Memory Inspector watches memory usage/behavior of an Web Application. Currently it runs over Puppeteer, which is an API to control headless Chrome or Chromium over the DevTools Protocol.
yarn add --dev memory-inspectorconst memoryInspector = require('memory-inspector') const config = { url: 'http://localhost:3000', maxMemoryLimit: 20 * 1048576, // should not pass of 20MB maxMemoryPercentThreshold: 90, // should not pass 90% of total memory } memoryInspector(config).then((info) => console.log(info)) /* { "exceededMemoryMaximum": 1528951424, "exceededMemoryUsagePercent": true, "jsHeapSizeLimit": "2.19 GB", "memoryUsagePercent": 21900000, "totalJSHeapSize": "1.53 GB", "usedJSHeapSize": "1.53 GB" } */const memoryInspector = require('memory-inspector') const config = { url: 'http://127.0.0.1:8080', delay: 300, formatted: false, // default is true maxMemoryLimit: 20 * 1048576, // should not pass of 20MB maxMemoryPercentThreshold: 90, // should not pass 90% of total memory waitUntil: ['domContentLoaded'], // wait for browser events } memoryInspector(config).then((info) => console.log(info)) /* { usedJSHeapSize: 10000000, totalJSHeapSize: 11900000, jsHeapSizeLimit: 2190000000, memoryUsagePercent: 438000000, exceededMemoryMaximum: -10971520, exceededMemoryUsagePercent: false } */<string> URL to navigate page to. The url should include scheme, e.g. https://
<boolean> Define if will format bytes into sizes, like: 2190000000 to 2.19 GB. By default it's true.
<number> Slows down report by the specified amount of milliseconds.
<number> Sets maximum memory limit which can be used by application, it will reflect on exceededMemoryMaximum report.
<number> Sets maximum memory percent threshold on application, it will reflect on exceededMemoryUsagePercent report.
<string|array<string>> When to consider navigation succeeded. Given an array of event strings, navigation is considered to be successful after all events have been fired.
- Iterate report operations by configuration
- Prediction report
- Integrate with Jest
- Write decent tests
- Allows to specify executable based on Webkit Binaries
A Thanks to Puppeteer.
Made by Raphael Amorim, Licensed by MIT