to use startProfiling method in Playwright Internal
Best JavaScript code snippet using playwright-internal
profile.js
Source:profile.js 
...12 datadir = params.datadir;13 eventEmitter = params.eventEmitter;14 logger.info('Profiler initialized', { datadir });15};16function startProfiling(req, res) {17 const timestamp = Date.now();18 const timeout = req.params && req.params.timeout || 5000;19 const id = `profile-${timeout}ms-${timestamp}`;20 profiler.startProfiling(id);21 setStatus(id, 'started', timeout);22 setTimeout(() => stopProfiling(id), timeout);23 res.status(200).send(`Started profiling for ${timeout} seconds\nid: ${id}\n`);24}25function stopProfiling(id) {26 const profile = profiler.stopProfiling(id);27 try {28 fs.writeFile(`${datadir}/${id}.cpuprofile`, JSON.stringify(profile));29 setStatus(id, 'finished');30 } catch (err) {31 setStatus(id, 'failed', err.message);32 }33}34function setStatus(id, status, data) {...
track-type-dependecy-test.js
Source:track-type-dependecy-test.js
...6 setup(() => {7 resetProfiler();8 });9 test('it reports the types used in a query', () => {10 startProfiling();11 // eslint-disable-next-line no-new12 new Query(typeBundle, (root) => {13 root.add('shop', (shop) => {14 shop.add('name');15 shop.addConnection('products', (products) => {16 products.add('handle');17 products.addConnection('variants', (variants) => {18 variants.add('price');19 });20 });21 });22 });23 assert.deepEqual(captureTypeProfile(), [24 'Boolean',25 'ID',26 'Money',27 'PageInfo',28 'Product',29 'ProductConnection',30 'ProductEdge',31 'ProductVariant',32 'ProductVariantConnection',33 'ProductVariantEdge',34 'QueryRoot',35 'Shop',36 'String'37 ]);38 });39 test('it pauses tracking when `pauseProfiling` is called', () => {40 startProfiling();41 // eslint-disable-next-line no-new42 new Query(typeBundle, (root) => {43 root.add('shop', (shop) => {44 shop.add('name');45 });46 });47 pauseProfiling();48 // eslint-disable-next-line no-new49 new Query(typeBundle, (root) => {50 root.add('shop', (shop) => {51 shop.add('name');52 shop.addConnection('products', (products) => {53 products.add('handle');54 products.addConnection('variants', (variants) => {55 variants.add('price');56 });57 });58 });59 });60 startProfiling();61 // eslint-disable-next-line no-new62 new Query(typeBundle, (root) => {63 root.add('node', {id: 'gid://shopfiy/Product/1234'}, (node) => {64 node.add('id');65 });66 });67 assert.deepEqual(captureTypeProfile(), [68 'ID',69 'Node',70 'QueryRoot',71 'Shop',72 'String'73 ]);74 });75 test('it clears the tracked types when `resetProfiler` is called', () => {76 startProfiling();77 // eslint-disable-next-line no-new78 new Query(typeBundle, (root) => {79 root.add('shop', (shop) => {80 shop.add('name');81 });82 });83 resetProfiler();84 assert.deepEqual(captureTypeProfile(), []);85 });86 test('it stops tracking when `resetTypes` is called (returning the tracker to it\'s initial state.', () => {87 startProfiling();88 resetProfiler();89 // eslint-disable-next-line no-new90 new Query(typeBundle, (root) => {91 root.add('shop', (shop) => {92 shop.add('name');93 });94 });95 assert.deepEqual(captureTypeProfile(), []);96 });...
