A web perf dashboard up & running in 90 minutes presentation

Presentation from Velocity NYC 2014 on setting up private WebPagetest instances Video: https://www.youtube.com/playlist?list=PLWa0Ky8nXQTaFXpT_YNvLElTEpHUyaZi4

CouchDB is a document-oriented NoSQL database that uses JSON documents with schema-free design. It features a built-in map/reduce function for querying indexes, and uses HTTP for an API and replication. CouchDB is robust, scales well, and is designed for high availability through its append-only writing and multi-version concurrency control.

The document discusses converting a development environment to a Docker stack. It describes some of the benefits of using Docker for consolidating different environments that may have varying PHP and MySQL versions. It provides an example docker-compose.yml file that defines services for Nginx, MySQL, and PHP-FPM containers along with networking and volume configurations. It also includes some sidebars on Docker concepts like the hierarchy of images, containers, services and stacks, as well as common Docker commands.

This document discusses using NPM scripts as a build tool. It covers setting up scripts in the package.json file to automate common tasks like linting, testing, building assets, and running dev servers. Examples are provided of setting up scripts for CSS preprocessing, bundling JavaScript, running tests, and more for both AngularJS and React projects. Chaining, piping, and running tasks concurrently with NPM scripts is also covered.

The HTML5 WebSocket API allows for true full-duplex communication between a client and server. It uses the WebSocket protocol which provides a standardized way for the client to "upgrade" an HTTP connection to a WebSocket connection, allowing for messages to be sent in either direction at any time with very little overhead. This enables real-time applications that were previously difficult to achieve with traditional HTTP requests. Common server implementations include Kaazing WebSocket Gateway, Jetty, and Node.js. The JavaScript API provides an easy way for clients to connect, send, and receive messages via a WebSocket connection.

PlayNode Conference 2012 (NodeConf 2012 in Korea) 에서 발표한 node.js 기반의 정적 페이지 블로그 엔진 하루프레스 하루프레스의 기능적인 특징, 철학 그리고 기술적인 특징을 통해 알아보는 개발 노하우에 대한 내용을 닮고 있습니다.

Presentation by @aaronpeters at Dutch Web Performance Meetup on August 22 2012. The presentation covers new stuff in WPT UI, the WPT API, scripting and hidden gems. Awesome tool, but also room for improvement.

This document summarizes techniques for building scalable websites with Perl, including caching whole pages, chunks of HTML/data, and using job queuing. Caching helps performance by reducing workload and scalability by lowering database load. Large sites like Yahoo cache aggressively. Job queuing prevents overloading resources and keeps websites responsive under high demand by lining requests up in a queue.

This document summarizes a presentation on high performance mobile web. The presentation covers: - Delivering fast mobile experiences by making fewer HTTP requests, using CDNs, browser prefetching, and other techniques. - Measuring web performance using Navigation Timing, Resource Timing, custom timing marks, and tools like WebPagetest and Google Analytics. - Typical mobile network performance statistics like average latency, download speeds, and how these numbers impact page load times.

It's no denying that rich Javascript applications (sometimes called One Page Applications) are a big thing, but what if you want to leverage Drupal on the backend, or have an existing site? Tools like Angular.JS and EmberJS are great when you have an API, but Drupal 7 doesn't really have an API layer. I'll explore the parts of a one page application and how to integrate it into either an existing or a new Drupal site, and the pitfalls that one must watch out for.

This document provides a summary of Mike Malone's talk on scaling Django web apps. It discusses how Pownce scaled to handle hundreds of requests per second and thousands of database operations per second while serving millions of users, relationships, notes, and terabytes of static data. It also covers some of the common bottlenecks Pownce encountered and eliminated in scaling their Django application, including using caching, load balancing, and queuing to improve performance and scalability.

The document summarizes new features in Apache HTTPD version 2.4, including improved performance through the Event MPM, faster APR, and reduced memory usage. It describes new configuration options like finer timeout controls and the <If> directive. New modules like mod_lua and mod_proxy submodules are highlighted. The document also discusses how Apache has adapted to cloud computing through dynamic proxying, load balancing, and self-aware environments.

This document discusses how to maintain large web applications over time. It describes how the author's team managed a web application with over 65,000 lines of code and 6,000 automated tests over 2.5 years of development. Key aspects included packaging full releases, automating dependency installation, specifying supported environments, and automating data migrations during upgrades. The goal was to have a sustainable process that allowed for continuous development without slowing down due to maintenance issues.

Jim Jagielski discusses the Apache HTTPD v2.4 reverse proxy capabilities. Key points include: 1) Apache HTTPD v2.4 includes improvements that make it suitable for cloud environments and high performance as a reverse proxy, including support for asynchronous I/O and additional load balancing mechanisms. 2) As a reverse proxy, Apache HTTPD can provide security, load balancing, caching, and high availability for backend servers located behind the proxy. 3) Apache HTTPD v2.4's reverse proxy functionality includes support for additional protocols, load balancing algorithms, dynamic configuration, and HTTP/2.

Overview of the Enhanced Reverse Proxy features of Apache httpd 2.4, including dynamic control and cloud-based features.

