├── .gitignore ├── .npmignore ├── .travis.yml ├── LICENSE ├── README.md ├── README_zh.md ├── assets ├── dist │ ├── build.js │ └── build.js.map ├── index.html ├── memeye-logo.png └── memeye.ico ├── client ├── .babelrc ├── .gitignore ├── README.md ├── index.html ├── package.json ├── src │ ├── App.vue │ ├── assets │ │ ├── logo.png │ │ └── memeye.ico │ ├── components │ │ ├── Memeye.vue │ │ ├── Panel.vue │ │ ├── PanelItem.vue │ │ └── charts │ │ │ ├── OSCPUSUsedLine.js │ │ │ ├── OSMemoryLine.js │ │ │ ├── OSMemoryPie.js │ │ │ ├── ProcessDoughnut.js │ │ │ ├── ProcessLine.js │ │ │ ├── V8HeapSpaceBar.js │ │ │ └── V8HeapSpacePie.js │ └── main.js ├── webpack.config.js └── yarn.lock ├── coverage ├── coverage.json ├── lcov-report │ ├── base.css │ ├── index.html │ ├── lib │ │ └── index.html │ ├── prettify.css │ ├── prettify.js │ ├── sort-arrow-sprite.png │ └── sorter.js └── lcov.info ├── example └── small-example.js ├── index.js ├── package.json ├── src ├── dashboard │ ├── index.js │ └── server.js ├── index.js └── lib │ ├── Collector.js │ ├── Indicators.js │ └── Logger.js ├── test ├── bootstarp.js └── unit │ ├── Collector.test.js │ └── Indicators.test.js └── yarn.lock /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | node_modules 3 | coverage 4 | npm-debug.log 5 | yarn-error.log -------------------------------------------------------------------------------- /.npmignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | .gitignore 3 | .travis.yml 4 | client 5 | coverage 6 | example 7 | test 8 | node_modules -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: node_js 2 | node_js: 3 | - "node" 4 | - "6" -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2016-2017 JC-Huang 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 |
3 | memeye logo 4 |
5 | 6 | [![Build Status](https://travis-ci.org/JerryC8080/Memeye.svg?branch=master)](https://travis-ci.org/JerryC8080/Memeye) 7 | [![npm version](https://badge.fury.io/js/memeye.svg)](https://badge.fury.io/js/memeye) 8 | [![Package Quality](http://npm.packagequality.com/shield/memeye.svg)](http://packagequality.com/#?package=memeye) 9 | [![npm](https://img.shields.io/npm/dt/memeye.svg)](https://www.npmjs.com/package/memeye) 10 | [![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/JerryC8080/Memeye/blob/master/LICENSE) 11 | 12 | # Memeye 13 | [中文版](README_zh.md) 14 | 15 | # Introduction 16 | 17 | Memeye is a lightweight NodeJS process monitoring tool that provides data visualization of process memory, V8 heap space memory, and operating system memory. 18 | The front part, with [Vue2](https://github.com/vuejs/vue) and [ChartJS](https://github.com/chartjs/Chart.js), provides a nice dynamic dashboard. 19 | Memeye in the host process, only the implantation of a simple data collector, the other work is to start a child-process, by the child-process to carry out. 20 | This will minimize the impact of Memeye's code on the host process to ensure the authenticity of the data. 21 | 22 | ### Feature 23 | - Lightweight 24 | - Simple 25 | - For development 26 | - Visualization 27 | 28 | 29 | *Note: Memeye only support a single process, NodeJS distributed process is not applicable, it is not recommended in the product environment。* 30 | 31 | # Motivation 32 | As we all know, NodeJS is very sensitive to memory. 33 | In April last year I used NodeJS to build a marketing project, on the day of project online PV broke one million. 34 | Which is showing a continuous upward trend in memory, in the process of troubleshooting problems, i want to find a lightweight, as long as the visual display of the use of memory tools, but no result. 35 | Then there is the idea of this project, but at that time because of the busy only made a simple Demo to use (Memeye v0.0.3). 36 | Recently there is time, once again turned out to reorganize and revision, add more type of the data display. 37 | 38 | 39 | # Demo 40 | [See preview demo](http://jerryc8080.github.io/Memeye/) 41 | 42 | # Compatibility 43 | - Node v7.x 44 | - Node v6.x 45 | 46 | # Install & Usage 47 | 48 | For install simply run : 49 | 50 | ``` 51 | npm install memeye --save-dev 52 | ``` 53 | 54 | Then require it in your nodejs application 55 | 56 | ``` 57 | const memeye = require('memeye'); 58 | memeye(); 59 | ``` 60 | 61 | Then open your browser and load address: 62 | 63 | ``` 64 | http://localhost:23333 //23333 port by default. 65 | ``` 66 | 67 | That's it! No more options, no more config, just so easy. 68 | 69 | # How it works 70 | 71 | Memeye has three core concept: Collector, Indicator and Dashboard. 72 | While Collector runing in your nodejs process, Indicators and Dashboard runing on the child-process, in this way Memeye will make as little influence as possible to your nodejs process. 73 | 74 | ## Collector 75 | Collector will wathching and collecting data from the host node process、v8 heap and operrating system ，then send the datas to dashboard process with IPC communication channel. 76 | 77 | ## Indicator 78 | Indicator like a state machine . When attribute changed, the instance of Indicator will emit an event. So we can use it to handle our indicators data of process, v8 heap and OS. 79 | 80 | ## Dashboard 81 | 82 | The dashboard , will calling at the child process way. It will create an Indicator instance and start a http server which provide a socket.io instance. 83 | Then bind the indicator with process IPC channel, to recive massage from parent process. 84 | And then bind the indicator with socket.io, to send messages while indicator attrbutes changed. 85 | 86 | ## The commication between Collector, Indicator and Dashboard 87 | 88 | ![commication.jpeg](https://raw.githubusercontent.com/JerryC8080/figure-bed/master/img/20190717214117.jpg) 89 | 90 | # Test 91 | Simply run: 92 | 93 | ``` 94 | npm test 95 | ``` 96 | 97 | # Some feature may be 98 | - [ ] Mutil process support 99 | - [ ] Report export 100 | 101 | # License 102 | 103 | [MIT License](LICENSE) 104 | 105 | Copyright (c) 2016-2017 JerryC 106 | -------------------------------------------------------------------------------- /README_zh.md: -------------------------------------------------------------------------------- 1 |
2 | memeye logo 3 |