Scatter.js
Source:Scatter.js
1var _ = require('lodash'),2 Container = require('./Container'),3 CONSTANTS = require('./constants'),4 fs = require('fs'),5 path = require('path'),6 Resolver = require('./Resolver');7/**8 *9 */10function Scatter(options) {11 this.options = options = options ? _.clone(options) : {};12 13 _.defaults(options, {14 instantiateTimeout: 5000,15 initializeTimeout: 500016 });17 18 if(options.log !== void 0) {19 this.log = options.log;20 } else {21 this.log = options.log = function(){};22 }23 24 if(options.startProfiling !== void 0) {25 this.startProfiling = options.startProfiling;26 } else {27 this.startProfiling = options.startProfiling = function(){28 return {29 start: function(){},30 pause: function(){},31 end: function(){}32 };33 };34 }35 this.resolver = new Resolver(options);36 37 38 options.plugins = options.plugins || [];39 40 var pluginsRoot = path.join(__dirname, 'plugins');41 options.plugins = options.plugins.concat(fs.readdirSync(pluginsRoot)42 .map(function(plugin) {43 var pluginClass = require(path.join(pluginsRoot, plugin));44 return new pluginClass();45 }));46 this.container = new Container(this.resolver, options);47}48Scatter.prototype.registerParticles = function() {49 return this.resolver.registerParticles.apply(this.resolver, arguments);50};51Scatter.prototype.registerParticle = function() {52 return this.resolver.registerParticles.apply(this.resolver, arguments);53};54Scatter.prototype.setNodeModulesDir = function() {55 return this.resolver.setNodeModulesDir.apply(this.resolver, arguments);56};57Scatter.prototype.assemble = function(scope) {58 return this.container.assemble(scope);59};60/**61 *62 * @returns {*}63 * @private64 */65Scatter.prototype.initializeAll = function() {66 return this.container.initializeAll();67};68Scatter.prototype.load = function(name) {69 return this.container.load(name, undefined, CONSTANTS.INIT_OPTION_INIT_TREE);70};71Scatter.prototype.newStatefulContainer = function(context) {72 return this.container.newStatefulContainer(context);73};74Scatter.prototype.registerModule = function() {75 return this.container.registerModule.apply(this.container, arguments);76};77Scatter.prototype.registerModuleInstance = function() {78 return this.container.registerModuleInstance.apply(this.container, arguments);79};...
ion-lazy-tables.js
Source:ion-lazy-tables.js
...19 (table (export "table") 10 anyfunc)20 (elem (i32.const 0) $add)21 )`).exports;22 for (var i = 0; i < ITER; i++) {23 startProfiling();24 assertEq(table.get(0)(i, i+1), i*2+1);25 assertEqPreciseStacks(endProfiling(), EXPECTED_STACKS);26 }27}28function withTier2() {29 setJitCompilerOption('wasm.delay-tier2', 1);30 var module = new WebAssembly.Module(wasmTextToBinary(`(module31 (func $add (result i32) (param i32) (param i32)32 get_local 033 get_local 134 i32.add35 )36 (table (export "table") 10 anyfunc)37 (elem (i32.const 0) $add)38 )`));39 var { table } = new WebAssembly.Instance(module).exports;40 let i = 0;41 do {42 i++;43 startProfiling();44 assertEq(table.get(0)(i, i+1), i*2+1);45 assertEqPreciseStacks(endProfiling(), EXPECTED_STACKS);46 } while (!wasmHasTier2CompilationCompleted(module));47 for (i = 0; i < ITER; i++) {48 startProfiling();49 assertEq(table.get(0)(i, i+1), i*2+1);50 assertEqPreciseStacks(endProfiling(), EXPECTED_STACKS);51 }52 setJitCompilerOption('wasm.delay-tier2', 0);53}54enableGeckoProfiling();55main();56withTier2();...
profiler.js
Source:profiler.js
...66 }67 return new Snapshot(path);68}69/**70 * startProfiling()71 * startProfiling(path)72 * startProfiling(duration)73 * startProfiling(path, duration)74 */75function startProfiling() {76 var path = `${process.cwd()}/Profile-${Date.now()}`;77 var duration = -1;78 if (arguments.length === 1) {79 if (typeof (arguments[0]) === 'number') {80 duration = arguments[0];81 } else if (typeof (arguments[0]) === 'string') {82 path = arguments[0];83 }84 } else if (arguments.length === 2) {85 path = arguments[0];86 duration = arguments[1];87 }88 native.startProfiling(path, duration);89}90function stopProfiling() {91 native.stopProfiling();92 return new Profile();93}94exports.takeSnapshot = takeSnapshot;95exports.startProfiling = startProfiling;...
