Front End Performance

Nginx is a lightweight web server that was created in 2002 to address the C10K problem of scaling to 10,000 concurrent connections. It uses an asynchronous event-driven architecture that uses less memory and CPU than traditional multi-threaded models. Key features include acting as a reverse proxy, load balancer, HTTP cache, and web server. Nginx has grown in popularity due to its high performance, low memory usage, simple configuration, and rich feature set including modules for streaming, caching, and dynamic content.

This document outlines an agenda to learn Nginx in 90 minutes through a series of exercises. It introduces Nginx as an HTTP and reverse proxy server, discusses setting up the environment using Docker, and provides 5 exercises to learn basic Nginx configurations including setting up a first web page, proxying to an Apache server, load balancing across multiple servers with CDN, adding HTTP basic authentication, and enabling HTTPS with basic authentication.

Joined by Rick Nelson, Technical Solutions architect from NGINX Server Density take you though the do's and don'ts of monitoring NGINX. Critical and non critical metrics to monitor, important alerts to configure and the best monitoring tools available.

Varnish is configured to improve site response time. The document provides instructions on setting up Varnish cache in front of a web server. It discusses requirements like routing all traffic through a firewall and caching content for 6 hours if the origin server is down. It also covers estimating cache size, installing Varnish and plugins to monitor performance, and ensuring Varnish automatically restarts.

Apache Traffic Server is an open source HTTP server and reverse proxy that is fast, scalable, and easy to configure and manage. It can be used to build content delivery networks and optimize HTTP/1.1 performance by managing TCP connections. Key features include caching, load balancing, SSL support, and plugins. Traffic Server uses an event-driven model for high concurrency and can handle over 350,000 requests per second on a single machine. It is actively developed and widely used in production environments.

This document discusses caching strategies for Rails applications, including: 1. Using Rails caching for queries, pages, assets, and fragments to improve performance. 2. Configuring Cache-Control headers, compression, and CDNs like Fastly for efficient caching. 3. Techniques for caching dynamic content at the edge using surrogate keys and purging cached responses.

Presentation by Federico Facca Head of Martel Lab, Martel Innovate FIWARE Tech Summit 28-29 November, 2017 Malaga, Spain

The document discusses load balancing applications with NGINX in a CoreOS cluster. It provides an overview of using CoreOS, etcd, and fleet to deploy and manage containers across a cluster. Etcd is used for service discovery to track dynamic IP addresses and endpoints, while fleet is used as an application scheduler to deploy units and rebalance loads. NGINX can then be used as a software load balancer to distribute traffic to the backend services. The document demonstrates setting up this environment with CoreOS, etcd, fleet and NGINX to provide load balancing in a clustered deployment.

NGINX is a well kept secret of high performance web service. Many people know NGINX as an Open Source web server that delivers static content blazingly fast. But, it has many more features to help accelerate delivery of bits to your end users even in more complicated application environments. In this talk we’ll cover several things that most developers or administrators could implement to further delight their end users.

In this presentation we take a look at the basics of content caching with NGINX as well as advanced configuration and implantation.

NGINX is used by more than 130 million websites as a lightweight way to serve web content. Use it to decrease costs, improve performance and open up bottlenecks in web and application server environments without a major architectural overhaul. In this talk, we'll cover the three most basic use cases of static content delivery, application load balancing, and web proxying with caching; and touch on the NGINX maintained Docker container.

Cephalocon APAC 2018 March 22-23, 2018 - Beijing, China David Byte, SUSE Senior Technology Strategist Alex Lau, SUSE Storage Consultant

The document discusses an automatic operation bot for Ceph clusters at eBay. It describes monitoring the clusters with tools like Prometheus and node-exporter. When issues arise, over 95% are due to failed disks, which the bot would automatically remove and replace. It would record failures and perform remediation steps like removing OSDs, offline disks, and lighting indicator LEDs. The bot design includes components for monitoring, alerting, a task queue, and executor to automate common operations and reduce manual work.

This document summarizes a talk given at ApacheCon 2015 about replacing Squid with Apache Traffic Server (ATS) as the proxy server at Yahoo. It discusses the history of using Squid at Yahoo, limitations with Squid that led to considering ATS, key differences in configuration between the two, how features like caching, logging, and peering are implemented in each, and lessons learned from the migration process.

Learn how to automate your infrastructure to make more time for fun things. In this rapid fire intro to Chef, an open source provisioning and automation platform, we'll touch on the strengths of it's flexible architecture as well as showing some concrete and simple starting points on your path to become an executive chef.

The document provides guidance on optimizing performance when using Varnish Cache as a web application accelerator. Some key points include: - Varnish can increase throughput from hundreds to thousands of requests per second. - It can relieve pressure on backends by caching content, avoiding expensive CDNs, and handling more requests than hardware alone. - Use 64-bit systems for better performance over 32-bit. - Configure system settings like file handles and threads to optimize Varnish. - The Varnish Configuration Language (VCL) controls caching behavior and backends through directives like vcl_recv and backends.

