Velocity 2009
2009-06-22..2009-06-24
San Jose, United States
Velocity ·
[Velocity 2009, Velocity 2010, Velocity 2011, Velocity 2013, Velocity 2016 Santa Clara, Velocity 2016 New York, Velocity 2017]
who it's for
front-end developers, performance engineers, site reliability engineers, web operations engineers, backend engineers, product managers
topics
A/B test latency impact; HTTP chunked transfer; gzip compression effects; ad creative optimization; Native Client performance; web workers for UI threading; client-side page cache; CDN and far-future caching; frequent deploys and automation; real-user performance monitoring
| title | author | length |
|---|---|---|
| In Search of... A better, fast | Marissa Mayer | 40m |
Describes concrete performance lessons: A/B tests show adding 30 results increases latency and cuts searches by ~25%; injecting a 400 ms delay reduces searches… | ||
| After the Click | Jonathan Heiliger | 30m |
Facebook scales by pushing real features live with built guardrails and measurement. Engineers own code cradle-to-grave ownership and a Site Reliability team… | ||
| Velocity 09: Chris Bissell, Jeremy Custenborder, and Yadid | Chris Bissell, Jeremy Custenborder, Yadid Ramot | 44m |
MySpace runs on ~10,000 servers and the team finds three concrete failure modes: a regex that inserts <wbr> into long no‑space comments causes massive string… | ||
| High Performance Ads - Is It | Eric Goldsmith | 45m |
Claims that ads often dominate page weight — one case shows 50% initial download reduction after optimization and overall downloads down ~20% so ads still make… | ||
| State of Performance | Steve Souders | 21m |
Chrome arrives and JavaScript engines (V8, TraceMonkey, SquirrelFish) and benchmarks (Dromaeo, SunSpider) push raw browser speed, while tools like YSlow, Page… | ||
| Native CPU Performance in the Brow | Brad Chen | 16m |
Native Client brings native x86 (32/64) code into browsers via an NPAPI plugin and a sandboxed container that forbids filesystem or raw syscalls and uses… | ||
| Frontend Perfor | David Wei, Changhao Jiang | 45m |
Front-end work at Facebook focuses on measurable wins: end to end latency splits into 50% render, 25% network, 25% server, site speed is sampled at 1 in 10,000… | ||
| Improving Performance in Matu | Matt Mullenweg | 26m |
Debugging with Firebug finds a missing favicon 404 causing DB-generated pages that, when fixed, cuts backend work and yields a reported 2x throughput gain… | ||
| Beyond Gzipping | Tony Gentilcore | 15m |
Gzipping typically shrinks HTML about 70% and speeds page loads roughly 50% over DSL and 60% over dialup in the speaker’s tests of Alexa top 10 sites loaded… | ||
| High Performa | Kyle Scholz, Yaron Friedman | 39m |
Google explains practical wins: use HTTP chunking to send the static chrome first and overlap a 250 ms backend search, cutting perceived latency by about 10%… | ||
| Velocity 09: Alistair Croll | Alistair Croll | 06m |
Argues that elastic clouds make capacity an on/off knob for user experience and proposes a new metric, cost per visitor second, to tie performance to revenue… | ||
| On Responsiven | Ben Galbraith, Dion Almaer | 20m |
Claims that UI latency becomes noticeable between 25–100 ms and clearly frustrating past 1 second; demonstrates a frozen canvas image-edit flow versus a… | ||
| Shopzilla's Site Redo - You Get | Philip Dixon | 30m |
Shopzilla rebuilds a monolithic mod_perl site into a Java service-oriented stack with Oracle Coherence caching, an A10 proxy for side‑by‑side rollouts, a CDN… | ||
| The DNA of Next-generation Data C | John Busch | 09m |
Claims a purpose-built appliance (Schooner Information Technology) that tightly integrates dual quad-core Nehalem servers with 64 GB DRAM cache with 0.5 TB… | ||
