Fluent 2015 Automate Front-end Performance

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Automate Your Site's Front-End
Performance Kitt Hodsden / @kitt slides here

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 2 You.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 3 Me.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 4

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 5 Performance is everyone’s
problem.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 6 “What does FAST
even mean?”

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 7 Determine key metrics

Establish a baseline

Establish a baseline Make a change

Establish a baseline Make a change Measure effects

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 13 40% will abandon
a website that takes more than 3 seconds to load.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 14 https://blog.kissmetrics.com/loading-time/ Not quite

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 15 https://blog.kissmetrics.com/loading-time/ Not quite

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 16 Performance Budget

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 17 http://timkadlec.com/2013/01/setting-a-performance-budget/ http://timkadlec.com/2014/11/performance-budget-metrics/ http://danielmall.com/articles/how-to-make-a-performance-budget/

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 20 https://speakerdeck.com/lara/designing-for-performance?slide=69

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 22 Establish a baseline

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 23 How fast is
our site?

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 24 https://www.flickr.com/photos/28277470@N05/8613726003

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 25 No.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 26 The simplest way?

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 27 Your browser

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 28 Firefox

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 29 Safari

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 30 IE

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 31 Chrome

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 32 Chrome

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 33 https://developer.chrome.com/devtools/docs/network#resource-network-timing

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 But… but… 36

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 My network! 37

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 My browsers! 38

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Automation! 39

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 41 http://nodejs.org/

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm 42 Node Package
Manager for installing node packages

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install -g grunt-cli
44

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 45 package.json Gruntfile.js The
two ﬁles grunt uses

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Just download them. https://github.com/search?q=Gruntfile.js
https://github.com/kitt/grunt-perf-template 46

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 47 { "engines": {
"node": ">= 0.12.0" }, "devDependencies": { "grunt": "~0.4.2", "grunt-contrib-jshint": "~0.7.2", "grunt-contrib-watch": "~0.5.3", } } This is what a package.json ﬁle looks like

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 48 { "engines": {
"node": ">= 0.12.0" }, "devDependencies": { "grunt": "~0.4.2", "grunt-contrib-jshint": "~0.7.2", "grunt-contrib-watch": "~0.5.3", } } This is what a package.json ﬁle looks like

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 49 $ npm install
With a package.json file, you can install the needed packages easily.

No -g here! With a package.json file, you can install the needed packages easily.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 51 $ ls Gemfile
README.txt fonts node_modules tpl Gemfile.lock config.rb img package.json widgets Gruntfile.js css js scss

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Check dependencies into the
repo? http://addyosmani.com/blog/checking-in-front-end-dependencies/ http://redotheweb.com/2013/09/12/should-you-commit-dependencies.html 52 Total sidebar on checking dependencies into the repo or not

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 53 module.exports = function(grunt)
{ // Project configuration. grunt.initConfig({ pkg: grunt.file.readJSON('package.json'), uglify: { options: { banner: '/*! <%= pkg.name %> <%="yyyy-mm-dd") %> */\n' }, build: { src: 'src/<%= pkg.name %>.js', dest: 'build/<%= pkg.name %>.min.js' } } }); // Load the plugin that provides the "uglify" task. grunt.loadNpmTasks('grunt-contrib-uglify'); // Default task(s). grunt.registerTask('default', ['uglify']); };

{ // Project configuration. grunt.initConfig({ pkg: grunt.file.readJSON('package.json'), uglify: { options: { banner: '/*! <%= pkg.name %> <%="yyyy-mm-dd") %> */\n' }, build: { src: 'src/<%= pkg.name %>.js', dest: 'build/<%= pkg.name %>.min.js' } } }); // Load the plugin that provides the "uglify" task. grunt.loadNpmTasks('grunt-contrib-uglify'); // Default task(s). grunt.registerTask('default', ['uglify']); }; A basic Gruntﬁle.js ﬁle

matchdep --save-dev

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 58 ... // load
all the grunt modules instead of one each line require("matchdep").filterDev("grunt-*").forEach(grunt.loadNpmTasks); grunt.registerTask('checkjs', ['jshint']); grunt.registerTask('watchjs', ['jshint', 'watch']); grunt.registerTask('gruntjs', ['jshint:gruntfile', 'watch']);

