DIY Synthetic: Private WebPagetest Magic
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Transcript of DIY Synthetic: Private WebPagetest Magic
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DIY Synthetic: Private WebPagetest MagicVelocity NY 2013Jonathan Klein@jonathanklein
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Slides, Linksjkle.in/wpt
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About Me
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About Me•Performance Engineer At Etsy
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About Me•Performance Engineer At Etsy• I write the Etsy Site Performance Reports
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About Me•Performance Engineer At Etsy• I write the Etsy Site Performance Reports•Organize Boston Web Perf Meetup Group
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Etsy Stats
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Etsy Stats•World’s largest handmade marketplace
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Etsy Stats•World’s largest handmade marketplace• 1.5 billion page views/month
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Etsy Stats•World’s largest handmade marketplace• 1.5 billion page views/month•Almost $1B in sales last year
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+160k to a page = +12% bounce rate
on mobile
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Synthetic Monitoring
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Synthetic Monitoring Real User Monitoring
Browser Instrumentation Navigation Timing API
Consistent trending over time
Highly variable
Largely in your control Last mile difficulties
Great for identifying regressions
Great for comparing across geographies/browsers
Not super realistic “Real User Monitoring”
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Synthetic Monitoring Real User Monitoring
Browser Instrumentation Navigation Timing API
Consistent trending over time
Highly variable
Largely in your control Last mile difficulties
Great for identifying regressions
Great for comparing across geographies/browsers
Not super realistic “Real User Monitoring”
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Synthetic Monitoring Real User Monitoring
Browser Instrumentation Navigation Timing API
Consistent trending over time
Highly variable
Largely in your control Last mile difficulties
Great for identifying regressions
Great for comparing across geographies/browsers
Not super realistic “Real User Monitoring”
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Synthetic Monitoring Real User Monitoring
Browser Instrumentation Navigation Timing API
Consistent trending over time
Highly variable
Largely in your control Last mile difficulties
Great for identifying regressions
Great for comparing across geographies/browsers
Not super realistic “Real User Monitoring”
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Synthetic Monitoring Real User Monitoring
Browser Instrumentation Navigation Timing API
Consistent trending over time
Highly variable
Largely in your control Last mile difficulties
Great for identifying regressions
Great for comparing across geographies/browsers
Not super realistic “Real User Monitoring”
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Synthetic Monitoring Real User Monitoring
Browser Instrumentation Navigation Timing API
Consistent trending over time
Highly variable
Largely in your control Last mile difficulties
Great for identifying regressions
Great for comparing across geographies/browsers
Not super realistic “Real User Monitoring”
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$$$$
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Background
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EC2 Test Agents
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No Built-in Automation
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wpt-script
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Motivation
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Why We Use It
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Why We Use It•Wanted long term synthetic trending
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Why We Use It•Wanted long term synthetic trending• Automated tests
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Why We Use It•Wanted long term synthetic trending• Automated tests•More control
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Why We Use It•Wanted long term synthetic trending• Automated tests•More control• Low cost
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Easy Configuration
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{ "server": "http://www.yourwptinstall.com", "pending_dir": "private", "locations": ["US_East_wptdriver:Firefox", "US_East_wptdriver:Chrome"], "urls": { "label": "http://www.example.com", "other_label": "http://www.anotherexample.com" }, "graphite": "graphite.example.com", "logging_ns": "webpagetest.private", "splunkLog": "/var/log/webpagetest/results.log"}
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{ "server": "http://www.yourwptinstall.com", "pending_dir": "private", "locations": ["US_East_wptdriver:Firefox", "US_East_wptdriver:Chrome"], "urls": { "label": "http://www.example.com", "other_label": "http://www.anotherexample.com" }, "graphite": "graphite.example.com", "logging_ns": "webpagetest.private", "splunkLog": "/var/log/webpagetest/results.log"}
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{ "server": "http://www.yourwptinstall.com", "pending_dir": "private", "locations": ["US_East_wptdriver:Firefox", "US_East_wptdriver:Chrome"], "urls": { "label": "http://www.example.com", "other_label": "http://www.anotherexample.com" }, "graphite": "graphite.example.com", "logging_ns": "webpagetest.private", "splunkLog": "/var/log/webpagetest/results.log"}
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{ "server": "http://www.yourwptinstall.com", "pending_dir": "private", "locations": ["US_East_wptdriver:Firefox", "US_East_wptdriver:Chrome"], "urls": { "label": "http://www.example.com", "other_label": "http://www.anotherexample.com" }, "graphite": "graphite.example.com", "logging_ns": "webpagetest.private", "splunkLog": "/var/log/webpagetest/results.log"}
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{ "server": "http://www.yourwptinstall.com", "pending_dir": "private", "locations": ["US_East_wptdriver:Firefox", "US_East_wptdriver:Chrome"], "urls": { "label": "http://www.example.com", "other_label": "http://www.anotherexample.com" }, "graphite": "graphite.example.com", "logging_ns": "webpagetest.private", "splunkLog": "/var/log/webpagetest/results.log"}
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# Run Test*/25 * * * * php run.php
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# Run Test*/25 * * * * php run.php -c foo.conf
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# Run Test*/25 * * * * php run.php -c foo.conf
# Get Results* * * * * php get_results.php
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Advanced Features
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{ "server": "http://example.com", "pending_dir": "private", "locations": ["US_East_wptdriver:Firefox", "US_East_wptdriver:Chrome"], "urls": { "label": "http://www.example.com", "other_label": "http://www.webpagetest.org" }, "graphite": "graphite.example.com", "logging_ns": "webpagetest.private", "splunkLog": "/var/log/webpagetest/results.log", "prepend": "Login", "username": "someuser", "password": "somepassword", "run_options": { "video": 0 }}
