The document discusses factors that affect website performance, including front-end elements like CSS, JavaScript, images, and back-end elements like caching, threading, and database queries. It notes that only 10-20% of response time is spent on downloading HTML, so focus should be on optimizing other parts of the page load. It also outlines the anatomy of an HTTP request and lists 14 rules for improving performance, such as reducing HTTP requests, using content delivery networks, gzipping components, and making AJAX cacheable. It emphasizes that teams should regularly audit performance and prioritize optimizations.
This document summarizes a presentation about designing systems to handle high loads when Chuck Norris is your customer. It discusses scaling architectures vertically and horizontally, RESTful principles, using NoSQL databases like MongoDB, caching with Memcached, search engines like Sphinx, video/image storage, and bandwidth management. It emphasizes that the right technology depends on business needs, and high-load systems require robust architectures, qualified developers, and avoiding single points of failure.
This document provides an overview of how to set up a SilverStripe website on a server. It discusses basic server configuration including using Apache or Nginx webservers, MySQL/MariaDB or PostgreSQL databases, and PHP runtime. It also covers SilverStripe-specific optimizations like using php-fpm and opcode caches. Finally, it discusses scaling a small SilverStripe site to larger sizes through techniques like caching, splitting servers, and adding failover.
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.
COSCUP 2019 - The discussion between Knex.js and PostgreSQLLen Chang
This document discusses using knex.js to solve schema change problems. Knex.js is a SQL query builder that can be used with Node.js and relational databases. It features query building, pooling, transactions, migrations, and seed files. Migrations allow defining schema changes, and seed files populate data. Testing, automatic deployment, and using only JavaScript helps avoid crashes during schema updates and reduces operation errors.
This document discusses techniques for writing scalable ASP.NET applications, including caching output and objects to improve performance, managing viewstate to reduce network loads, using compression, and load balancing across multiple servers. It covers caching techniques like output caching, object caching, donut caching, and Microsoft's new Velocity distributed caching platform. It also discusses paging large result sets and reducing viewstate payload.
This document summarizes an ID meeting on performance optimization that took place on January 13, 2010. It discusses why front-end optimization is important, including better user experience, more traffic and revenue, and reduced costs. It then provides 34 best practices for performance optimization, such as making fewer HTTP requests, using content delivery networks, gzipping components, putting stylesheets at the top and scripts at the bottom of pages. Specific techniques for optimizing CSS are also outlined, like combining CSS files, inlining images, lazy-loading stylesheets, writing efficient CSS with shorthand and inheritance, and minifying CSS.
The document summarizes strategies for optimizing JavaScript performance. It discusses how browsers have optimized JavaScript engines and techniques like placing scripts at the bottom, minifying code, and avoiding excessive DOM manipulation. Specific tips are provided for efficient data access, DOM usage, flow control, strings, Ajax calls, and responsive interfaces. The goal is to write code that minimizes download size, parsing and execution time to improve responsiveness.
This document summarizes strategies for optimizing front-end performance discussed at a meeting on June 30th, 2011. It identifies blocking scripts, slow CSS selectors, unnecessary data requests, expensive DOM manipulations, and late script loading as potential issues. It recommends leveraging event delegation, reducing the DOM size, batching CSS changes, storing DOM lookups in variables, and deferring non-critical scripts.
Use of No-SQL databases in web applications is becoming increasingly common. In part this is because they work well with rapid application development due to their schema-less nature. And partly because they scale well in a cloud-based environment without too much effort.
MongoDB is one of the many No-SQL database technologies available today. It's schema-less nature works very well with rapid application development nature of ColdFusion. Unlike other No-SQL databases, it offers the ability run arbitrary queries against databases without having to first write map-reduce functions. It also has some other interesting features like capped collections with asynchronous write ability.
In this session, Indy takes you through some common use-cases for considering MongoDB with ColdFusion applications, contrasting it with other No-SQL databases like CouchDB. And he shares his experiences of using it with cloud-based ColdFusion applications. The aim of the session is to provide an overview of using MongoDB with ColdFusion so that you have another tool to consider when working on your next web application.