4 | 5 | [![Build Status](https://travis-ci.org/JerryC8080/Memeye.svg?branch=master)](https://travis-ci.org/JerryC8080/Memeye) 6 | [![npm version](https://badge.fury.io/js/memeye.svg)](https://badge.fury.io/js/memeye) 7 | [![Package Quality](http://npm.packagequality.com/shield/memeye.svg)](http://packagequality.com/#?package=memeye) 8 | [![npm](https://img.shields.io/npm/dt/memeye.svg)](https://www.npmjs.com/package/memeye) 9 | [![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/JerryC8080/Memeye/blob/master/LICENSE) 10 | 11 | # Memeye 12 | [中文版](README_zh.md) 13 | 14 | # 介绍 15 | Memeye 是一个轻量级的 NodeJS 进程监控工具，它提供 进程内存、V8 堆空间内存、操作系统内存 三大维度的数据可视化展示。 16 | 前端部分，借助 [Vue2](https://github.com/vuejs/vue) 和 [ChartJS](https://github.com/chartjs/Chart.js) 提供了一个不错的动态展示面板。 17 | Memeye 在宿主进程中，只植入了一个简单的数据收集器，其他工作则启动一个子进程，交由子进程来进行。 18 | 这样做能把 Memeye 的代码对宿主进程的影响降到最低，以确保数据的真实性。 19 | 20 | ### 特点 21 | - 轻量级 22 | - 简单 23 | - 面向开发环境 24 | - 可视化 25 | 26 | *Note: Memeye 暂时只支持单进程，NodeJS 分布式进程还不适用，所以不建议在产品环境使用。* 27 | 28 | # 动机 29 | 总所周知，NodeJS 对内存是很敏感的。在去年 4 月我用 NodeJS 做的一个营销性的项目，在上线当天 PV 突破了 100W。 30 | 其中内存就呈现出持续上涨趋势，在排查问题的过程中，想寻找一个轻量级的，只要可视化的呈现内存使用情况的工具，无果。 31 | 然后就有了这个项目的想法，但当时由于繁忙只做出了一个 Demo 级别的，简单能用就发布了。 32 | 最近有时间，再次翻出来，重构改版，增加更多维度的数据展示。 33 | 34 | # Demo 35 | [See preview demo](http://jerryc8080.github.io/Memeye/) (也许需要翻墙) 36 | 37 | # 兼容性 38 | - Node v7.x 39 | - Node v6.x 40 | 41 | # 安装 & 使用 42 | 43 | 运行下面命令安装 : 44 | 45 | ``` 46 | npm install memeye --save-dev 47 | ``` 48 | 49 | 50 | 然后在你的代码中引入 51 | 52 | ``` 53 | const memeye = require('memeye'); 54 | memeye(); 55 | ``` 56 | 57 | 最后打开你的浏览器，输入下面地址： 58 | 59 | ``` 60 | http://localhost:23333 //23333 port by defaul. 61 | ``` 62 | 63 | 就这么简单！ 64 | 65 | # Memeye 是如何工作的 66 | 67 | Memeye 有三个核心概念：Collector, Indicators, Dashboard。 68 | Collector 运行在宿主进程中（你的NodeJS进程），Indicator 和 Dashboard 运行在子进程中，这样可以尽量减少 Memeye 代码对你的宿主进程的影响。 69 | 70 | ## Collector 71 | Collector 会监听宿主进程，并且收集数据，然后通过 IPC 通信管道发送数据给子进程，交由子进程处理。 72 | 73 | ## Indicator 74 | Indicator 像一个状态机。当它的属性变化的时候，会触发相应事件。所以我们可以用它来处理收集回来的数据。 75 | 76 | ## Dashboard 77 | Dashboard 会以子进程的形式唤起。他会创建一个 Indicator 实例，以及启动一个集成 socket.io 的 Http 服务器。 78 | 然后绑定 Indicator 和进程通信管道，以接收父进程发过来的数据。 79 | 最后再绑定 Indicator 和 socket.io，这样可以在 Indicator 属性变化的时候发送数据给前端。 80 | 81 | ## Collector, Indicator, Dashboard 之间的通信 82 | 83 | ![commication.jpeg](https://raw.githubusercontent.com/JerryC8080/figure-bed/master/img/20190717214117.jpg) 84 | 85 | 86 | # 测试 87 | 88 | ``` 89 | npm test 90 | ``` 91 | 92 | # 在考虑的功能 93 | - [ ] 支持多进程 94 | - [ ] 支持导出报告 95 | 96 | # 许可 97 | 98 | [MIT License](LICENSE) 99 | 100 | Copyright (c) 2016-2017 JerryC 101 | -------------------------------------------------------------------------------- /assets/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | memeye-client 8 | 9 | 10 | 11 |
12 | 13 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /assets/memeye-logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JerryC8080/Memeye/3ebd694b892896221b9eba28c5730c5d27be978b/assets/memeye-logo.png -------------------------------------------------------------------------------- /assets/memeye.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JerryC8080/Memeye/3ebd694b892896221b9eba28c5730c5d27be978b/assets/memeye.ico -------------------------------------------------------------------------------- /client/.babelrc: -------------------------------------------------------------------------------- 1 | { 2 | "presets": [ 3 | ["latest", { 4 | "es2015": { "modules": false } 5 | }] 6 | ] 7 | } 8 | -------------------------------------------------------------------------------- /client/.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | node_modules/ 3 | dist/ 4 | npm-debug.log 5 | yarn-error.log 6 | -------------------------------------------------------------------------------- /client/README.md: -------------------------------------------------------------------------------- 1 | # memeye-client 2 | 3 | > A Vue.js project 4 | 5 | ## Build Setup 6 | 7 | ``` bash 8 | # install dependencies 9 | npm install 10 | 11 | # serve with hot reload at localhost:8080 12 | npm run dev 13 | 14 | # build for production with minification 15 | npm run build 16 | ``` 17 | 18 | For detailed explanation on how things work, consult the [docs for vue-loader](http://vuejs.github.io/vue-loader). 19 | -------------------------------------------------------------------------------- /client/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | memeye-client 8 | 9 | 10 | 11 |
12 | 13 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /client/package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "memeye-client", 3 | "description": "A Vue.js project", 4 | "version": "1.0.0", 5 | "author": "JerryC", 6 | "private": true, 7 | "scripts": { 8 | "dev": "cross-env NODE_ENV=development webpack-dev-server --open --hot", 9 | "build": "cross-env NODE_ENV=production webpack --progress --hide-modules" 10 | }, 11 | "dependencies": { 12 | "socket.io-client": "^1.7.3", 13 | "vue": "^2.2.1", 14 | "vue-chartjs": "^2.4.1" 15 | }, 16 | "devDependencies": { 17 | "babel-core": "^6.0.0", 18 | "babel-loader": "^6.0.0", 19 | "babel-preset-latest": "^6.0.0", 20 | "cross-env": "^3.0.0", 21 | "css-loader": "^0.25.0", 22 | "file-loader": "^0.9.0", 23 | "vue-loader": "^11.0.0", 24 | "vue-template-compiler": "^2.2.1", 25 | "webpack": "^2.2.0", 26 | "webpack-dev-server": "^2.2.0" 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /client/src/App.vue: -------------------------------------------------------------------------------- 1 | 6 | 7 | 23 | 24 | 51 | -------------------------------------------------------------------------------- /client/src/assets/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JerryC8080/Memeye/3ebd694b892896221b9eba28c5730c5d27be978b/client/src/assets/logo.png -------------------------------------------------------------------------------- /client/src/assets/memeye.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JerryC8080/Memeye/3ebd694b892896221b9eba28c5730c5d27be978b/client/src/assets/memeye.ico -------------------------------------------------------------------------------- /client/src/components/Memeye.vue: -------------------------------------------------------------------------------- 1 | 41 | 42 | 166 | 167 | -------------------------------------------------------------------------------- /client/src/components/Panel.vue: -------------------------------------------------------------------------------- 1 | 22 | 23 | 34 | 35 | 49 | 50 | -------------------------------------------------------------------------------- /client/src/components/PanelItem.vue: -------------------------------------------------------------------------------- 1 | 13 | 14 | 20 | 21 | 48 | 49 | -------------------------------------------------------------------------------- /client/src/components/charts/OSCPUSUsedLine.js: -------------------------------------------------------------------------------- 1 | import { Line, mixins } from 'vue-chartjs'; 2 | const { reactiveProp } = mixins; 3 | 4 | const records = 