profiling.js
Source:profiling.js
...9 timeoutProfiling = setTimeout(resetProfiler, timeoutProfilingDuration);10 const profile = profiler.stopProfiling();11 profile.delete();12 profiler.deleteAllProfiles();13 profiler.startProfiling(new Date().getTime().toString());14 return profile;15}16function startProfiling(opts) {17 if (!opts)18 opts = {};19 const samplingInterval = !!opts.samplingInterval ? opts.samplingInterval : DEFAULT_SAMPLING_INTERVAL;20 profiler.setSamplingInterval(samplingInterval);21 profiler.startProfiling(new Date().getTime().toString());22 timeoutProfiling = setTimeout(resetProfiler, timeoutProfilingDuration);23};24function stopProfiling() {25 if (!!timeoutProfiling)26 clearTimeout(timeoutProfiling);27 const profile = profiler.stopProfiling();28 profile.delete();29 profiler.deleteAllProfiles();30}...
anyref-global-prebarrier.js
Source:anyref-global-prebarrier.js
...16if (!isSingleStepProfilingEnabled) {17 quit(0);18}19enableGeckoProfiling();20startProfiling();21gczeal(4, 1);22e.set(obj);23gczeal(0);24assertEqPreciseStacks(endProfiling(), [['', '!>', '0,!>', '!>', '']]);25startProfiling();26gczeal(4, 1);27e.set(null);28gczeal(0);29// We're losing stack info in the prebarrier code....
binding.test.js
Source:binding.test.js
1const assert = require('assert')2const { startProfiling } = require('../lib/binding')3assert.ok(startProfiling)4assert.strictEqual(typeof startProfiling, 'function')...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const profile = await page._startProfiling({ path: 'trace.json' });7 await page.click('text=Get started');8 await profile.stop();9 await browser.close();10})();11{12 {13 "args": {}14 },15 {16 "args": {}17 }18}19{20 {21 "args": {}22 },23 {24 "args": {}25 }26}27{28 {
Using AI Code Generation
1const fs = require('fs');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.screenshot({ path: 'google.png' });8 await page.startProfiling();9 const profile = await page.stopProfiling();10 fs.writeFileSync('profile.cpuprofile', JSON.stringify(profile));11 await browser.close();12})();13We can also use the startProfiling() method to start recording the CPU profile of a specific page. This method accepts an optional argument which is an object with the following properties:14The following example demonstrates how to use the startProfiling() method to start recording the CPU profile of a specific page:15const fs = require('fs');16const { chromium } = require('playwright');17(async () => {18 const browser = await chromium.launch();19 const context = await browser.newContext();20 const page = await context.newPage();21 await page.screenshot({ path: 'google.png' });22 await page.startProfiling({ path: 'profile.cpuprofile' });23 await browser.close();24})();25The stopProfiling() method can be used to stop recording the CPU profile. This method returns a Promise which resolves to a profile object. The profile object can be saved to a file using
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.evaluate(() => {7 window.playwright.startProfiling();8 });9 const profile = await page.evaluate(() => {10 return window.playwright.stopProfiling();11 });12 console.log(profile);13 await browser.close();14})();15import { chromium } from 'playwright';16(async () => {17 const browser = await chromium.launch();18 const context = await browser.newContext();19 const page = await context.newPage();20 await page.evaluate(() => {21 window.playwright.startProfiling();22 });23 const profile = await page.evaluate(() => {24 return window.playwright.stopProfiling();25 });26 console.log(profile);27 await browser.close();28})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 await page.startProfiling();6 const profile = await page.stopProfiling();7 await profile.saveAs('trace.zip');8 await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12 const browser = await chromium.launch();13 const page = await browser.newPage();14 await page.startTracing();15 const trace = await page.stopTracing();16 await trace.saveAs('trace.zip');17 await browser.close();18})();19const { chromium } = require('playwright');20(async () => {21 const browser = await chromium.launch();22 const page = await browser.newPage();23 await page.startVideoRecording();24 await page.stopVideoRecording();25 await browser.close();26})();27const { chromium } = require('playwright');28(async () => {29 const browser = await chromium.launch();30 const page = await browser.newPage();31 await page.startTracing();32 const trace = await page.stopTracing();33 await trace.saveAs('trace.zip');34 await browser.close();35})();36const { chromium } = require('playwright');37(async () => {38 const browser = await chromium.launch();39 const page = await browser.newPage();40 await page.startVideoRecording();41 await page.stopVideoRecording();42 await browser.close();43})();44const { chromium } = require('playwright');