This was presented at CFObjective, Melbourne, November 17-18, 2011.
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.
MongoDB Days UK: Using MongoDB to Build a Fast and Scalable Content Repositor...MongoDB
Presented by Alain Escaffre, Director of Product Management, Nuxeo
Experience level: Beginner
MongoDB can be used in the Nuxeo Platform as a replacement for traditional SQL databases. Nuxeo's content repository, which is the cornerstone of this open source software platform, can now completely rely on MongoDB for data storage. This presentation will explain the motivation for using MongoDB and will discuss different implementation strategies. In this session, you will learn more about the migrations to MongoDB and how we were able to achieve increased performance gains.
This document discusses strategies for promoting MongoDB adoption. It recommends understanding MongoDB's features, costs, and use cases before promoting it to potential users. It suggests identifying pain points like complex joins that MongoDB could alleviate for "developers" and performance needs that its MapReduce could address for "managers." Examples of successful MongoDB migrations are presented to convince "skeptics." The goal is to alter perceptions and infect target organizations with MongoDB by solving real problems rather than just touting its features.
This document discusses the Python ecosystem for web development. It covers Python's history and features, frameworks like micro, glue and full stack frameworks, databases that integrate with Python like SQLite, MySQL, and MongoDB, ORMs, full text search engines, task queues, WSGI specification, deployment automation, testing, and tools like Pip and Virtualenv. It aims to provide an overview of the key components in building web applications with Python.
This document discusses scalability concepts and practices. It provides examples of how LiveJournal scaled their infrastructure from 1 server to 45 servers by adding more hardware resources like CPUs and databases, and software solutions like caching and load balancing. The key lessons are that using multiple scalability solutions intelligently is best, hardware will likely need to be added, and system knowledge is important to understand bottlenecks. The goal of scaling is to allow for easy growth.
This document provides an overview of non-relational databases and MongoDB. It discusses the advantages of non-SQL databases like scalability and flexibility compared to RDBMS. It also covers MongoDB features like document-oriented data structure, dynamic queries, indexing, replication and sharding. The document demonstrates basic MongoDB operations in Ruby like connecting to a database, inserting and querying documents.
Introduction to new high performance storage engines in mongodb 3.0Henrik Ingo
This document provides an introduction to new high performance storage engines being introduced in MongoDB 2.8, including WiredTiger. It discusses how WiredTiger provides improved performance over MMAPv1 for both read and write heavy workloads through features like document level locking, write optimized data structures, and compression. The document also outlines different configuration options and tunables for WiredTiger to optimize performance based on factors like fitting the working data set in cache or disk.
Making the case for the consideration of network topologies on the performance of UI technologies, and presenting some sample measurements across traditional SAP GUI, WebDynpro for ABAP, and the UI5-based Fiori apps.
10 things you can do to speed up your web app today stir trek editionChris Love
Why is Web Performance Optimization Important and what are some things developers can do to ensure their applications perform well and please end users?
Web performance optimization for modern web applicationsChris Love
Web Performance is extremely important to user experience and an important component of today's modern web applications. This session reviews why's and how's to make your modern web application perform better.
This document provides practical strategies for improving front-end performance of websites. It discusses specific techniques like making fewer HTTP requests by combining files, leveraging browser caching with far-future expires headers, gzipping components, using CSS sprites, and deploying assets on a content delivery network. It also summarizes key rules from tools like YSlow and PageSpeed for optimizing front-end performance.
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.
10 Things You Can Do to Speed Up Your Web App TodayChris Love
Web Performance is a serious issues these days. 80% of web performance issues are in the client. Many developers either do not realize what they are leaving on the table and how that affects the success of their application. These are 10 things any web developer can do in about 30-60 minutes to drastically increase page load times and thus increase the application's profitability.
Building Lightning Fast Websites (for Twin Cities .NET User Group)strommen
1. A website is loaded by a browser through a multi-step process involving DNS lookups, TCP connections, downloading resources like HTML, CSS, JS, and images. This process can be slow due to the number of individual requests and dependencies between resources.