The document discusses cache concepts and the Varnish caching software. It provides an agenda that covers cache concepts like levels and types of caches as well as HTTP headers that help caching. It then covers Varnish, describing it as an HTTP accelerator, and discusses its process architecture, installation, basic configuration using VCL, backends, probes, directors, functions/subroutines, and tuning best practices.

This document discusses using npm scripts for front-end automation and builds. It argues that npm scripts provide a simple, cross-compatible way to automate tasks like bundling, transpiling, testing and deployment without additional build tools. Npm scripts take advantage of existing CLI tools and allow decomposing complex automation into simple, composable tasks through lifecycle scripts and npm-run-all. Some tradeoffs are less extensibility and ongoing challenges with cross-platform support, but the approach aims to provide simpler mental models than alternative build systems.

Tips and trick from optimizing web page performance at Google.

Search engine optimization requires optimizing websites for mobile users and page speed, creating relevant high-quality content with internal and external links, and social sharing to build links and traffic. Proper onsite optimization and link building are important strategies to improve search rankings and drive traffic from search engines. Questions about SEO strategies and tactics can be directed to online marketing companies.

This document provides tips for optimizing a website to load pages faster. It recommends analyzing the site using Google PageSpeed Insights, optimizing images by using appropriate formats and sizing, leveraging browser caching by setting expiration dates, minifying files like CSS and JavaScript, and enabling gzip compression. The basic rules covered are optimizing images, using the correct order for stylesheets, scripts and inline JavaScript, leveraging browser caching, minifying files, and enabling gzip.

This document discusses how retailers can increase profits through store benchmarking and business intelligence (BI). It provides examples of how Scandinavian retailers use dashboards to monitor key performance indicators, benchmark stores, and motivate store managers through competition. The solution offers predefined analyses that store managers can access from their dashboards to understand reasons for performance and identify opportunities. Small changes across many stores can significantly impact overall profits.

Aldata provides a category insights software tool that allows category teams to analyze category performance, evaluate factors influencing performance like price and promotions, model changes, and generate store planograms. The tool uses POS data, consumer data, and space data to provide dashboard-driven insights through benchmarks, questions, and trend analysis at different levels to identify distribution gaps and opportunities for categories.

My slide deck from my session, AD113: Speed Up Your Applications with Nginx + PageSpeed, at MWLUG 2015 in Atlanta, GA at the Ritz-Carlton. For more, see: - https://edm00se.io/self-promotion/mwlug-ad113-success - https://github.com/edm00se/AD113-Speed-Up-Your-Apps-with-Nginx-and-PageSpeed

This document summarizes Walmart's approach to agile development. It discusses how Walmart serves over 245 million customer visits per week with over 2.2 million associates across more than 10,800 retail units. It then outlines Walmart's focus on agile practices at the program, project, and individual level to improve delivery and learning in a way that aligns with their overall development lifecycle.

Here are the key demographics of the survey participants: - 73.5% of participants were female, 26.5% were male - 68% of participants were between the ages of 18-34 - The majority (73.5%) of participants were female - Most participants (68%) were between the ages of 18-34

With online retailers taking an increasing market share across many home improvement categories, Steve examines whether price is now the only remaining tool with which retailers and suppliers alike can hope to grow their business'.

This document discusses how technology and the internet have changed consumer behavior and decision making processes. Some key points: 1. The information phase of the consumer journey has become more important due to the ubiquitous availability of information online. Consumers now do extensive research online before making purchase decisions. 2. Marketers need to shift from "awareness advertising" to providing helpful information to consumers during their research phase through content marketing. 3. The experience of using a product is also more important as consumers share their opinions online. Marketers should build triggers to encourage positive word-of-mouth sharing of products. 4. Understanding consumer context is crucial to provide relevant information instead of interruptive advertising. Data needs

This document discusses web technologies including HTML5, JavaScript performance, and particle systems for animations. It provides links to articles about the WHATWG taking over stewardship of HTML from the W3C and renaming HTML5 to HTML. It also discusses techniques like just-in-time compilation that help improve JavaScript performance in browsers. Finally, it introduces the concept of a particle system for creating animations and effects with many individual points, and provides code for generating and updating particle objects in a simple system.

This document summarizes Naoya Nakazawa's notes and presentation from the Velocity 2009 conference. The conference took place from June 22-24, 2009 in San Jose, CA at the Fairmont Hotel. It covered topics like infrastructure management with Puppet, Hadoop operations, scaling Twitter, and frontend performance at Facebook. Many talks discussed lessons learned from scaling sites like Flickr, Google, Facebook and Twitter to handle massive traffic. Overall the conference provided insights into building fast, scalable and efficient web applications and services.

This document summarizes Joone Hur's presentation on web standards support in WebKit. It discusses several new and emerging web APIs including custom protocol and content handlers, AddSearchProvider, Navigation Timing, device APIs for battery status, contacts, and media capture. It also covers the Unified Storage Quota API, Shadow DOM API, and notes that WebCL and WebKit2 have been added to Samsung and Nokia browsers.