100; 5 | 6 | let dynamicData = { 7 | labels: new Array(records), 8 | cpus: null, 9 | } 10 | 11 | let colorPool = [ 12 | '#F44336', // Red 13 | '#9C27B0', // Purple 14 | '#2196F3', // Blue 15 | '#8BC34A', // Light Green 16 | '#FFC107', // Amber 17 | '#CDDC39', // Lime 18 | '#00BCD4', // Cyan 19 | ]; 20 | 21 | function caculateData(cpus) { 22 | let now = new Date(); 23 | 24 | let data = { 25 | labels: dynamicData.labels, 26 | datasets: [], 27 | }; 28 | 29 | // Initialize cpus 30 | if (!dynamicData.cpus) { 31 | dynamicData.cpus = cpus.map(() => new Array(100)); 32 | } 33 | 34 | cpus.forEach(function (item, index) { 35 | let used = computedUsed(item.times); 36 | dynamicData.cpus[index].shift(); 37 | dynamicData.cpus[index].push(used); 38 | 39 | data.datasets.push({ 40 | label: `cpu ${index + 1}`, 41 | pointStyle: 'line', 42 | fill: false, 43 | borderColor: colorPool[index], 44 | backgroundColor: colorPool[index], 45 | data: dynamicData.cpus[index], 46 | }); 47 | }); 48 | 49 | return data; 50 | } 51 | 52 | function computedUsed(value) { 53 | var total = value.user + value.nice + value.sys + value.idle + value.irq; 54 | var cpu = ((total - value.idle) / total) * 100; 55 | return cpu; 56 | } 57 | 58 | let line = Line.extend({ 59 | mixins: [reactiveProp], 60 | props: ['options'], 61 | mounted() { 62 | this.renderChart(this.chartData, { 63 | title: { 64 | display: true, 65 | text: 'CPUs Used', 66 | }, 67 | tooltips: { 68 | callbacks: { 69 | label: (item, data) => { 70 | let label = data.datasets[item.datasetIndex].label; 71 | return label + ': ' + Math.floor(item.yLabel * 100) / 100 + ' %'; 72 | } 73 | } 74 | }, 75 | animation: false 76 | }) 77 | } 78 | }); 79 | 80 | line.caculateData = caculateData; 81 | 82 | export default line; 83 | -------------------------------------------------------------------------------- /client/src/components/charts/OSMemoryLine.js: -------------------------------------------------------------------------------- 1 | import { Line, mixins } from 'vue-chartjs' 2 | const { reactiveProp } = mixins 3 | 4 | const records = 100; 5 | 6 | let dynamicData = { 7 | labels: new Array(records), 8 | freeMemData: new Array(records), 9 | usedMemData: new Array(records), 10 | } 11 | 12 | function caculateData(type, value) { 13 | let now = new Date(); 14 | 15 | dynamicData[`${type}Data`].shift(); 16 | dynamicData[`${type}Data`].push(value / 1024 / 1024); 17 | 18 | return { 19 | labels: dynamicData.labels, 20 | datasets: [ 21 | { 22 | label: 'freeMem', 23 | pointStyle: 'line', 24 | borderColor: "rgba(54, 162, 235, 1)", 25 | backgroundColor: 'rgba(54, 162, 235, 0.4)', 26 | data: dynamicData.freeMemData, 27 | }, 28 | { 29 | label: 'usedMem', 30 | pointStyle: 'line', 31 | borderColor: "rgba(255, 99, 132, 1)", 32 | backgroundColor: 'rgba(255, 99, 132, 0.4)', 33 | data: dynamicData.usedMemData, 34 | } 35 | ] 36 | }; 37 | } 38 | 39 | let line = Line.extend({ 40 | mixins: [reactiveProp], 41 | props: ['options'], 42 | mounted() { 43 | this.renderChart(this.chartData, { 44 | title: { 45 | display: true, 46 | text: 'OS Memory Stat', 47 | }, 48 | tooltips: { 49 | callbacks: { 50 | label: (item) => (Math.floor(item.yLabel * 100) / 100 + ' MB') 51 | } 52 | }, 53 | animation: false 54 | }) 55 | } 56 | }); 57 | 58 | line.caculateData = caculateData; 59 | 60 | export default line; 61 | 62 | -------------------------------------------------------------------------------- /client/src/components/charts/OSMemoryPie.js: -------------------------------------------------------------------------------- 1 | import { Pie, mixins } from 'vue-chartjs'; 2 | const { reactiveProp } = mixins; 3 | 4 | function caculateData(freeMem, usedMem) { 5 | return { 6 | labels: [ 7 | "freeMem", 8 | "usedMem", 9 | ], 10 | datasets: [ 11 | { 12 | data: [freeMem, usedMem], 13 | backgroundColor: [ 14 | "#36A2EB", 15 | "#FF6384", 16 | ], 17 | hoverBackgroundColor: [ 18 | "#36A2EB", 19 | "#FF6384", 20 | ] 21 | }] 22 | }; 23 | } 24 | 25 | let pie = Pie.extend({ 26 | mixins: [reactiveProp], 27 | props: ['options'], 28 | mounted() { 29 | this.renderChart(this.chartData, { 30 | title: { 31 | display: true, 32 | text: 'OS Memory Stat', 33 | }, 34 | tooltips: { 35 | callbacks: { 36 | label: (item, data) => { 37 | let val = data.datasets[item.datasetIndex].data[item.index]; 38 | return Math.floor(val / 1024 / 1024 * 100) / 100 + ' MB'; 39 | } 40 | } 41 | }, 42 | animation: false, 43 | }); 44 | } 45 | }); 46 | pie.caculateData = caculateData; 47 | 48 | export default pie; -------------------------------------------------------------------------------- /client/src/components/charts/ProcessDoughnut.js: -------------------------------------------------------------------------------- 1 | import { Doughnut, mixins } from 'vue-chartjs' 2 | const { reactiveProp } = mixins 3 | 4 | function caculateData(heapFree, heapUsed) { 5 | heapFree = heapFree / 1024 / 1024; 6 | heapUsed = heapUsed / 1024 / 1024; 7 | 8 | return { 9 | labels: [ 10 | "heapFree", 11 | "heapUsed", 12 | ], 13 | datasets: [ 14 | { 15 | data: [heapFree, heapUsed], 16 | backgroundColor: [ 17 | "#36A2EB", 18 | "#FF6384", 19 | ], 20 | hoverBackgroundColor: [ 21 | "#36A2EB", 22 | "#FF6384", 23 | ] 24 | }] 25 | }; 26 | } 27 | 28 | let doughnut = Doughnut.extend({ 29 | mixins: [reactiveProp], 30 | props: ['options'], 31 | mounted() { 32 | this.renderChart(this.chartData, { 33 | title: { 34 | display: true, 35 | text: 'Process Memory Stat', 36 | }, 37 | tooltips: { 38 | callbacks: { 39 | label: (item, data) => { 40 | let val = data.datasets[item.datasetIndex].data[item.index]; 41 | return Math.floor(val * 100) / 100 + ' MB'; 42 | } 43 | } 44 | }, 45 | animation: false, 46 | }) 47 | } 48 | }); 49 | 50 | doughnut.caculateData = caculateData; 51 | 52 | export default doughnut; -------------------------------------------------------------------------------- /client/src/components/charts/ProcessLine.js: -------------------------------------------------------------------------------- 1 | import { Line, mixins } from 'vue-chartjs' 2 | const { reactiveProp } = mixins 3 | const records = 100; // second; 4 | 5 | let dynamicData = { 6 | labels: new Array(records), 7 | rssData: new Array(records), 8 | heapTotalData: new Array(records), 9 | heapUsedData: new Array(records), 10 | } 11 | 12 | function caculateData({ type, value }) { 13 | 14 | // dynamicData.labels.shift(); 15 | // dynamicData.labels.push(new Date()); 16 | 17 | dynamicData[`${type}Data`].shift(); 18 | dynamicData[`${type}Data`].push(value / 1024 / 1024); 19 | 20 | return { 21 | labels: dynamicData.labels, 22 | datasets: [ 23 | { 24 | label: 'heapUsed', 25 | pointStyle: 