2. Ways to optimize the loading process include making the server fast, inlining critical resources, gzip compression, an optimized caching strategy, optimizing file delivery through techniques like CDNs and HTTP/2, bundling resources, optimizing images, avoiding unnecessary domains, minimizing web fonts, and JavaScript techniques like PJAX. Minifying assets can also speed up loading.
Configuring Apache Servers for Better Web PerormanceSpark::red
Apache is the most popular web server in the world, yet its default configuration can't handle high traffic. Learn how to setup Apache for high performance sites and leverage many of its available modules to deliver a faster web experience for your users. Discover how Apache can max out a 1 Gbps NIC and how to serve over 140,000 pages per minute with a small Apache cluster. This presentation was given by Spark::red's founding partner Devon Hillard in March 2012 at the Boston Web Performance Meetup.
Static resource-optimization using webutilitiesrpatil82
The presentation I had in the past about Static Resource (JS, CSS, HTML) optimization. Webutilities library helps in optimizing front end of the J2EE web application.
.NET 8 is poised to deliver significant advancements with features such as Primary Constructors for cleaner code, enhanced Garbage Collection for better memory management, and optimized JSON Serialization for efficient data handling. Performance is further bolstered by Fast Search, Dynamic Profile Guided Optimization (PGO), and Native AOT for faster runtime and startup. Time Abstraction offers refined time operations, while improved Cryptography and Compression with ZipFile support enhance security and data management. Immutable data structures are introduced with FrozenSet, and RegEx Code Generation promises more efficient pattern matching. Additionally, Redis Output Caching could enhance distributed caching mechanisms, Background Worker enhancements may improve asynchronous task execution, and Semantic Kernel suggests more intelligent code analysis capabilities. Collectively, these features aim to streamline development workflows and boost application performance in the .NET 8 framework.
This document discusses web performance optimization techniques. It is a summary of rules for web performance by Mark Tomlinson, who has 27 years of experience in performance. Some of the key techniques discussed include reducing HTTP requests, optimizing file compression, minimizing code, improving web font and image performance, prefetching resources, avoiding unnecessary redirects, and optimizing infrastructure and databases. The document emphasizes measuring performance through load testing and monitoring to identify bottlenecks.
A Look at the Performance of SAP UI Technologies - UXP212 at SAP TechEd && d-...Sascha Wenninger
A brief overview of why user-perceived performance is important, what factors impact performance over a WAN or the internet, and how some of SAP's UI technologies such as Web Dynpro, UI5, or SAP GUI fare in these networks. Some optimisation approaches are discussed briefly towards the end.
This is an expanded version of the presentation given at Mastering SAP Technologies 2014
10 Tips to Pump Up Your Atlassian PerformanceAtlassian
Hans and Franz are here to pump YOU up. Well, pump your Atlassian tools up, that is. Has your JIRA slowed down? Does your Confluence fall over and can't get back up? We're here to give you some tactical tips on how to take your performance to the next level. We'll reveal best practices from Atlassian support's secret arsenal, teach you how to configure JIRA, Confluence, and other products to get the most out of your system, and focus on small and easy changes that you can implement quickly.
This document discusses various techniques for optimizing frontend performance, including:
1. Using hardware, backend, and frontend optimizations like combined and minified files, CSS sprites, browser caching headers, and content delivery networks.
2. Analyzing performance with tools like Firebug, YSlow, and Google Page Speed to identify opportunities.
3. Specific techniques like gzipping, avoiding redirects, placing scripts at the bottom, and making Ajax cacheable can improve performance.
This document discusses ways to measure and improve web performance. It provides an overview of common web performance metrics and best practices, including minimizing HTTP requests, using content delivery networks, gzipping components, and reducing payload sizes. The document also introduces WebPageTest, an open-source tool for measuring page load performance that provides metrics on load times, waterfall charts, and TCP network traces. Finally, it discusses future opportunities to improve performance through technologies like HTTP/2 and continued optimization of images, scripts, and page weight.
When it comes to E-commerce, time is one of the most important factors in leading your store to success.
If you want customers to stay longer, you have to offer them a pleasant on-line shopping experience.