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{ "server": "http://example.com", "pending_dir": "private", "locations": ["US_East_wptdriver:Firefox", "US_East_wptdriver:Chrome"], "urls": { "label": "http://www.example.com", "other_label": "http://www.webpagetest.org" }, "graphite": "graphite.example.com", "logging_ns": "webpagetest.private", "splunkLog": "/var/log/webpagetest/results.log", "prepend": ["BlockThirdParty", "bypass_cdn.txt"], "run_options": { "video": 0 }}
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foreach ($prepends as $prepend) { if (file_exists($scripts_dir . $prepend)) { $script .= file_get_contents($scripts_dir . $prepend); } elseif (method_exists($this, $prepend)) { $script .= $this->$prepend(); }}
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setDns site.etsystatic.com 38.106.64.123setDns img0.etsystatic.com 38.106.64.125setDns img1.etsystatic.com 38.106.64.125setDns img2.etsystatic.com 38.106.64.125setDns img3.etsystatic.com 38.106.64.125setDns ny-image0.etsy.com 38.106.64.125setDns ny-image1.etsy.com 38.106.64.125setDns ny-image2.etsy.com 38.106.64.125setDns ny-image3.etsy.com 38.106.64.125
bypass_cdn.txt
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Gathering Results
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<?php
// Splunk$splunkLogger = new SplunkLogger($config['splunkLog'], $logging_ns);foreach ($results as $result) { $splunkLogger->log($result);}
// Graphite$grapher = new Grapher($config['graphite'], $logging_ns);$grapher->graphResults($results);
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https://sites.google.com/a/webpagetest.org/docs/using-webpagetest/metricsWednesday, October 16, 13
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Disadvantages vs. Paid Tools
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Disadvantages vs. Paid Tools•Harder to set up/maintain
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Disadvantages vs. Paid Tools•Harder to set up/maintain• Functionality
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Disadvantages vs. Paid Tools•Harder to set up/maintain• Functionality•Regions
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Disadvantages vs. Paid Tools•Harder to set up/maintain• Functionality•Regions• Full page oriented
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Disadvantages vs. Paid Tools•Harder to set up/maintain• Functionality•Regions• Full page oriented• Less consistent
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Advantages vs. Paid Tools
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Advantages vs. Paid Tools•Cost
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Advantages vs. Paid Tools•Cost• Flexibility
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Advantages vs. Paid Tools•Cost• Flexibility•People know the tool
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Advantages vs. Paid Tools•Cost• Flexibility•People know the tool•Multi-page flows
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Advantages vs. Paid Tools•Cost• Flexibility•People know the tool•Multi-page flows• Scripting
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Our Use Cases
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WebPagetest Catchpoint
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WebPagetest Catchpoint•Multi-page flows
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WebPagetest Catchpoint•Multi-page flows• Scripted tests
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WebPagetest Catchpoint•Multi-page flows• Scripted tests• High volume testing
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WebPagetest Catchpoint•Multi-page flows• Scripted tests• High volume testing• Ad-hoc tests
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WebPagetest Catchpoint•Multi-page flows• Scripted tests• High volume testing• Ad-hoc tests
• DNS
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WebPagetest Catchpoint•Multi-page flows• Scripted tests• High volume testing• Ad-hoc tests
• DNS• API
Wednesday, October 16, 13
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WebPagetest Catchpoint•Multi-page flows• Scripted tests• High volume testing• Ad-hoc tests
• DNS• API• Single Object Tests
Wednesday, October 16, 13
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WebPagetest Catchpoint•Multi-page flows• Scripted tests• High volume testing• Ad-hoc tests
• DNS• API• Single Object Tests•Multiple locations
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WebPagetest Catchpoint•Multi-page flows• Scripted tests• High volume testing• Ad-hoc tests
• DNS• API• Single Object Tests•Multiple locations• Comparisons
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Future Work
Wednesday, October 16, 13
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Improving the Process
Wednesday, October 16, 13
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Improving the Process•Manage disk space
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Improving the Process•Manage disk space•Multiple regions
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Improving the Process•Manage disk space•Multiple regions•More canned scripts
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Improving the Process•Manage disk space•Multiple regions•More canned scripts•Automate upgrades
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Leveraging WebPagetest
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Leveraging WebPagetest• Front-end SPOF
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Leveraging WebPagetest• Front-end SPOF•User Timings (AFT)
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Leveraging WebPagetest• Front-end SPOF•User Timings (AFT)• Speed Index
Wednesday, October 16, 13
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Wednesday, October 16, 13
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Improving WebPagetest
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WebPagetest + Vagrant
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WebPagetest + Vagrant• Install VirtualBox
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WebPagetest + Vagrant• Install VirtualBox• Install Vagrant
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WebPagetest + Vagrant• Install VirtualBox• Install Vagrant• https://gist.github.com/jklein/6992296
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WebPagetest + Vagrant• Install VirtualBox• Install Vagrant• https://gist.github.com/jklein/6992296•vagrant up
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WebPagetest + Vagrant• Install VirtualBox• Install Vagrant• https://gist.github.com/jklein/6992296•vagrant up
• http://localhost:8080
Wednesday, October 16, 13
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Wednesday, October 16, 13
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800MB
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webpagetest-api
Wednesday, October 16, 13
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Wednesday, October 16, 13
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Both Are Good Options
Wednesday, October 16, 13
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Results > Tools
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Thanks!
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@jonathanklein
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Get in Touch
Wednesday, October 16, 13