'line', 26 | // fill: false, 27 | borderColor: "rgba(255, 99, 132, 1)", 28 | backgroundColor: 'rgba(255, 99, 132, 0.4)', 29 | data: dynamicData.heapUsedData, 30 | }, 31 | { 32 | label: 'heapTotal', 33 | pointStyle: 'line', 34 | // fill: false, 35 | borderColor: "rgba(54, 162, 235, 1)", 36 | backgroundColor: 'rgba(54, 162, 235, 0.4)', 37 | data: dynamicData.heapTotalData, 38 | }, 39 | { 40 | label: 'rss', 41 | pointStyle: 'line', 42 | // fill: false, 43 | borderColor: "rgba(53, 221, 101, 1)", 44 | backgroundColor: 'rgba(53, 221, 101, 0.4)', 45 | data: dynamicData.rssData, 46 | }, 47 | ] 48 | }; 49 | } 50 | 51 | let line = Line.extend({ 52 | mixins: [reactiveProp], 53 | props: ['options'], 54 | mounted() { 55 | this.renderChart(this.chartData, { 56 | title: { 57 | display: true, 58 | text: 'Process Memory Stat', 59 | }, 60 | tooltips: { 61 | callbacks: { 62 | label: (item) => (Math.floor(item.yLabel * 100) / 100 + ' MB') 63 | } 64 | }, 65 | animation: false 66 | }) 67 | } 68 | }); 69 | 70 | line.caculateData = caculateData; 71 | 72 | export default line; 73 | 74 | -------------------------------------------------------------------------------- /client/src/components/charts/V8HeapSpaceBar.js: -------------------------------------------------------------------------------- 1 | import { Bar, mixins } from 'vue-chartjs'; 2 | const { reactiveProp } = mixins; 3 | 4 | let space = { 5 | newSpace: 0, 6 | oldSpace: 0, 7 | codeSpace: 0, 8 | mapSpace: 0, 9 | largeObjectSpace: 0, 10 | } 11 | 12 | function caculateData(type, val) { 13 | space[type] = val; 14 | return { 15 | labels: [ 16 | 'newSpace', 17 | 'oldSpace', 18 | 'codeSpace', 19 | 'mapSpace', 20 | 'largeObjectSpace', 21 | ], 22 | datasets: [ 23 | { 24 | label: 'Space Used Percent', 25 | backgroundColor: [ 26 | '#9CCC65', 27 | // 'rgba(156, 204, 101, 0.8)', 28 | '#42A5F5', 29 | // 'rgba(33, 150, 243, 0.8)', 30 | '#5C6BC0', 31 | '#FFCA28', 32 | '#8D6E63', 33 | ], 34 | borderColor: [ 35 | '#9CCC65', 36 | '#42A5F5', 37 | '#5C6BC0', 38 | '#FFCA28', 39 | '#8D6E63', 40 | ], 41 | borderWidth: 2, 42 | data: [ 43 | space.newSpace, 44 | space.oldSpace, 45 | space.codeSpace, 46 | space.mapSpace, 47 | space.largeObjectSpace, 48 | ], 49 | }, 50 | ] 51 | }; 52 | } 53 | 54 | let bar = Bar.extend({ 55 | mixins: [reactiveProp], 56 | props: ['options'], 57 | mounted() { 58 | this.renderChart(this.chartData, { 59 | legend: { 60 | display: false, 61 | }, 62 | tooltips: { 63 | callbacks: { 64 | label: function (item, data) { 65 | return Math.floor(item.xLabel * 100) / 100 + ' %'; 66 | } 67 | } 68 | }, 69 | scales: { 70 | xAxes: [{ 71 | ticks: { 72 | min: 0, 73 | max: 100 74 | } 75 | }] 76 | }, 77 | title: { 78 | display: true, 79 | text: 'Space Used Percent', 80 | }, 81 | animation: false, 82 | }, 'horizontalBar'); 83 | } 84 | }); 85 | bar.caculateData = caculateData; 86 | 87 | export default bar; -------------------------------------------------------------------------------- /client/src/components/charts/V8HeapSpacePie.js: -------------------------------------------------------------------------------- 1 | import { Pie, mixins } from 'vue-chartjs'; 2 | const { reactiveProp } = mixins; 3 | 4 | let space = { 5 | newSpace: 0, 6 | oldSpace: 0, 7 | codeSpace: 0, 8 | mapSpace: 0, 9 | largeObjectSpace: 0, 10 | } 11 | 12 | function caculateData(type, val) { 13 | space[type] = val; 14 | return { 15 | labels: [ 16 | 'newSpace', 17 | 'oldSpace', 18 | 'codeSpace', 19 | 'mapSpace', 20 | 'largeObjectSpace', 21 | ], 22 | datasets: [ 23 | { 24 | data: [ 25 | space.newSpace, 26 | space.oldSpace, 27 | space.codeSpace, 28 | space.mapSpace, 29 | space.largeObjectSpace, 30 | ], 31 | backgroundColor: [ 32 | '#9CCC65', 33 | '#42A5F5', 34 | '#5C6BC0', 35 | '#FFCA28', 36 | '#8D6E63', 37 | ], 38 | hoverBackgroundColor: [ 39 | '#7CB342', 40 | '#1E88E5', 41 | '#3949AB', 42 | '#FFB300', 43 | '#6D4C41', 44 | ] 45 | }] 46 | }; 47 | } 48 | 49 | let pie = Pie.extend({ 50 | mixins: [reactiveProp], 51 | props: ['options'], 52 | mounted() { 53 | this.renderChart(this.chartData, { 54 | title: { 55 | display: true, 56 | text: 'V8 Heap Sapce', 57 | }, 58 | tooltips: { 59 | callbacks: { 60 | label: (item, data) => { 61 | let val = data.datasets[item.datasetIndex].data[item.index]; 62 | return Math.floor(val / 1024 * 100) / 100 + ' KB'; 63 | } 64 | } 65 | }, 66 | animation: false, 67 | }); 68 | } 69 | }); 70 | pie.caculateData = caculateData; 71 | 72 | export default pie; 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105 | Code coverage 106 | generated by istanbul at Sun Mar 19 2017 15:17:51 GMT+0800 (CST) 107 |
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92 | Code coverage 93 | generated by istanbul at Mon Mar 06 2017 16:40:41 GMT+0800 (CST) 94 |
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getTableBody() { return getTable().querySelector('tbody'); } 15 | // returns the th element for nth column 16 | function getNthColumn(n) { return getTableHeader().querySelectorAll('th')[n]; } 17 | 18 | // loads all columns 19 | function loadColumns() { 20 | var colNodes = getTableHeader().querySelectorAll('th'), 21 | colNode, 22 | cols = [], 23 | col, 24 | i; 25 | 26 | for (i = 0; i < colNodes.length; i += 1) { 27 | colNode = colNodes[i]; 28 | col = { 29 | key: colNode.getAttribute('data-col'), 30 | sortable: !colNode.getAttribute('data-nosort'), 31 | type: colNode.getAttribute('data-type') || 'string' 32 | }; 33 | cols.push(col); 34 | if (col.sortable) { 35 | col.defaultDescSort = col.type === 'number'; 36 | colNode.innerHTML = colNode.innerHTML + ''; 37 | } 38 | } 39 | return cols; 40 | } 41 | // attaches a data attribute to every tr element with an object 42 | // of data values keyed by column name 43 | function loadRowData(tableRow) { 44 | var tableCols = tableRow.querySelectorAll('td'), 45 | colNode, 46 | col, 47 | data = {}, 48 | i, 49 | val; 50 | for (i = 0; i < tableCols.length; i += 1) { 51 | colNode = tableCols[i]; 52 | col = cols[i]; 53 | val = colNode.getAttribute('data-value'); 54 | if (col.type === 'number') { 55 | val = Number(val); 56 | } 57 | data[col.key] = val; 58 | } 59 | return data; 60 | } 61 | // loads all row data 62 | function loadData() { 63 | var rows = getTableBody().querySelectorAll('tr'), 64 | i; 65 | 66 | for (i = 0; i < rows.length; i += 1) { 67 | rows[i].data = loadRowData(rows[i]); 68 | } 69 | } 70 | // sorts the table using the data for the ith column 71 | function sortByIndex(index, desc) { 72 | var key = cols[index].key, 73 | sorter = function (a, b) { 74 | a = a.data[key]; 75 | b = b.data[key]; 76 | return a < b ? -1 : a > b ? 