Speed is the key to achieve this.
This is my latest version of my client side performance presentations. This has been presented at TechEd NZ 2009 & to a couple of .NET user groups around NZ. This presentation focuses on the basics of client-side performance tuning.
Este documento fornece dicas para manter equipes engajadas, como: 1) Conhecer as pessoas da equipe e entender seus estilos de trabalho; 2) Comunicar-se de forma clara sobre o objetivo, método e valor do trabalho; 3) Desenvolver as pessoas por meio de feedbacks, delegação e ferramentas de colaboração.
O documento discute vários aspectos que afetam o desempenho de aplicações web, como cache, threads, SQL, rede, front-end e HTTP requests. Ele também fornece dicas sobre como melhorar o desempenho, como usar cache, bundles, sprites, lazy load e otimizar arquivos CSS e JS.
Este documento discute a arquitetura limpa com ASP.NET Core. Ele descreve os objetivos de uma arquitetura limpa como qualidade, manutenibilidade, testabilidade e independência de frameworks. Ele também explica os princípios SOLID e como a arquitetura limpa organiza o domínio, aplicação, infraestrutura e apresentação.
O documento discute middlewares no .NET Core, explicando que são softwares montados em um pipeline de aplicativo para manipular solicitações e respostas. Detalha que a ordem dos middlewares é importante e como eles são invocados. Também menciona que o ASP.NET MVC é um middleware e apresenta brevemente o conceito MVC.
O documento discute middlewares no .NET Core, explicando que middlewares são softwares que manipulam requisições e respostas em um pipeline de aplicativo. Vários tipos de middlewares são discutidos, incluindo app.Use, app.Run e app.Map, assim como a importância da ordem dos middlewares no pipeline. O documento também faz uma breve menção ao MVC como um tipo de middleware.
O documento apresenta uma introdução ao desenvolvimento web com .NET Core, descrevendo sua história, arquitetura, ferramentas e como transformar um projeto console em um site web usando o framework MVC.
O documento discute como a performance afeta métricas como receita, taxas de cliques e satisfação do usuário. Ele mostra que atrasos de 50ms a 2000ms no carregamento de páginas podem reduzir essas métricas em até 4,4%. O documento também fornece dicas para melhorar o desempenho, como usar cache, compactar arquivos, otimizar requisições de rede e carregar scripts no final da página.
O documento fornece diretrizes para o projeto e implementação de APIs RESTful com C#, cobrindo tópicos como uso correto de verbos HTTP, status codes, versionamento, segurança, documentação e ferramentas.
O documento apresenta boas práticas para o desenvolvimento de APIs com C#, focando em consistência, verbos HTTP, status codes, endpoints, versionamento, documentação e performance. As principais recomendações são: usar verbos como GET e POST de forma consistente, escolher status codes apropriados, nomear endpoints com recursos e ações, documentar a API e usar técnicas como gzip e async/await.
O documento descreve a arquitetura MVC, onde o Controller controla a lógica de negócios, o Model representa os dados e o estado da aplicação, e a View exibe os dados de forma visual para o usuário. Ele também lista alguns sites sobre desenvolvimento web.
Este documento discute os desafios do desenvolvimento de aplicações modernas e como o Docker pode ajudar. Ele explica como o Docker permite que os desenvolvedores escolham as melhores tecnologias disponíveis para construir aplicações que podem ser implantadas em várias infraestruturas, como nuvens e máquinas virtuais. O documento também apresenta os principais recursos do Docker como imagens, Docker Compose e Docker Swarm para criar, empacotar e orquestrar contêineres.
O documento discute estratégias para melhorar o desempenho de aplicações web, incluindo otimizações no back-end, como cache e processamento assíncrono de requisições, e no front-end, como minificação de arquivos CSS e JavaScript, uso de CDN e lazy load de imagens. O objetivo é fazer com que as aplicações sejam mais rápidas e eficientes.
El documento describe la arquitectura MVC, donde el Controller maneja las peticiones, actualiza el Model y devuelve datos a la View para su representación visual, mientras que el Routing dirige las solicitudes a los controladores apropiados de manera genérica o específica.