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-devperf --save-dev
60

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 61 https://github.com/macbre/phantomas

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 62 devperf: { options:
{ urls: [ 'http://localhost:8000' ] } } … grunt.registerTask('pe', ['devperf']);

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 64 … devperf: {
options: { urls: [ 'http://fromthemiddle.io/' ], numberOfRuns: 5, openResults: true, resultsFolder: './devperf', phantomasOptions: { 'film-strip': true } } } … grunt.registerTask('pe', ['devperf']);

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 71 http://fluentconf.com/javascript-html-2015/public/schedule/grid/public

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Remove HTML Comments? 72
https://github.com/gruntjs/grunt-contrib-htmlmin

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-contrib-htmlmin —save-dev
73 https://github.com/gruntjs/grunt-contrib-htmlmin

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 74 … htmlmin: {
dist: { options: { removeComments: true, collapseWhitespace: true }, files: { 'dist/index.html': 'src/index.html', 'dist/contact.html': 'src/contact.html' } }, dev: { files: { 'dist/index.html': 'src/index.html', 'dist/contact.html': 'src/contact.html' } } } … grunt.registerTask(‘comments-be-gone‘, ['htmlmin']);

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Concatenate and Minify CSS
files? 75

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-contrib-cssmin --save-dev
76 Minimize CSS ﬁles

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Remove duplicate CSS? 77

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-csscss --save-dev
78 Report duplicate CSS in ﬁles

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Remove unused CSS? 79

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-uncss --save-dev
80 Remove unused CSS

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-cssstats --save-dev
81 https://github.com/cssstats/grunt-cssstats Look at the site’s CSS statistics

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 82 https://github.com/cssstats/cssstats

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 88 grunt-cssstats configuration https://github.com/cssstats/grunt-cssstats
cssstats: { dev: { options: {}, files: { 'stats/css-stats.json': ['css/example.css'] }, } } … grunt.registerTask('stats', ['cssstats']);

cssstats: { dev: { options: { safe: false }, // Barf on invalid CSS files: { 'stats/cssstats-dev.json': ['app/styles/main.css'] } }, prod: { files: { 'stats/cssstats.json': ['dist/styles.css'] } } }

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 https://github.com/cssstats/cssstats 91

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Aggregate and Minify JavaScript?
92

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-contrib-uglify --save-dev
93 Minimize javascript ﬁles

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Too many small images?
94 Making things easier with sprites!

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-montage --save-dev
95 Making things easier with sprites!

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 96 grunt.initConfig({ montage: {
iconaroo: { files: { "images/sprites": [ "images/icons/*.png" ] }, options: { size: 32, outputImage: "sprite-icons.png", outputStylesheet: "sprite-icons.css" } } } }); Sample grunt-montage conﬁguration

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-contrib-imagemin --save-dev
97 Make pages load faster by reducing image sizes

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 98 imagemin: { prod:
{ files: [{ expand: true, cwd: 'imgs-src/', src: ['**/*.{png,jpg,gif}'], dest: 'imgs/' }] } }

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-svgmin --save-dev
99 Reduce SVG sizes, too

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 100 grunt.initConfig({ svgmin: {
// Task options: { // Configuration that will be passed directly to SVGO plugins: [ { removeViewBox: false }, { removeUselessStrokeAndFill: false } ] }, dist: { // Target files: [{ // Dictionary of files expand: true, // Enable dynamic expansion. cwd: 'img/src', // Src matches are relative to this path. src: ['**/*.svg'], // Actual pattern(s) to match. dest: 'img/', // Destination path prefix. ext: '.min.svg' // Dest filepaths will have this extension. // ie: optimise img/src/branding/logo.svg and store it in img/branding/logo.min.svg }] } }); grunt.loadNpmTasks('grunt-svgmin'); grunt.registerTask('default', ['svgmin']); Sample grunt-svgmin configuration

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-responsive-images --save-dev
102 Responsive images by resizing https://github.com/andismith/grunt-responsive-images

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 103 grunt.initConfig({ responsive_images: {
myTask: { options: { sizes: [{ width: 320, height: 240 },{ name: 'large', width: 640 },{ name: "large", width: 1024, suffix: "_x2", quality: 60 }] }, files: [{ expand: true, src: ['assets/**.{jpg,gif,png}'], cwd: 'test/', dest: 'resize/{%= width %}/' }] } }, }); Sample grunt-responsive-images conﬁguration

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-grunticon --save-dev
104 SVG with PNG fallbacks https://github.com/ﬁlamentgroup/grunticon

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Wait… again… 105

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Dependent on my network?
106

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Yep. 107

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 How about not? 108

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 111 http://www.webpagetest.org/getkey.php Request an
API key.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 113 http://www.webpagetest.org/getkey.php Limits of
public use The API key is provisioned for up to 200 page loads per day … sufficient for most low-volume use cases and for building a proof-of- concept for larger testing

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 114 Need more?

