Ilya Grigorik

videospeed. HTML5 video speed controller (for Google Chrome)

ga-beacon. Google Analytics collector-as-a-service (using GA measurement protocol).

gharchive.org. GH Archive is a project to record the public GitHub timeline, archive it, and make it easily accessible for further analysis.

em-websocket. EventMachine based WebSocket server

decisiontree. ID3-based implementation of the ML Decision Tree algorithm

em-http-request. Asynchronous HTTP Client (EventMachine + Ruby)

em-synchrony. Fiber aware EventMachine clients and convenience classes

http-2. Pure Ruby implementation of HTTP/2 protocol

bugspots. Implementation of simple bug prediction hotspot heuristic

vimgolf. Real Vim ninjas count every keystroke - do you?

agent. Agent is an attempt at modelling Go-like concurrency, in Ruby

em-proxy. EventMachine Proxy DSL for writing high-performance transparent / intercepting proxies in Ruby

node-spdyproxy. SPDY forwarding proxy - fast and secure

bloomfilter-rb. BloomFilter(s) in Ruby: Native counting filter + Redis counting/non-counting filters

async-rails. async Rails 3 stack demo

istlsfastyet.com. Is TLS fast yet? Yes, yes it is.

hackernews-button. Embeddable Hacker News button + vote counter for your site

http-client-hints. Ruby

hpbn.co. High Performance Browser Networking (O'Reilly)

spdy. SPDY is a protocol designed to reduce latency of web pages

webp-detect. WebP with Accept negotiation

zeroconf-router. Zero-config reverse proxies: let's get there!

autoperf. Ruby driver for httperf - automated load and performance testing

PubSubHubbub. Asynchronous PubSubHubbub Ruby Client

heroku-buildpack-dart. Heroku buildpack for Dart

rack-speedtracer. SpeedTracer middleware for server side debugging

textquery. Evaluate any text against a collection of match rules

tokyo-recipes. Lean & mean Tokyo Cabinet recipes (with Lua)

slowgrowl. Surface slow code paths in your Rails 3 app via Growl

mneme. Mneme is an HTTP web-service for recording and identifying previously seen records - aka, duplicate detection.

pregel. Single-node implementation of Google's Pregel framework for graph processing.

RRRDTool. Round robin database pattern via Redis sorted sets

gmetric. Pure Ruby interface for generating Ganglia gmetric packets

rack-aggregate. Rack response-time statistics aggregator middleware

em-mysqlplus. Async MySQL driver for Ruby/Eventmachine

em-jack. An Evented Beanstalk Client

language_detector. ruby language detection library using n-gram

rb-pagerank. Code from RailsConf '09 pres: Building Mini Google in Ruby

closure-sprockets. Sprockets processor for Google's Closure tools

shopify-core-web-vitals. This embedded app provides a report on how real-world Google Chrome users experience the Shopify-powered storefront, as captured by the Chrome UX Report, and enables the site owner to benchmark their site against a custom list of competitors.

netinfo-monitor. Displays network quality as reported by Network Information API.

css-font-timeout. A proposal for CSS to let web developers control font timeout

ruby2lolz. Ruby to Lolcode translator, kthnxbai.

omnipipe. web pipes for your browser's omnibar!

issue-tracker. W3C webperf issue tracker

presentations. Slides, notes, code examples from some of the bigger conferences & talks.

libgeohash. Ruby FFI wrapper for libgeohash

performance-observer. JavaScript