This document discusses the development of web and mobile applications for 20 million users at Minha Vida, the largest health and wellness portal in Brazil. It provides details on the technologies used such as ASP.NET MVC, Web API, SQL Server, MongoDB, Memcached, SOLR, IIS, and Hyper-V. It also discusses the infrastructure including data centers, Azure, Windows Server, CentOS, and Ubuntu Server. The applications developed include the Minha Vida portal, diet and health apps, and CRM systems serving over 80 million users and delivering over 50 million page views per month.
Este documento fornece informações sobre dois profissionais de tecnologia da empresa Minha Vida: Alexandre Tarifa, CTO, e Rodolfo Fadino, Arquiteto de Soluções. Ele inclui seus contatos, experiências, especialidades e links para blogs.
O documento discute a biblioteca SignalR da Microsoft para criar aplicações web em tempo real usando polling, long polling e web sockets. O SignalR oferece uma solução completa do lado do cliente e servidor para aplicações em tempo real e suporta backplanes como Redis.
O documento discute várias técnicas e estratégias para melhorar o desempenho de aplicações ASP.NET MVC, incluindo: 1) otimizar requisições HTTP reduzindo chamadas e downloads; 2) usar cache efetivamente para evitar processamento desnecessário; 3) minificar e combinar arquivos CSS e JavaScript para reduzir tamanho;
Usar cache é a melhor solução de performance para código, pois evita que ele seja executado o tempo todo, melhorando a velocidade ao armazenar resultados para uso futuro.
This document discusses the AngularJS framework, including its core components of templates, views, controllers, models, and a router. It also mentions how AngularJS uses the MVC pattern and Handlebars templating language. The document outlines the file structure for AngularJS scripts across eight layers including adapters, serializers, helpers, models, views, controllers, routes, and templates.
Exploring Koksar Valley A Guide to Himachal Pradesh's Hidden Gem.pdfShimla and Manali Tour
Koksar Valley is a beautiful place in the Himalayas of Himachal Pradesh. It is perfect for people who love nature and adventure. You can see snow-capped mountains, green fields, and cute villages.
There are lots of things to do in Koksar Valley. You can visit peaceful monasteries, go on hikes, camp under the stars, and fish in the Chandra River. You can also meet friendly villagers and try delicious local food.
Koksar Valley is a great place to escape the city and enjoy the peace and beauty of nature. It is a place where you can create unforgettable memories.
Discover the beauty and charm of Sicily with our ultimate Sicily travel guide. From stunning beaches and ancient ruins to delicious cuisine and vibrant markets, this guide covers it all. Explore historic cities, hike up majestic volcanoes, and savor the flavors of Sicily. Whether you're a history buff, a nature lover, or a foodie, Sicily has something special for everyone. Get ready for an unforgettable adventure! Visit here https://timeforsicily.com/ for more information.
Culinary Tourism Market: Exploring the World Through Food and CultureTandraRoy8
Culinary Tourism involves traveling to experience the unique flavors and culinary traditions of different regions. This market is driven by a growing interest in authentic and immersive food experiences, influenced by cultural exploration, social media, and health trends. From food tours and cooking classes to wine tastings and food festivals, culinary tourism offers diverse opportunities for travelers to indulge in the world's gastronomic delights.
Read more: https://www.futuremarketinsights.com/reports/culinary-traveller-sector-overview
This presentation covers essential aspects of white water rafting, emphasizing safety for non-swimmers. Topics include understanding rapids, necessary gear, pre-rafting preparation, effective communication with guides, recognizing risks, floating techniques, teamwork, and post-trip tips. It encourages preparation and highlights that many non-swimmers can safely enjoy this thrilling adventure.
Switzerland National Day 2024 Celebrations Travel Tips and Visa Guide 1.pdfswitzerlandvisas
Participate in Switzerland National Day which is on the 1st of August in the year 2024. Explore the guidance for the travelers, for example, the ways of getting a tourist visa to Switzerland and the information about the exotic and wonderful festivals and background of the country.