| World's Simplest Latency Simulat | Ed Robinson | 06m |
Claimed tool instantly doubles website speed by automating front end optimization and ships as an IE plugin released open source. Demo injects specific delays… | ||
| Performance Tools | Eric Goldsmith | 34m |
Demonstrations cover concrete tools and outcomes: webpagetest.org hosted runs IE plug‑in tests from selectable locations and speeds, supports first/repeat… | ||
| Welcome | Jesse Robbins, Steve Souders | 07m |
Conference shifts to measurable performance: focus on Shopzilla metrics showing revenue and operating-cost impact, a Google search session tying latency to… | ||
| Load Balancing Roundup | Alan Kasindorf | 41m |
Overview of load balancing choices with concrete tests and a tool: a Perl-based lb_emu emulator models servers (cores, ticks, keepalives) and compares algos… | ||
| Best I/O is No I/O | Frank Mashraqi | 19m |
Claim: minimize I/O by reorganizing data and shifting work out of the database. Uses a composite clustered key (foreign key + timestamp + extra column) to… | ||
| Building OpenDNS Stats | Richard Crowley | 16m |
OpenDNS processes growth from 8 to 10→14 billion queries/day (about 162,000 req/sec) and logs every request, so the stats system uses a two-stage pipeline… | ||
| Migrating www.aol.com from a Pro | Mandi Walls | 41m |
AOL migrates its main homepage off a decade‑old proprietary stack onto Java + Tomcat + Apache with MySQL, Atomics, NetScaler and a CDN; the 14–15 month project… | ||
| Infrastruct | Adam Jacob, Ezra Zygmuntowicz | 40m |
Demo creates a full Ruby on Rails cluster on Amazon EC2 in minutes, using EngineYard-style orchestration, Chef for infrastructure as code, Nanite over RabbitMQ… | ||
| Scaling for the Expected and Unex | Brian Moon | 27m |
Dealnews.com serves a static Apache front page updated by cron every five minutes to absorb unexpected referrals and uses proxy caches (Varnish/Squid) with… | ||
| 10+ Deploys Pe | John Allspaw, Paul Hammond | 46m |
Flickr runs >10 deploys per day by automating infrastructure, keeping code and configs in a single SVN repo, and using a one-step build plus one-step deploy… | ||
| Page Speed | Bryan McQuade, Richard Rabbat | 19m |
Page Speed is a Firefox/Firebug add-on and open source toolkit (code.google.com/pagespeed) that analyzes real pages and produces actionable fixes: unused… | ||
| Two Years Later, Loving and Hati | Justin Huff | 10m |
Picnik runs a hybrid stack: a small Seattle cage plus AWS S3 and EC2, using render jobs on EC2 and queue-driven scaling for peak load while repurposing… | ||
| Fixing Twitter: Improving the Per | John Adams | 27m |
Describes concrete fixes: centralized metrics at 10‑second intervals feeding a 1,200 metrics dashboard and Ganglia deploy graphs to spot regressions; automated… | ||
| "Next Web" Cha | Umang Gupta, Vik Chaudhary | 13m |
Keynote announces Transaction Perspective 9.0 with an embedded IE browser and new screen‑sensing that clicks and reads Flash/video/ActiveX UI elements, records… | ||
| Performance R | Eric Schurman, Jake Brutlag | 25m |
Large-scale A/B experiments measure concrete user impact: injecting server-side delays from 50 ms to 2 s cuts engagement — a 2 s delay yields ~2% fewer queries… | ||
| Surviving the 2008 Elections | Jeremy Bingham | 10m |
Migrates legacy MySQL schemas to auto‑increment keys, removes a redundant full‑text index that grows to 17GB index on 9GB data, and archives old rows; expands… | ||
| Opening Welcome | Jesse Robbins, Steve Souders | 08m |
Conference size grows from a little over 600 last year to over 700 so far, with active live tweeting (about 200 tweets yesterday). Sponsors include Keynote… | ||
| nothing matches | ||