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.
EasyEngine - Command-Line tool to manage WordPress Sites on NginxrtCamp
EasyEngine is a Command Line Tool to Manage WordPress Sites on Nginx Server.
Apart from site management, it installs php, mysql, nginx, postfix, memcache and everything else required to run high traffic WordPress sites.
You can serve millions of page-views on $5 digitalocean plan using EasyEngine! ;-)
These slides are from WordCamp Mumbai 2014 session.
EasyEngine - Command-Line tool to manage WordPress Sites on NginxrtCamp
EasyEngine is a Command Line Tool to Manage WordPress Sites on Nginx Server.
Apart from site management, it installs php, mysql, nginx, postfix, memcache and everything else required to run high traffic WordPress sites.
You can serve millions of page-views on $5 digitalocean plan using EasyEngine! ;-)
These slides are from WordCamp Mumbai 2014 session.
WordPress + NGINX Best Practices with EasyEngineNGINX, Inc.
Whether for speed, security or scalability, a WordPress site can be improved using NGINX.
View full webinar on-demand at: http://nginx.com/resources/webinars/taste-nginx-conf-wordpress-nginx-best-practices-easyengine/
Leeward WordPress Meetup- Caching and Website SpeedArlen Nagata
Arlen Nagata of HawaiiWP.com shares about how a website works, tips for optimization and caching, and plugin recommendations and next steps to cut your website loading time in half.
HawaiiWP.com specializes in professional website management where we handle every detail of your website to make sure you have a fast, effective website. Find out more at Hawaiiwp.com
Boosting performance for Webpack and React application. Steps to improve build speed and bundle size. Much of this applies to Angular, SASS, Less, and Javascript (ES6) overall.
Debugging WordPress Performance using EasyEnginertCamp
WordPress has thousands of themes and plugins freely available. Not all of them are coded beautifully or tested with big WordPress sites. When a bad piece of code goes live on a WordPress site, it can slow down site and even crash server in some cases.
Goal of this session is to show how EasyEngine and other tools/techniques can be used to debug performance bottleneck on a WordPress site.
This will make life of developers and system admins easy.
Cluster Fudge: Recipes for WordPress in the Cloud (WordCamp Austin 2014 Speaker)Grant Norwood
Your self-hosted WordPress site is quickly growing in popularity and page views. Or maybe you want to get away from that costly enterprise CMS currently on your plate and adopt a delectable, open-source platform. There are many reasons you might need the performance and redundancy of a clustered server solution, and I’ll show you how to mix up the ingredients needed to throw together a successful cloud-hosted WordPress environment that’s right for you.
We’ll talk about common multi-server configurations, from cheap and quick for the cost-conscious business, to robust and complex for the high level of control an enterprise demands.
What is HHVM? How does it compare to other PHP implementations? Should I be using it? How stable is it?
HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining the development flexibility that PHP provides.
Highly available Drupal on a Raspberry Pi clusterJeff Geerling
Question: Can you run a Fortune 500 Drupal 8 website from your basement, on a cluster of Raspberry Pi computers?
Answer: See this presentation to find out! Jeff Geerling is the author of Ansible for DevOps and a Technical Architect at Acquia, who has worked on many large and small scale Drupal websites.
Building faster websites: web performance with WordPressJohannes Siipola
Nobody likes a slow website. Faster sites lead to happier users, and happier users lead to more conversions and revenue. That’s why you should take performance into account in your WordPress project. Learn what practical techniques and WordPress plugins to use in order to optimize your site for speed.
Topics covered:
1. Generating a new Remix project
2. Conventional files
3. Routes (including the nested variety)
4. Styling
5. Database interactions (via sqlite and prisma)
6. Mutations, Validation, and Authentication
7. Error handling
8. SEO with Meta Tags and much more
WordPress + NGINX Best Practices with EasyEngineNGINX, Inc.
Whether for speed, security or scalability, a WordPress site can be improved using NGINX.
View full webinar on-demand at: http://nginx.com/resources/webinars/taste-nginx-conf-wordpress-nginx-best-practices-easyengine/
Leeward WordPress Meetup- Caching and Website SpeedArlen Nagata
Arlen Nagata of HawaiiWP.com shares about how a website works, tips for optimization and caching, and plugin recommendations and next steps to cut your website loading time in half.
HawaiiWP.com specializes in professional website management where we handle every detail of your website to make sure you have a fast, effective website. Find out more at Hawaiiwp.com
Boosting performance for Webpack and React application. Steps to improve build speed and bundle size. Much of this applies to Angular, SASS, Less, and Javascript (ES6) overall.
