~/conference

Velocity 2010

date:2010-06-22..2010-06-24
location:Santa Clara, United States
series:Velocity · 7 editions

site reliability engineers, operations engineers, devops engineers, infrastructure architects, performance engineers, frontend developers, web developers, mobile web developers

massive CSS optimization; HipHop for PHP; BitTorrent deployments; memcache at scale; hot-aisle containment cooling; OpenFlow and commodity switching; spot instances and cloud pricing; SPDY and header compression; browser performance tooling; third-party widget isolation; mobile device testing matrix; Cassandra and column stores

titleauthorlength
"The Top 5 Mistakes of Massive CSS"Nicole Sullivan38m
A study of the Alexa top 1000 loads each site with a Fiddler script and finds 42% of sites send uncompressed CSS, 44% serve more than two CSS files, 56% send…
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"A Day in the Life of Facebook Operations"Tom Cook41m
Facebook describes specifics: HipHop for PHP compiles PHP to C++ and cuts web CPU by about 50%, the front end pushes a few-hundred‑MB release via BitTorrent in…
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"Datacenter Infrastructure Innovation"James Hamilton29m
Claims that power is the top cost are wrong: using a 5% amortization and zero residual shows fully burdened power is #2 while servers (54% of monthly cost)…
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"O'Reilly Radar"Tim O'Reilly30m
Argues that competitive advantage comes from massive data plus algorithms, citing data is the Intel inside and the rise of sensor-fed apps (millions of UK…
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Velocity 2010: Urs HolzleUrs Holzle27m
Average page load time is 4.9 seconds for a 320 KB page on a 1.8 Mbps line while many sites make 44 resource requests and perform seven DNS lookups, so the…
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"Lightning Demos"Andreas Grabner, John J. Barton, Stoyan Stefanov, Bryan McQuade27m
Demos show concrete tools and results: dynaTrace AJAX Edition 2.0 beta captures rendering, JS execution and server pure‑paths and finds a 2.4s class lookup and…
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"Don't Let Third Parties Slow You Down"Michael Kleber, Arvind Jain13m
An experiment measures third-party widget cost and delivers a concrete fix: replace the heavy ad script with a tiny loader script that uses document.write into…
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"From Browsers to Mobile Devices: ..."Vik Chaudhary15m
A downloadable tool called M 2.0 (Keynote might) claims to automate mobile web testing and monitoring: it emulates 1,600 devices and sends 11,000 user agent…
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Nicole Sullivan interviewed at Velocity 2010Nicole Sullivan04m
Claims that CSS bloat comes from wrong granularity and styles that are location-dependent, with concrete examples of objects exploding when moved; recommends a…
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Bret Piatt interviewed at Velocity 2010Bret Piatt05m
Cassandra forgoes a fixed relational schema in favor of columns and column families, returning slices of rows that applications must stitch together rather…
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Nick Gerner interviewed at Velocity 2010Nick Gerner05m
Open-source and low-cost monitoring tools exist but many fail at handling dynamic nodes as cloud instances appear and disappear; provider offerings vary widely…
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Simon Frost interviewed at Velocity 2010Simon Frost07m
Technical architect on BBC iPlayer explains bandwidth and latency as the real constraints, claims video traffic will surpass peer‑to‑peer this year, and…
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Tom Hughes-Croucher interviewed at Velocity 2010Tom Hughes-Croucher10m
A practical diagram of how HTTP DNS browsers hardware and home Wi‑Fi interact leads to concrete fixes: turn on Gzipping (a five‑minute win still missing on…
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Nicholas Zakas interviewed at Velocity 2010Nicholas Zakas06m
Yahoo homepage is rebuilt in 2009 into a highly interactive, configurable page with applications (Facebook feed, finance widgets), user-added favorite sites…
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"Welcome"Steve Souders, Jesse Robbins07m
Conference logistics and numbers: over a thousand attendees and a second room opened because attendance exceeds the first two years combined. Sponsors include…
Organiser
"Performance Impact, Part Two: More Findings from the Front Lines..."Joshua Bixby38m
Strangeloop deploys a proxy/appliance that inserts a segmentation cookie, rewrites HTML, optimizes caching, payload, images, rendering and CDN links, and runs…
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"Psychology of Performance"Stoyan Stefanov37m
Argues that perception, not clock time, decides perceived speed and gives actionable numbers: 0.1s instantaneous, 1s keeps flow, 10s loses attention, and a…
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Robert Johnson interviewed at Velocity 2010Robert Johnson07m
Facebook cuts page load roughly in half and explains how: site two times faster comes from pipelining independent UI sections with BigPipe pagelets—server…
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Ismail Elshareef interviewed at Velocity 2010Ismail Elshareef04m
Explains why third-party ads slow pages: each ad pulls 8 to 12 assets, causing network latency and unpredictable downstream failures; iframes can be…
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Joshua Bixby interviewed at Velocity 2010Joshua Bixby07m
Mobile lacks public longitudinal data so benchmarks are premature, but user‑view metrics must be collected first using real‑user measurements rather than lab…