What Are The Best Snowshoe Trails In Tahoe For BeginnersSnowshoe Tahoe
Snowshoeing in Lake Tahoe offers beginners a chance to enjoy winter’s beauty with easy-to-navigate trails and stunning views. Essential gear includes lightweight snowshoes, layered clothing, and safety items. Recommended beginner trails include Mount Tallac, Granite Lake, Fallen Leaf Lake, Tamarack Lake, and Taylor Creek Loop. Stay safe by checking conditions, dressing appropriately, and staying hydrated.
Experience NYC in Style Top NYC Destinations with Our ToursSEO Expert Andy
Welcome to Executive Luxury Service, the premier luxury transport provider in New York, specializing in offering high-end tours of NYC. We have unmatched comfort and style in our fleet of luxury vehicles. Whether you are traveling for business or pleasure, ELS premium luxury car service in New York City is the best way to get around. Book your ride today and experience the difference!
Trip to thiruvanthapuram and kanyakumari.pdfmyselfmalini
Trip to Thiruvanthapuram and Kanyakumari A three-day trip combining Thiruvananthapuram and Kanyakumari offers a diverse experience of Kerala's capital city and the scenic beauty of India's southernmost tip.
FlightsLogic is one of the top API integration providers, assisting travel agencies and tour operators with the best travel services. With Amadeus GDS API integration, you may connect to a broad network of travel agents, online travel agencies (OTAs), and other distribution channels. For more details, please visit our website: https://www.flightslogic.com/amadeus-gds-api-integration.php
KL Tower, or Menara Kuala Lumpur, is a prominent landmark in Malaysia standing at 421 meters. It features an observation deck offering panoramic city views, a revolving restaurant, and the Sky Box glass cube for thrilling experiences. The tower also hosts cultural exhibits and communication facilities.
Passengers can correct the name on their Delta ticket via the official website and over the phone. Note that you may have to pay the name correction fee and a fare difference, if any. To know more about how to correct a name on a Delta ticket, you can get in touch with a consolidation desk at +1-800-633-0441 for immediate assistance.
Know More At: https://pencraftednews.com/can-you-change-the-name-on-a-plane-ticket-frontier/
Are you part of the US military community? Save big on your travels with exclusive US Military Discount Flights! Available to active duty personnel, veterans, and their families, these special offers are a token of appreciation for your service.
6. • “…only 10-20% of the total
end-user response time is
spent getting the HTML
document to the browser. You
need to focus on the other 80-
90% if you want to make your
pages noticeably faster…”
7. Anatomia de uma requisição HTTP
• DNS Lookup
• Initial Connection
– Keep-Alive Header
• Time to First Byte
• Content Download
8. 14 regras
• Rule 1 - Make Fewer HTTP Requests
• Rule 2 - Use a Content Delivery Network
• Rule 3 - Add an Expires Header
• Rule 4 - Gzip Components
• Rule 5 - Put Stylesheets at the Top
• Rule 6 - Put Scripts at the Bottom
• Rule 7 - Avoid CSS Expressions
• Rule 8 - Make JavaScript and CSS External
• Rule 9 - Reduce DNS Lookups
• Rule 10 - Minify JavaScript
• Rule 11 - Avoid Redirects
• Rule 12 - Remove Duplicate Scripts
• Rule 13 - Configure ETags
• Rule 14 - Make AJAX Cacheable
9. Ok, eu sei as 14 regras, e dai?
• Rule 1 - Make Fewer HTTP Requests
• Rule 2 - Use a Content Delivery Network
• Rule 3 - Add an Expires Header
• Rule 4 - Gzip Components
• Rule 5 - Put Stylesheets at the Top
• Rule 6 - Put Scripts at the Bottom
• Rule 7 - Avoid CSS Expressions
• Rule 8 - Make JavaScript and CSS External
• Rule 9 - Reduce DNS Lookups
• Rule 10 - Minify JavaScript
• Rule 11 - Avoid Redirects
• Rule 12 - Remove Duplicate Scripts
• Rule 13 - Configure ETags
• Rule 14 - Make AJAX Cacheable
10. Quando foi a última vez que você
usou o YSlow ou Page Speed?