Debugging WordPress Performance using EasyEnginertCamp
WordPress has thousands of themes and plugins freely available. Not all of them are coded beautifully or tested with big WordPress sites. When a bad piece of code goes live on a WordPress site, it can slow down site and even crash server in some cases.
Goal of this session is to show how EasyEngine and other tools/techniques can be used to debug performance bottleneck on a WordPress site.
This will make life of developers and system admins easy.
Cluster Fudge: Recipes for WordPress in the Cloud (WordCamp Austin 2014 Speaker)Grant Norwood
Your self-hosted WordPress site is quickly growing in popularity and page views. Or maybe you want to get away from that costly enterprise CMS currently on your plate and adopt a delectable, open-source platform. There are many reasons you might need the performance and redundancy of a clustered server solution, and I’ll show you how to mix up the ingredients needed to throw together a successful cloud-hosted WordPress environment that’s right for you.
We’ll talk about common multi-server configurations, from cheap and quick for the cost-conscious business, to robust and complex for the high level of control an enterprise demands.
What is HHVM? How does it compare to other PHP implementations? Should I be using it? How stable is it?
HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining the development flexibility that PHP provides.
Highly available Drupal on a Raspberry Pi clusterJeff Geerling
Question: Can you run a Fortune 500 Drupal 8 website from your basement, on a cluster of Raspberry Pi computers?
Answer: See this presentation to find out! Jeff Geerling is the author of Ansible for DevOps and a Technical Architect at Acquia, who has worked on many large and small scale Drupal websites.
Building faster websites: web performance with WordPressJohannes Siipola
Nobody likes a slow website. Faster sites lead to happier users, and happier users lead to more conversions and revenue. That’s why you should take performance into account in your WordPress project. Learn what practical techniques and WordPress plugins to use in order to optimize your site for speed.
Topics covered:
1. Generating a new Remix project
2. Conventional files
3. Routes (including the nested variety)
4. Styling
5. Database interactions (via sqlite and prisma)
6. Mutations, Validation, and Authentication
7. Error handling
8. SEO with Meta Tags and much more
When creating mobile apps, solid performance is now mandatory. We'll expose the patterns and anti-patterns that will impact this critical trait of your apps, while building a performant mobile app live.
This presentation was made in NextStep Global 2015. See the recording https://www.outsystems.com/nextstep/2015/mobile-apps-that-perform/
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.
My talking points for the presentation on optimization of modern web applications. It is a huge topic, and I concentrated mostly on technical aspects of it.
Lets look at an example of what a performant website can look like. This discuss what concepts should we be considering when looking at website performance. Next we will go over two areas pertaining to website performance: 1) website performance tweaks that you as a web developer can directly make 2) website performance tweaks that you may have to work with your hosting provider or IT department to achieve
Web Performance tuning presentation given at http://www.chippewavalleycodecamp.com/
Covers basic http flow, measuring performance, common changes to improve performance now, and several tools and techniques you can use now.
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.
AWS re:Invent 2016: Amazon CloudFront Flash Talks: Best Practices on Configur...Amazon Web Services
In this series of 15-minute technical flash talks you will learn directly from Amazon CloudFront engineers and their best practices on debugging caching issues, measuring performance using Real User Monitoring (RUM), and stopping malicious viewers using CloudFront and AWS WAF.
Code for Startup MVP (Ruby on Rails) Session 1Henry S
First Session on Learning to Code for Startup MVP's using Ruby on Rails.
This session covers the web architecture, Git/GitHub and makes a real rails app that is deployed to Heroku at the end.
Thanks,
Henry
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.
AWS Summit London 2014 | Dynamic Content Acceleration (300)Amazon Web Services
This session is recommended for people who are new to content distribution networks (CDNs) and have a need to decrease server load and speed up their website’s load time.
In this mid-level technical session you will be able to learn more about improving the performance of web sites and web applications using Amazon CloudFront and Amazon Router 53. Learn how to assess whether your web applications will benefit from caching and how to optimize the delivery of static and dynamic content to boost performance and improve your customers' experience in using your applications.
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.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
2. Mark Tomlinson
- The Performance Sherpa
- 27 years doing performance things
- Former Microsoft, HP & PayPal
- PerfBytes Podcaster
- STPRadio Podcaster
- Speaker and Teacher on Performance
- Online mentoring and coaching
- Currently full-time at a startup in Philly
3. It all started with Steve
Souders’ realization that
we needed more focus on
client-side performance.