1 : 0; 77 | }, 78 | finalSorter = sorter, 79 | tableBody = document.querySelector('.coverage-summary tbody'), 80 | rowNodes = tableBody.querySelectorAll('tr'), 81 | rows = [], 82 | i; 83 | 84 | if (desc) { 85 | finalSorter = function (a, b) { 86 | return -1 * sorter(a, b); 87 | }; 88 | } 89 | 90 | for (i = 0; i < rowNodes.length; i += 1) { 91 | rows.push(rowNodes[i]); 92 | tableBody.removeChild(rowNodes[i]); 93 | } 94 | 95 | rows.sort(finalSorter); 96 | 97 | for (i = 0; i < rows.length; i += 1) { 98 | tableBody.appendChild(rows[i]); 99 | } 100 | } 101 | // removes sort indicators for current column being sorted 102 | function removeSortIndicators() { 103 | var col = getNthColumn(currentSort.index), 104 | cls = col.className; 105 | 106 | cls = cls.replace(/ sorted$/, '').replace(/ sorted-desc$/, ''); 107 | col.className = cls; 108 | } 109 | // adds sort indicators for current column being sorted 110 | function addSortIndicators() { 111 | getNthColumn(currentSort.index).className += currentSort.desc ? ' sorted-desc' : ' sorted'; 112 | } 113 | // adds event listeners for all sorter widgets 114 | function enableUI() { 115 | var i, 116 | el, 117 | ithSorter = function ithSorter(i) { 118 | var col = cols[i]; 119 | 120 | return function () { 121 | var desc = col.defaultDescSort; 122 | 123 | if (currentSort.index === i) { 124 | desc = !currentSort.desc; 125 | } 126 | sortByIndex(i, desc); 127 | removeSortIndicators(); 128 | currentSort.index = i; 129 | currentSort.desc = desc; 130 | addSortIndicators(); 131 | }; 132 | }; 133 | for (i =0 ; i < cols.length; i += 1) { 134 | if (cols[i].sortable) { 135 | // add the click event handler on the th so users 136 | // dont have to click on those tiny arrows 137 | el = getNthColumn(i).querySelector('.sorter').parentElement; 138 | if (el.addEventListener) { 139 | el.addEventListener('click', ithSorter(i)); 140 | } else { 141 | el.attachEvent('onclick', ithSorter(i)); 142 | } 143 | } 144 | } 145 | } 146 | // adds sorting functionality to the UI 147 | return function () { 148 | if (!getTable()) { 149 | return; 150 | } 151 | cols = loadColumns(); 152 | loadData(cols); 153 | addSortIndicators(); 154 | enableUI(); 155 | }; 156 | })(); 157 | 158 | window.addEventListener('load', addSorting); 159 | -------------------------------------------------------------------------------- /coverage/lcov.info: -------------------------------------------------------------------------------- 1 | TN: 2 | SF:/Users/JerryC/Workspace/jc-repository/Memeye/index.js 3 | FNF:0 4 | FNH:0 5 | DA:1,1 6 | LF:1 7 | LH:1 8 | BRF:0 9 | BRH:0 10 | end_of_record 11 | TN: 12 | SF:/Users/JerryC/Workspace/jc-repository/Memeye/src/index.js 13 | FN:14,(anonymous_1) 14 | FNF:1 15 | FNH:1 16 | FNDA:1,(anonymous_1) 17 | DA:8,1 18 | DA:9,1 19 | DA:10,1 20 | DA:11,1 21 | DA:12,1 22 | DA:14,1 23 | DA:15,1 24 | DA:17,1 25 | DA:19,1 26 | DA:21,1 27 | DA:23,1 28 | DA:24,1 29 | DA:27,1 30 | DA:30,1 31 | DA:33,0 32 | DA:34,0 33 | DA:35,0 34 | DA:39,0 35 | DA:40,0 36 | DA:41,0 37 | LF:20 38 | LH:14 39 | BRDA:15,1,0,1 40 | BRDA:15,1,1,0 41 | BRF:2 42 | BRH:1 43 | end_of_record 44 | TN: 45 | SF:/Users/JerryC/Workspace/jc-repository/Memeye/src/lib/Collector.js 46 | FN:10,Collector 47 | FN:16,(anonymous_2) 48 | FN:20,(anonymous_3) 49 | FNF:3 50 | FNH:3 51 | FNDA:2,Collector 52 | FNDA:1,(anonymous_2) 53 | FNDA:3,(anonymous_3) 54 | DA:6,1 55 | DA:7,1 56 | DA:8,1 57 | DA:10,1 58 | DA:11,2 59 | DA:12,2 60 | DA:13,2 61 | DA:16,1 62 | DA:17,1 63 | DA:20,1 64 | DA:21,3 65 | DA:23,3 66 | DA:24,1 67 | DA:25,1 68 | DA:28,2 69 | DA:31,1 70 | DA:32,1 71 | DA:36,1 72 | DA:41,1 73 | DA:57,1 74 | DA:58,1 75 | DA:61,1 76 | DA:62,1 77 | DA:68,1 78 | LF:24 79 | LH:24 80 | BRDA:23,1,0,1 81 | BRDA:23,1,1,2 82 | BRDA:57,2,0,1 83 | BRDA:57,2,1,0 84 | BRDA:61,3,0,1 85 | BRDA:61,3,1,0 86 | BRF:6 87 | BRH:4 88 | end_of_record 89 | TN: 90 | SF:/Users/JerryC/Workspace/jc-repository/Memeye/src/lib/Logger.js 91 | FN:19,Logger 92 | FN:25,(anonymous_2) 93 | FN:31,(anonymous_3) 94 | FN:35,(anonymous_4) 95 | FN:39,(anonymous_5) 96 | FN:43,(anonymous_6) 97 | FNF:6 98 | FNH:4 99 | FNDA:1,Logger 100 | FNDA:2,(anonymous_2) 101 | FNDA:0,(anonymous_3) 102 | FNDA:0,(anonymous_4) 103 | FNDA:2,(anonymous_5) 104 | FNDA:1,(anonymous_6) 105 | DA:1,1 106 | DA:3,1 107 | DA:10,1 108 | DA:17,1 109 | DA:19,1 110 | DA:20,1 111 | DA:21,1 112 | DA:22,1 113 | DA:25,1 114 | DA:26,2 115 | DA:27,2 116 | DA:28,2 117 | DA:31,1 118 | DA:32,0 119 | DA:35,1 120 | DA:36,0 121 | DA:39,1 122 | DA:40,2 123 | DA:43,1 124 | DA:44,1 125 | DA:47,1 126 | LF:21 127 | LH:19 128 | BRDA:26,1,0,0 129 | BRDA:26,1,1,2 130 | BRDA:26,2,0,2 131 | BRDA:26,2,1,1 132 | BRDA:27,3,0,1 133 | BRDA:27,3,1,1 134 | BRDA:32,4,0,0 135 | BRDA:32,4,1,0 136 | BRDA:36,5,0,0 137 | BRDA:36,5,1,0 138 | BRDA:40,6,0,2 139 | BRDA:40,6,1,0 140 | BRDA:44,7,0,1 141 | BRDA:44,7,1,0 142 | BRF:14 143 | BRH:7 144 | end_of_record 145 | TN: 146 | SF:/Users/JerryC/Workspace/jc-repository/Memeye/src/lib/Indicators.js 147 | FN:11,Indicators 148 | FN:26,setWatcher 149 | FN:34,(anonymous_3) 150 | FN:38,(anonymous_4) 151 | FNF:4 152 | FNH:4 153 | FNDA:1,Indicators 154 | FNDA:2,setWatcher 155 | FNDA:2,(anonymous_3) 156 | FNDA:1,(anonymous_4) 157 | DA:7,1 158 | DA:8,1 159 | DA:11,1 160 | DA:12,1 161 | DA:15,1 162 | DA:16,1 163 | DA:19,1 164 | DA:23,1 165 | DA:26,1 166 | DA:27,2 167 | DA:28,2 168 | DA:31,2 169 | DA:32,2 170 | DA:33,2 171 | DA:35,2 172 | DA:36,2 173 | DA:39,1 174 | DA:45,2 175 | DA:48,1 176 | LF:19 177 | LH:19 178 | BRF:0 179 | BRH:0 180 | end_of_record 181 | -------------------------------------------------------------------------------- /example/small-example.js: -------------------------------------------------------------------------------- 1 | const memeye = require('../'); 2 | 3 | memeye({log: 'debug'}); -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | module.exports = require('./src/index.js'); -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "memeye", 3 | "version": "1.0.2", 4 | "description": "A memory monitor and dashboard for Node.js application on development.", 5 | "main": "index.js", 6 | "repository": { 7 | "type": "git", 8 | "url": "https://github.com/JerryC8080/Memeye.git" 9 | }, 10 | "scripts": { 11 | "test": "node_modules/.bin/istanbul cover node_modules/.bin/_mocha -- test/bootstarp.js test/unit/*.test.js" 12 | }, 13 | "keywords": [ 14 | "memory", 15 | "monitor", 16 | "dashboard" 17 | ], 18 | "author": "JerryC (huangjerryc@gmail.com)", 19 | "license": "MIT", 20 | "dependencies": { 21 | "colors": "^1.1.2", 22 | "socket.io": "^1.7.3" 23 | }, 24 | "devDependencies": { 25 | "mocha": "^3.2.0", 26 | "istanbul": "^0.4.5", 27 | "should": "^11.2.0" 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/dashboard/index.js: -------------------------------------------------------------------------------- 1 | /** 2 | * The dashboard , will calling as process way. 3 | * This file will create an Indicator instance and start a http server which provide WebSocket service. 