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 115 https://sites.google.com/a/webpagetest.org/docs/private-instances Set up
your own WebPageTest server.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-perfbudget --save-dev
116 https://github.com/tkadlec/grunt-perfbudget

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 117 perfbudget: { default:
{ options: { url: ‘http://example.io/', key: 'PUT_YOUR_API_KEY_HERE' } } } … grunt.registerTask('budg', ['perfbudget']);

{ options: { url: 'http://fromthemiddle.io/', key: 'thisismykey', wptInstance: 'ec2.us-west-2.amazonaws.com', location: 'us-west-2_wptdriver', pollResults: 10, connectivity: '3G', runs: 1, timeout: 240 } } }

{ options: { url: 'http://fromthemiddle.io/', … connectivity: '3G', timeout: 240, budget: { render: '3000', SpeedIndex: '7500', visualComplete: '6000' } } } }

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Now what? 125

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Integrate into CI builds
126

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Tracking over time 128

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Tracking over time 129
http://www.wptmonitor.org/home

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-wpt --save-dev
130 https://github.com/sideroad/grunt-wpt https://github.com/sideroad/grunt-wpt-page

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 131 wpt: { options:
{ url: 'http://fromthemiddle.io/', server: 'ec2.us-west-2.amazonaws.com', dest: 'wpt/' }, ftm: { options: { server: 'http://ec2.us-west-2.amazonaws.com', url: ['http://fromthemiddle.io/'] }, dest: 'wpt/', } } … grunt.registerTask('wptrun', ['wpt']);

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 133 https://github.com/trulia/webpagetest-charts-ui https://github.com/trulia/webpagetest-charts-api

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 npm install grunt-shell --save-dev
134 Installing the grunt shell package to get to everything else

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 135 function log(err, stdout,
stderr, cb) { console.log(stdout); cb(); } grunt.initConfig({ shell: { dirListing: { command: 'ls', options: { callback: log } } } });

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 136 Make a change
Measure effects

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Worth looking at: https://github.com/andyshora/grunt-yslow
https://github.com/jrcryer/grunt-pagespeed https://github.com/addyosmani/psi/ http://www.sitespeed.io/ 137

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Questions? 138

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 139 Wait a second…

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 141 https://sites.google.com/a/webpagetest.org/docs/private-instances Set up
your own WebPageTest server.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 165 $ ssh -i
downloaded.pem ubuntu@ec2

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 166 $ vi ~/.ssh/authorized_keys

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 167 sudo vi /var/www/webpage/test/www/settings/settings.ini
# update host with ec2 hostname # add ec2_key value (optional) # add ec2_secret value (optional) # uncomment EC2.us-west-2.securityGroup line # uncomment EC2.us-west-2.subnetId line #

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 168 sudo vi /var/www/webpage/test/www/settings/keys.ini
[server] secret=addarandomstringhere key=addakeyhere [addakeyhere] description=Web UI ;contact=me@me.com limit=0 [thisisyourapikey] description=API Key ;contact=me@me.com limit=0

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 169 $ cd /var/www/webpage/test/www/settings/
$ sudo cp locations.ini.EC2-sample locations.ini

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 170 $ sudo service
nginx restart

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 171 Set up testing
instances

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 172 EC2 server key
in settings.ini

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 173 OR

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 175 wpt_server=ec2.us-west-2.amazonaws.com wpt_key=YOURKEY wpt_location=us-west-2

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 176 Wait.

Kitt Hodsden • @kitt • http://ki.tt/fluent2015 Thanks! Kitt Hodsden http://ki.tt/
@kitt 179

Fluent 2015 Automate Front-end Performance

Fluent 2015 Automate Front-end Performance

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