<- so he wrote this
book
...and it was such a
total hit with
engineers around
the world, he
decided to write
another one ->
4. RULES FORWEB PERFORMANCE
9. Adopt Website Monitoring
10. Prefetch and reconnect
11. SSL certificate/ HTTPS
12. Web Font Performance
13. Hotlink protection
14. 404 Errors
15. Infrastructure
16. Database Optimization
1. HTTP requests reduction
2. File compression
3. Web caching optimization
4. Code minification
5. Lossy compression
6. Replacement of vector graphics
7. Image Optimization
8. 301 Redirects
Everyone agrees on a basic list of guidelines for web perf:
Source: https://apiumhub.com/tech-blog-barcelona/web-performance-optimization-techniques/
6. Browser: use localbrowser caching?
Local resources are fastest:
• reduces round-trip http requests
• retrieved from local storage
• Web Storage API
• IndexedDB API
• New: Cache API
Gotchas:
• far-futures expires headers on
locally cached content specific to
functionality or branding
• Limits on storage space and speed
7. Put your CSS at the top of the page:
• avoid the “waiting on a blank page”
• immediately style the DOM after it loads
• CSSOM is created immediately after the DOM
Put your javascript at the bottom of the page:
• Scripts act upon the DOM/CSSOM
• Only really useful after the page is active
• Loading a script resource blocks HMTL and
CSS
Generally avoid “embedded” script or css
Browser: css andjavascript placement
8. Browser: async javascript loading?
Script tags have 2 steps:
• Load the script (local or remote)
• Execute the script
With async (or defer):
• the script download will not block
• html and css will render (DOM/CSSOM)
Be careful again:
• if script is required for functionality
• if javascript makes remote calls
9. Browser: prefetch andreconnect?
Perception of Performance Improvement:
• Pre-loading the “next” page/resource
• Runs “in the background”
• If user clicks on a link, it seems fast!
Three main kinds of prefetch:
• Link Prefetching
• DNS Prefetching
• Prerendering
Watch out: bandwidth limitations anyone
10. Browser: replace vector graphics?
Raster Images are mostly bad!
• Made of pixels in a grid
• Non-responsive
• Larger images = more pixels
Scalar Vector Graphics are GOOD!
• Small source size
• Responsive and scales up
• Minimal CPU to dynamically/resize
Gotcha: complex SVG can get big
Alternative: use “srcset” or “picture” tags
11. Browser: webfont performance?
Basics of web fonts:
• Unicode fonts can contain thousands of glyphs.
• There are four font formats: WOFF2, WOFF, EOT,
and TTF.
• Some font formats require the use of
compression.
Optimizing:
• Each font is an additional resource (round-trip)
• Some fonts can “block” the text rendering
• Use local() and url() directives for font-family
12. System:makefewer requests?
The starting point for all web optimization:
• Each remote resource requires a round-trip to/from
• always having some network latency
• always has at least 1 DNS lookup
• Generating the remote resource relies on back-end
systems? Storage? Database? Messaging?
Optimizing:
• load more content in a single roundtrip
• reduce the remote resources required to render
• use HTTP/2+ which helps do this for you
13. System:usenetwork caching?
Content Distribution Network (Akamai):
If you must make a round-trip:
• …maybe only go half-way?
• content can live in a “network cache”
• reduces load on the actual origin server
• has “time-to-live” settings
• programmatic API for CDN content
CDN Gotchas:
• pre-distributing large static content (video)
14. System:usefile compression?
Make big things smaller:
• any file-based resource can be compressed
• reduce network transfer time
• reduce remote storage
• Gzip is most common, also see Brotili
Compression Gotchas:
• requires cpu to compress on the server
• requires cpu to decompress on client
• requires time to compress on the server
• requires time to decompress on the client
15. System:minifyyourcode?
“Why you sendin’ all that white space?”
Pre-parsing code to be smaller size:
• reduces transfer time & bandwidth
• removing superfluous characters
• most end-users will not read your code
• most everyone will not ready comments
Optimizing:
• works on CSS, JS, and HTML and other code
• have both minified & non-minified versions
16. System:avoid404 not-foundand301 redirects?
Avoid 404 Not Found:
• why make the round-trip?
• fast, but still blocks a connection
• fast, but still hits the server
• consider caching custom 404’s
Avoid 301 Redirects:
• why make the round-trip?
• paying twice for 1 resource
• might be fast, but blocks a connection
• fast, but still hits the server
• consider a cache-header
17. LoadTesting – ISSTILL RELEVANT!!
Consider the last 2 items:
• #15 is Infrastructure
• #16 is Database Optimization
WELL OF COURSE!!!!
• finding and removing bottlenecks
• optimizing data source queries
• tuning the system bottom-up
• applying elastic scaling
• monitor all the things!