4 | * Then bind indicator with process IPC channel, to recive massage from parent process. 5 | * And then bind the indicator with socketio, to send message while indicator attrbutes changing. 6 | */ 7 | 8 | const Indicator = require('../lib/Indicators'); 9 | const server = require('./server'); 10 | const logger = require('../lib/Logger.js'); 11 | 12 | const port = process.argv[2] || 23333; 13 | let indicator = new Indicator({ 14 | 15 | // process 16 | rss: 'indicators:rss', 17 | heapTotal: 'indicators:heapTotal', 18 | heapUsed: 'indicators:heapUsed', 19 | 20 | // os 21 | freeMem: 'indicators:freeMem', 22 | totalMem: 'indicators:totalMem', 23 | cpus: 'indicators:cpus', 24 | 25 | // v8 heap space 26 | newSpace: 'indicators:newSpace', 27 | oldSpace: 'indicators:oldSpace', 28 | codeSpace: 'indicators:codeSpace', 29 | mapSpace: 'indicators:mapSpace', 30 | largeObjectSpace: 'indicators:largeObjectSpace', 31 | 32 | }); 33 | 34 | // Bind process IPC channel to indicator 35 | function bindIndicators(indicator) { 36 | // Parent process will send three type of data 37 | const collectorHandler = { 38 | 'process': function (value) { 39 | indicator.rss = value.rss; 40 | indicator.heapTotal = value.heapTotal; 41 | indicator.heapUsed = value.heapUsed; 42 | }, 43 | 'os': function (value) { 44 | indicator.totalMem = value.totalMem; 45 | indicator.freeMem = value.freeMem; 46 | indicator.cpus = value.cpus; 47 | }, 48 | 'v8': function (value) { 49 | indicator.newSpace = value.heapSpace[0]; 50 | indicator.oldSpace = value.heapSpace[1]; 51 | indicator.codeSpace = value.heapSpace[2]; 52 | indicator.mapSpace = value.heapSpace[3]; 53 | indicator.largeObjectSpace = value.heapSpace[4]; 54 | } 55 | } 56 | 57 | process.on('message', (msg) => { 58 | if (Array.isArray(msg)) { 59 | msg.forEach((data) => { 60 | let handler = collectorHandler[data.type]; 61 | if (typeof handler === 'function') collectorHandler[data.type](data.value); 62 | }); 63 | } 64 | }); 65 | } 66 | 67 | // Bind indicators to socket 68 | function bindSocket(io, indicator) { 69 | Object.keys(indicator.watch).forEach((key) => { 70 | let eventName = indicator.watch[key]; 71 | indicator.on(eventName, (msg) => io.emit(eventName, msg)); 72 | }); 73 | } 74 | 75 | logger.info('Binding Indicator with Collector by IPC channel...... '); 76 | bindIndicators(indicator); 77 | 78 | logger.info('Binding Indicator with SocketIO...... '); 79 | bindSocket(server.io, indicator); 80 | 81 | // Run dashboard 82 | server.httpServer.listen(port, function () { 83 | logger.info(`Memeye runing on: http://localhost:${port}`); 84 | }); 85 | 86 | -------------------------------------------------------------------------------- /src/dashboard/server.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Server will create a http server which provide a socket.io instance. 3 | * Use io instance, you can send msg to the http client. 4 | */ 5 | 6 | const http = require('http'); 7 | const fs = require('fs'); 8 | const path = require('path'); 9 | const socketio = require('socket.io'); 10 | 11 | const staitcPath = path.join(__dirname, '../../assets'); 12 | 13 | const server = http.createServer(function (req, res) { 14 | let url = req.url; 15 | 16 | switch (url) { 17 | case '/': 18 | res.writeHead(200, { 'Content-Type': 'text/html' }); 19 | getStaticFileStream('/index.html', (err, stream) => { 20 | if (err) { 21 | res.writeHead(404); 22 | return res.end('Not Found!'); 23 | } 24 | stream.pipe(res); 25 | }); 26 | break; 27 | default: 28 | getStaticFileStream(url, (err, stream) => { 29 | if (err) { 30 | res.writeHead(404); 31 | return res.end('Not Found!'); 32 | } 33 | stream.pipe(res); 34 | }); 35 | break; 36 | } 37 | }); 38 | 39 | function getStaticFileStream(url, cb) { 40 | let filePath = path.join(staitcPath, url); 41 | fs.stat(filePath, (err, stats) => { 42 | if (err) return cb(err); 43 | cb(null, fs.createReadStream(filePath)); 44 | }); 45 | } 46 | 47 | const io = socketio(server); 48 | 49 | module.exports = { 50 | io, 51 | httpServer: server, 52 | } 53 | -------------------------------------------------------------------------------- /src/index.js: -------------------------------------------------------------------------------- 1 | /** 2 | * The entry of Memeye. 3 | * This file will create collector for collecting info of this process. 4 | * and run dashboard on new process which has its own memory and v8 instance. 5 | * The dashboard will recive data from collector and dispaly on a local website. 6 | */ 7 | 8 | const path = require('path'); 9 | const child_process = require('child_process'); 10 | const Collector = require('./lib/Collector.js'); 11 | const modulePath = path.join(__dirname, './dashboard'); 12 | const logger = require('./lib/Logger.js'); 13 | 14 | module.exports = function ({ port = 23333, log, frequency } = {}) { 15 | if (log) logger.setLevel(log); 16 | 17 | logger.info('Memeye seting up...... '); 18 | 19 | let dashboardProcess = child_process.fork(modulePath, [port]); 20 | 21 | logger.info('Initializing Collector...... '); 22 | 23 | let collector = new Collector(dashboardProcess, { frequency }); 24 | collector.start(); 25 | 26 | // If Parent process exit, kill child process. 27 | process.on('exit', () => dashboardProcess.kill()); 28 | 29 | // Handle child process's error 30 | dashboardProcess.once('error', (err) => { 31 | 32 | // Kill child process once it occur error. 33 | logger.error(`DashboardProcess occur an error: ${err.toString()}`); 34 | logger.error(`DashboardProcess should be stopping......`); 35 | dashboardProcess.kill(); 36 | }).once('exit', (code, signal) => { 37 | 38 | // Stop collector while child process exit. 39 | logger.error(`DashboardProcess exited by code: ${code}`); 40 | logger.error(`Collector has been stopped.`); 41 | collector.stop(); 42 | }); 43 | } -------------------------------------------------------------------------------- /src/lib/Collector.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Collector will collecting info from process、v8、os， 3 | * and send thiese data to dashboard process with IPC channel. 