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"Change Management: A Scientific Classification"Andrew Clay Shafer35m
Classifies change management into a spectrum: manual live edits, heavy approval/sign-off, ITIL-style process, scripted automation, and full infrastructure as…
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"The Upside of Downtime: How to Turn a Disaster Into an Opportunity"Lenny Rachitsky34m
Downtime is inevitable but becomes an advantage when treated as communications first and engineering second: build an externally hosted public health…
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"Welcome"Steve Souders, Jesse Robbins05m
Opening logistics and announcements cover sponsors, exhibit activity, and attendee services: a long sponsor list is read aloud and the gold sponsors: D…
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"Removing the Human SPOF"Justin Huff, Tim Wilfong40m
Browser photo editor picnic runs a Flash front end on a LAMP back end with cloud overflow, millions of monthly users, and heavy automation; one operator…
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"Creating Cultural Change"John Rauser17m
Argues that technical fixes often fail because real barriers are cultural, and gives concrete wins: a humor poster coffee campaign at Amazon keeps the office…
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"In the Belly of the Whale: Operations at Twitter"John Adams23m
Operations at Twitter explains why the site handles ~65 million tweets per day and peaks near 3,000 tweets/sec by rebuilding the social graph, sharding with…
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"Time is Money - The Measurable Value of Performance by Design"Tim Morrow11m
Shopzilla measures front-end performance with Keynote, HTTPWatch and IE7 browsers proxied through NetEm, inspects Tomcat 8KB flush behavior, and builds nightly…
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"Performance Testing: ..."Imad Mouline16m
Real user monitoring across 500 million interactions on ~200 sites finds that shaving 2 seconds off response time cuts page abandonment ~8% (an 8‑second…
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"Lightning Demos"Simon Perkins, Eric Goldsmith, Jaime Yap, Eric Lawrence27m
HTTPWatch v7 shows browser-level events in waterfalls for IE and Firefox, adds font scaling, flags roughly 20 request-level warnings (performance, security…
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"Moving Fast"Robert Johnson18m
Claims Facebook cuts median interactive page times from about 5s to 2.5s (June–Dec) and maintains that by splitting work into a fast path and slow path…
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"The Mobile Web: The Next Frontier"Joshua Bixby05m
Claims that improving site performance raises revenue with concrete numbers: an e‑commerce customer shows site performance up 65% correlated with average order…
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"Innovation at Scale"Cheryl Ainoa08m
One platform handles hundreds of millions of users, hundreds of thousands of hosts and petabytes of data so a generic toolset fails. Spam on groups sends 20…
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"Google Maps API v3 - Built First for Mobile"Susannah Raub29m
Maps API v3 is rebuilt to cut mobile latency: the initial public interface shrinks from 180 KB to 33 KB main file by shipping tiny state-only models and…
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"Building Fast Webapps, Fast, Lessons From Creating the Meebo Bar"Marcus Westin34m
Meebo Bar runs on >6,000 sites and reaches ~100M monthly users; embed bootstrap is ~10ms, ~12,200 characters and never depends on the provider server. Core…
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"JSMeter: Characterizing Real-World Behavior..."Ben Zorn, Ben Livshits38m
JSMeter instruments IE’s JavaScript engine to count bytecodes and traces of real user sessions on top sites and compares those to SunSpider/V8 benchmarks…
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"Faster, Safer, More Consistent Browsers: Browserscope"Lindsey Simon09m
Browserscope is a cloud test-collection site that accepts user tests which run on any host and beacon results back for automatic aggregation by user agent…
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"Latency: Why You Should Worry and What You Can Do About It"Philip Tellis16m
Argues that latency—not bandwidth—drives user delay, with measured round trips around 430 ms on mobile and ~250 ms on DSL, so multiple resources add seconds to…
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"Display Ads and Page Performance: A Brief Tour of the Ad Ecosystem"Tony Ralph23m
Pages slow by seconds when ad chains multiply: a UK homepage regression shows ~200 total HTTP requests with ~30 from ads and some creatives adding 15…
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"Mitigating Advertising Impact on Page Performance"Ismail Elshareef20m
A custom JavaScript loader sits at the bottom of pages and reads a top‑of‑page pageSetup object that declares dependencies, de‑duplicates files, loads core…
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Exhibit Hall Tour wth Steve Souders and Jesse Robbins Part 1Steve Souders, Jesse Robbins19m
Walks the exhibit floor summarizing product launches, demos and metrics: Circonus unveils a hosted metrics service that merges business and system KPIs…
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Exhibit Hall Tour wth Steve Souders and Jesse Robbins Part 2Steve Souders, Jesse Robbins21m
Splunk is an IT search engine that indexes logs, configs and metrics at massive scale, offers free up to 500 megabytes a day on a laptop and runs terabytes/day…
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