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch();4 const page = await browser.newPage();5 await page.startProfiling({path: 'test.cpuprofile'});6 await page.evaluate(() => {7 let sum = 0;8 for (let i = 0; i < 100000000; i++) {9 sum += i;10 }11 return sum;12 });13 await page.stopProfiling();14 await browser.close();15})();
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch();4 const page = await browser.newPage();5 const profile = await page.context().startProfiling({path: 'profile.json'});6 await profile.stop();7 await browser.close();8})();9const playwright = require('playwright');10(async () => {11 const browser = await playwright.chromium.launch();12 const page = await browser.newPage();13 const profile = await page.context().startProfiling({path: 'profile.json'});14 await profile.stop();15 await browser.close();16})();17const playwright = require('playwright');18(async () => {19 const browser = await playwright.chromium.launch();20 const page = await browser.newPage();21 const snapshot = await page.context().saveSnapshot({path: 'snapshot.json'});22 await browser.close();23})();24const playwright = require('playwright');25(async () => {26 const browser = await playwright.chromium.launch();27 const page = await browser.newPage();28 await page.context().loadSnapshot({path: 'snapshot.json'});29 await browser.close();30})();31const playwright = require('playwright');32(async () => {33 const browser = await playwright.chromium.launch();34 const page = await browser.newPage();35 const trace = await page.context().startTracing({path: 'trace.json'});36 await trace.stop();37 await browser.close();38})();39const playwright = require('playwright');40(async () => {41 const browser = await playwright.chromium.launch();42 const page = await browser.newPage();43 const trace = await page.context().startTracing({path: 'trace.json'});44 await trace.stop();45 await browser.close();46})();47const playwright = require('playwright');48(async () => {
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3const browser = await chromium.launch();4const page = await browser.newPage();5await page._startProfiling();6await page.click('text=Sign in');7await page._stopProfiling();8await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12const browser = await chromium.launch();13const page = await browser.newPage();14await page._startProfiling();15await page.click('text=Sign in');16await page._stopProfiling();17await browser.close();18})();19const { chromium } = require('playwright');20(async () => {21const browser = await chromium.launch();22const page = await browser.newPage();23await page._startTracing();24await page.click('text=Sign in');25await page._stopTracing();26await browser.close();27})();28const { chromium } = require('playwright');29(async () => {30const browser = await chromium.launch();31const page = await browser.newPage();32await page._startTracing();33await page.click('text=Sign in');34await page._stopTracing();35await browser.close();36})();37const { chromium } = require('playwright');38(async () => {39const browser = await chromium.launch();40const page = await browser.newPage();41await page._startJSCoverage();42await page.click('text=Sign in');43const coverage = await page._stopJSCoverage();44await browser.close();45})();
Using AI Code Generation
1const profile = await page._internal.startProfiling({ name: 'profile-name' });2const profile = await page._internal.stopProfiling({ name: 'profile-name' });3const profile = await page._internal.takeSnapshot({ name: 'profile-name' });4const profile = await page._internal.takeSnapshot({ name: 'profile-name' });5const profile = await page._internal.saveSnapshot({ name: 'profile-name' });6const profile = await page._internal.getProfile({ name: 'profile-name' });7const profile = await page._internal.getProfile({ name: 'profile-name' });8const profile = await page._internal.getProfile({ name: 'profile-name' });9const profile = await page._internal.getProfile({ name: 'profile-name' });10const profile = await page._internal.getProfile({ name: 'profile-name' });
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