4 | */ 5 | 6 | const v8 = require('v8'); 7 | const os = require('os'); 8 | const logger = require('./Logger.js'); 9 | 10 | function Collector(dashboard, { frequency = 1000 } = {}) { 11 | this.dashboard = dashboard; 12 | this.interval = null; 13 | this.frequency = frequency; 14 | } 15 | 16 | Collector.prototype.stop = function () { 17 | clearInterval(this.interval); 18 | } 19 | 20 | Collector.prototype.start = function () { 21 | let that = this; 22 | 23 | if (that.interval) { 24 | console.error('Collector has been started'); 25 | return; 26 | } 27 | 28 | that.interval = setInterval(() => { 29 | 30 | // collecing data 31 | let processStat = process.memoryUsage(); 32 | let v8Stat = { 33 | heap: v8.getHeapStatistics(), 34 | heapSpace: v8.getHeapSpaceStatistics(), 35 | } 36 | let osStat = { 37 | freeMem: os.freemem(), 38 | totalMem: os.totalmem(), 39 | cpus: os.cpus(), 40 | } 41 | let data = [ 42 | { 43 | type: 'process', 44 | value: processStat, 45 | }, 46 | { 47 | type: 'v8', 48 | value: v8Stat, 49 | }, 50 | { 51 | type: 'os', 52 | value: osStat 53 | } 54 | ] 55 | 56 | // Sending data to dashboard process with IPC channel if dashboard keep on connected. 57 | if (this.dashboard.connected) { 58 | that.dashboard.send(data); 59 | } 60 | 61 | if (logger.level >= logger.levelMap['debug']) { 62 | logger.debug(`Collector heartbeat, data collected. -- size: ${(new Buffer(JSON.stringify(data))).length}, timestamp: ${Date.now()}`); 63 | } 64 | 65 | }, that.frequency); 66 | } 67 | 68 | module.exports = Collector; 69 | -------------------------------------------------------------------------------- /src/lib/Indicators.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Indicators like a state machine. 3 | * When attribute changed, indicators instance will emit an event. 4 | * You can listen the event then do your logic. 5 | */ 6 | 7 | const events = require('events'); 8 | const util = require('util'); 9 | 10 | // Constructor 11 | function Indicators(indicators) { 12 | events.EventEmitter.call(this); 13 | 14 | // Define watch object. 15 | this.watch = {}; 16 | Object.assign(this.watch, indicators); 17 | 18 | // Set watcher 19 | this.setWatcher.call(this, indicators); 20 | } 21 | 22 | // Inherit EventEmitter Class 23 | util.inherits(Indicators, events.EventEmitter); 24 | 25 | // Set watcher, it aslo support dynamic adding. 26 | Indicators.prototype.setWatcher = function setWatcher(indicators) { 27 | let propDefine = {}; 28 | let that = this; 29 | 30 | // Define setter/getter for indicators 31 | Object.keys(indicators).forEach((key) => { 32 | that.watch[key] = indicators[key]; 33 | propDefine[key] = { 34 | set: function (value) { 35 | this.emit(indicators[key], value); 36 | this['_' + key] = value; 37 | }, 38 | get: function () { 39 | return this['_' + key]; 40 | }, 41 | enumerable: true, 42 | } 43 | }); 44 | 45 | Object.defineProperties(that, propDefine); 46 | } 47 | 48 | module.exports = Indicators; 49 | -------------------------------------------------------------------------------- /src/lib/Logger.js: -------------------------------------------------------------------------------- 1 | const colors = require('colors/safe'); 2 | 3 | colors.setTheme({ 4 | info: 'green', 5 | warn: 'yellow', 6 | debug: 'blue', 7 | error: 'red' 8 | }); 9 | 10 | const levelMap = { 11 | 'error': 0, 12 | 'warn': 1, 13 | 'info': 2, 14 | 'debug': 3, 15 | } 16 | 17 | Object.freeze(levelMap); 18 | 19 | function Logger(level = 2, prefix = '') { 20 | this.setLevel.call(this, level); 21 | this.prefix = prefix; 22 | this.levelMap = levelMap; 23 | } 24 | 25 | Logger.prototype.setLevel = function (level) { 26 | if (typeof level !== 'string' && typeof level !== 'number') level = 2; 27 | if (typeof level === 'string') level = levelMap[level]; 28 | return this.level = level; 29 | } 30 | 31 | Logger.prototype.error = function (msg) { 32 | if (this.level >= levelMap['error']) console.log(this.prefix + colors['error'](msg)) 33 | } 34 | 35 | Logger.prototype.warn = function (msg) { 36 | if (this.level >= levelMap['warn']) console.log(this.prefix + colors['warn'](msg)) 37 | } 38 | 39 | Logger.prototype.info = function (msg) { 40 | if (this.level >= levelMap['info']) console.log(this.prefix + colors['info'](msg)) 41 | } 42 | 43 | Logger.prototype.debug = function (msg) { 44 | if (this.level >= levelMap['debug']) console.log(this.prefix + colors['debug'](msg)) 45 | } 46 | 47 | module.exports = new Logger(2, '[Memeye] '); -------------------------------------------------------------------------------- /test/bootstarp.js: -------------------------------------------------------------------------------- 1 | const memeye = require('../'); 2 | 3 | before(() => { 4 | memeye({log: 'debug'}); 5 | }); -------------------------------------------------------------------------------- /test/unit/Collector.test.js: -------------------------------------------------------------------------------- 1 | const Collector = require('../../src/lib/Collector.js'); 2 | const should = require('should'); 3 | const events = require('events'); 4 | const v8 = require('v8'); 5 | const os = require('os'); 6 | 7 | describe('#Collector', () => { 8 | let frequency = 50; 9 | let dashboard = new events.EventEmitter(); 10 | dashboard.send = (val) => { dashboard.emit('send', val) } 11 | dashboard.connected = true; 12 | 13 | let collector = new Collector(dashboard, { frequency }); 14 | 15 | it('start a collector', (done) => { 16 | let callDone = false; 17 | let indicatorsStructure = { 18 | process: process.memoryUsage(), 19 | v8: { 20 | heap: v8.getHeapStatistics(), 21 | heapSpace: v8.getHeapSpaceStatistics(), 22 | }, 23 | os: { 24 | freeMem: os.freemem(), 25 | totalMem: os.totalmem(), 26 | cpus: os.cpus(), 27 | } 28 | } 29 | 30 | // mutil call start() should be nothing affect; 31 | collector.start(); 32 | collector.start(); 33 | 34 | dashboard.on('send', (val) => { 35 | should(val).is.Array(); 36 | val.forEach((item) => { 37 | let indicators = indicatorsStructure[item.type]; 38 | should(item.value).has.properties(Object.keys(indicators)); 39 | }); 40 | if (!callDone) { 41 | callDone = true; 42 | done(); 43 | } 44 | }); 45 | }); 46 | 47 | it('stop a collector', (done) => { 48 | let callDone = false; 49 | 50 | collector.stop(); 51 | dashboard.on('send', (val) => { 52 | if (!callDone) { 53 | callDone = true; 54 | done('collector have not stop'); 55 | } 56 | }); 57 | 58 | setTimeout(function () { 59 | done(); 60 | }, frequency * 3); 61 | }) 62 | }); -------------------------------------------------------------------------------- /test/unit/Indicators.test.js: -------------------------------------------------------------------------------- 1 | const Indicators = require('../../src/lib/Indicators.js'); 2 | const should = require('should'); 3 | 4 | describe('#Indicators', () => { 5 | let watcher = { key1: 'hi' }; 6 | let watcherAfter = { key2: 'hello' }; 7 | let indicators; 8 | 9 | it('Add watcher while creating indicators', (done) => { 10 | indicators = new Indicators(watcher); 11 | should(indicators.watch).have.properties(watcher); 12 | 13 | indicators.on(indicators.watch.key1, (val) => { 14 | should(val).equal('hello'); 15 | done(); 16 | }); 17 | 18 | indicators.key1 = 'hello'; 19 | 20 | should(indicators.key1).equal('hello'); 21 | }); 22 | 23 | it('Add watcher after indicators created ', (done) => { 24 | indicators.setWatcher(watcherAfter); 25 | should(indicators.watch).have.properties(Object.assign(watcher, watcherAfter)); 26 | 27 | indicators.on(indicators.watch.key2, (val) => { 28 | should(val).equal('hello'); 29 | done(); 30 | }); 31 | 32 | indicators.key2 = 'hello'; 33 | }); 34 | }); 35 | -------------------------------------------------------------------------------- /yarn.lock: -------------------------------------------------------------------------------- 1 | # THIS IS AN AUTOGENERATED FILE. 