The document discusses various techniques for improving front-end website performance, including reducing the number of HTTP requests, using content delivery networks and caching, gzip compression, optimizing CSS and JavaScript loading, image optimization, and lazy loading of content not visible initially. Specific techniques mentioned include combining files, setting long cache expiration headers, minifying files, parallelizing downloads, and deferring non-critical JavaScript initialization. The goal is to render an initial version as fast as possible through optimizations that reduce page load time.

This is an overview session that touches onto all kinds of new developments in the wide field of web design. This talk is mainly focussed on client side technologies (HTML, CSS, JavaScript) and outlines the news of the past months. If you have not been following the buzz lately, this is a good session to get you up to speed.

Brian Moon discusses the evolution of the architecture of dealnews.com from a single server setup in the late 1990s to a clustered architecture in 2008. The initial setup encountered bottlenecks with software load balancing and using NFS. They overcame these by implementing hardware load balancing, dropping NFS, and using Memcached for caching. As traffic increased from sites like Digg and Yahoo!, they added more servers, offloaded static content to a CDN, and implemented a custom caching proxy and "pushed cache" to prevent stampeding. Their current architecture loads balances incoming traffic with F5 BIG-IP and uses replication and load balancing for the database.

In this session I will show you how modern browsers and sites can coordinate the dance of loading & rendering to deliver a web that is fast where it matters to users. The biggest leaps in browser improvements, including Firefox Quantum, focused on areas like scheduling, breaking up and parallelizing work. Discover where you can benefit from fine control and what aspects of performance you can leave to the browser. Applying this knowledge will help you build fluid, native-like experiences that can handle the growing complexity of the web.

The document discusses optimizing WordPress performance. It recommends minimizing frontend assets like images, implementing caching for assets and application chunks, optimizing themes and plugins, and choosing efficient server setups. Specific plugins like W3 Total Cache and a CDN can improve performance by up to 10 times by caching static content. Nginx is presented as a faster alternative to Apache. Overall, the key takeaways are to simplify code, minimize requests, optimize caching, and reduce payload sizes to improve perceived and actual performance.

The document discusses optimizing WordPress performance. It recommends minimizing frontend assets like images, implementing caching for assets and application chunks, optimizing themes and plugins, and choosing efficient server setups. Specific plugins like W3 Total Cache and a CDN can improve performance by up to 10 times by caching static content. Nginx is presented as a faster alternative to Apache. Overall, the key takeaways are to simplify code, minimize requests, optimize caching, and reduce payload sizes to improve perceived and actual performance.

The document discusses optimizing WordPress performance. It recommends minimizing frontend assets like images, implementing caching for assets and database queries, optimizing themes and plugins, and using a fast server setup like Nginx. Real-world tests show Nginx outperforming Apache. Caching plugins like W3 Total Cache can improve performance over 10x when combined with a CDN like Amazon S3 and CloudFront. The document stresses optimizing the application layer, interface, and changing user perception of performance.

The document discusses optimizing WordPress performance. It recommends minimizing frontend assets like images, implementing caching for assets and database queries, optimizing themes and plugins, and using a fast server setup like Nginx. Real-world tests show Nginx outperforming Apache. Caching plugins like W3 Total Cache can improve performance over 10x when combined with a CDN like Amazon S3 and CloudFront. The document stresses optimizing the application layer through themes and plugins, as well as interface polish and caching to minimize page load times.

This document discusses how Capistrano can be used to automate deployments and other tasks across multiple servers. It provides examples of how Capistrano can be used for deploying code, updating databases, checking server health metrics, restarting services, and more. While originally designed for Ruby on Rails applications, Capistrano can be adapted for other languages and technologies as well by customizing the deployment recipes.

Points.com webdev lunch and learn #2: Page performance. What makes websites slow, how to make them faster.

This document discusses techniques for writing scalable ASP.NET applications, including caching output and objects to increase server performance, reducing network loads by managing viewstate and compression, and load balancing across multiple servers. It covers caching methods like output caching, object caching, donut caching and Velocity distributed caching. It also discusses paging large result sets and resources for further information.

This document discusses optimizing WordPress performance. It recommends minimizing frontend assets like CSS and images, using caching plugins to improve load times, optimizing themes and plugins, and choosing a fast web server like Nginx. Real-world tests show Nginx outperforming Apache. Specific tips include simplifying themes, deleting unused plugins, moving scripts to the bottom, and using a CDN with caching plugins to serve static assets quickly. The document emphasizes improving perceived performance through responsiveness, feedback and progressive loading.

The document provides 14 tips for optimizing website performance based on the 80/20 rule. The tips include minimizing HTTP requests by combining files, using a CDN, adding caching headers, gzipping files, optimizing CSS and JS placement, avoiding redirects and duplicate scripts, and making Ajax cacheable. Following these best practices can significantly improve page load times by reducing network requests and making better use of browser caching.

This document discusses techniques for writing scalable ASP.NET applications, including caching output and objects to improve performance, using paging to reduce database loads, and minimizing network traffic by managing viewstate and compressing content. It provides an overview of various caching strategies like output caching, donut caching, and object caching using the caching API. It also covers reducing viewstate size and compressing content and JavaScript to reduce page size.