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resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1" 101 | dependencies: 102 | center-align "^0.1.1" 103 | right-align "^0.1.1" 104 | wordwrap "0.0.2" 105 | 106 | commander@2.9.0: 107 | version "2.9.0" 108 | resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4" 109 | dependencies: 110 | graceful-readlink ">= 1.0.0" 111 | 112 | component-bind@1.0.0: 113 | version "1.0.0" 114 | resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1" 115 | 116 | component-emitter@1.1.2: 117 | version "1.1.2" 118 | resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.1.2.tgz#296594f2753daa63996d2af08d15a95116c9aec3" 119 | 120 | component-emitter@1.2.1: 121 | version "1.2.1" 122 | resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6" 123 | 124 | component-inherit@0.0.3: 125 | version "0.0.3" 126 | resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143" 127 | 128 | concat-map@0.0.1: 129 | version "0.0.1" 130 | resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b" 131 | 132 | cookie@0.3.1: 133 | version "0.3.1" 134 | resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb" 135 | 136 | debug@2.2.0: 137 | version "2.2.0" 138 | resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da" 139 | dependencies: 140 | ms "0.7.1" 141 | 142 | debug@2.3.3: 143 | version "2.3.3" 144 | resolved "https://registry.yarnpkg.com/debug/-/debug-2.3.3.tgz#40c453e67e6e13c901ddec317af8986cda9eff8c" 145 | dependencies: 146 | ms "0.7.2" 147 | 148 | decamelize@^1.0.0: 149 | version "1.2.0" 150 | resolved 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resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-1.3.2.tgz#937b079f0007d0893ec56d46cb220b8cb435220a" 180 | dependencies: 181 | after "0.8.2" 182 | arraybuffer.slice "0.0.6" 183 | base64-arraybuffer "0.1.5" 184 | blob "0.0.4" 185 | has-binary "0.1.7" 186 | wtf-8 "1.0.0" 187 | 188 | engine.io@1.8.3: 189 | version "1.8.3" 190 | resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-1.8.3.tgz#8de7f97895d20d39b85f88eeee777b2bd42b13d4" 191 | dependencies: 192 | accepts "1.3.3" 193 | base64id "1.0.0" 194 | cookie "0.3.1" 195 | debug "2.3.3" 196 | engine.io-parser "1.3.2" 197 | ws "1.1.2" 198 | 199 | escape-string-regexp@1.0.5: 200 | version "1.0.5" 201 | resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4" 202 | 203 | escodegen@1.8.x: 204 | version "1.8.1" 205 | resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018" 206 | dependencies: 207 | esprima "^2.7.1" 208 | estraverse "^1.9.1" 209 | esutils "^2.0.2" 210 | optionator "^0.8.1" 211 | optionalDependencies: 212 | source-map "~0.2.0" 213 | 214 | esprima@2.7.x, esprima@^2.7.1: 215 | version "2.7.3" 216 | resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581" 217 | 218 | esprima@^3.1.1: 219 | version "3.1.3" 220 | resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633" 221 | 222 | estraverse@^1.9.1: 223 | version "1.9.3" 224 | resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44" 225 | 226 | esutils@^2.0.2: 227 | version "2.0.2" 228 | resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b" 229 | 230 | fast-levenshtein@~2.0.4: 231 | version "2.0.6" 232 | resolved 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has-flag@^1.0.0: 288 | version "1.0.0" 289 | resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa" 290 | 291 | indexof@0.0.1: 292 | version "0.0.1" 293 | resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d" 294 | 295 | inflight@^1.0.4: 296 | version "1.0.6" 297 | resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9" 298 | dependencies: 299 | once "^1.3.0" 300 | wrappy "1" 301 | 302 | inherits@2: 303 | version "2.0.3" 304 | resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de" 305 | 306 | is-buffer@^1.0.2: 307 | version "1.1.4" 308 | resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.4.tgz#cfc86ccd5dc5a52fa80489111c6920c457e2d98b" 309 | 310 | isarray@0.0.1: 311 | version "0.0.1" 312 | resolved 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source-map "~0.5.1" 675 | uglify-to-browserify "~1.0.0" 676 | yargs "~3.10.0" 677 | 678 | uglify-to-browserify@~1.0.0: 679 | version "1.0.2" 680 | resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7" 681 | 682 | ultron@1.0.x: 683 | version "1.0.2" 684 | resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.0.2.tgz#ace116ab557cd197386a4e88f4685378c8b2e4fa" 685 | 686 | which@^1.1.1: 687 | version "1.2.12" 688 | resolved "https://registry.yarnpkg.com/which/-/which-1.2.12.tgz#de67b5e450269f194909ef23ece4ebe416fa1192" 689 | dependencies: 690 | isexe "^1.1.1" 691 | 692 | window-size@0.1.0: 693 | version "0.1.0" 694 | resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d" 695 | 696 | wordwrap@0.0.2: 697 | version "0.0.2" 698 | resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f" 699 | 700 | wordwrap@^1.0.0, wordwrap@~1.0.0: 701 | version "1.0.0" 702 | resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb" 703 | 704 | wordwrap@~0.0.2: 705 | version "0.0.3" 706 | resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107" 707 | 708 | wrappy@1: 709 | version "1.0.2" 710 | resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f" 711 | 712 | ws@1.1.2: 713 | version "1.1.2" 714 | resolved "https://registry.yarnpkg.com/ws/-/ws-1.1.2.tgz#8a244fa052401e08c9886cf44a85189e1fd4067f" 715 | dependencies: 716 | options ">=0.0.5" 717 | ultron "1.0.x" 718 | 719 | wtf-8@1.0.0: 720 | version "1.0.0" 721 | resolved "https://registry.yarnpkg.com/wtf-8/-/wtf-8-1.0.0.tgz#392d8ba2d0f1c34d1ee2d630f15d0efb68e1048a" 722 | 723 | xmlhttprequest-ssl@1.5.3: 724 | version "1.5.3" 725 | resolved 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