The document discusses various techniques for optimizing UI performance, including optimizing caching, minimizing round-trip times, minimizing request size, minimizing payload size, and optimizing browser rendering. Specific techniques mentioned include leveraging browser and proxy caching, minimizing DNS lookups and redirects, combining external JavaScript, minimizing cookie and request size, enabling gzip compression, and optimizing images. Profiling and heap analysis tools are also discussed for diagnosing backend performance issues.
This technical presentation shows you the best practices with EDB Postgres tools, that are designed to make database administration easier and more efficient:
● Tune a new database using Postgres Expert
● Set up streaming replication in EDB Postgres Enterprise Manager (PEM)
● Create a backup schedule in EDB Postgres Backup and Recovery
● Automatically failover with EDB Postgres Failover Manager
● Use SQL Profiler and Index Advisor to add indexes
The presentation also included a demonstration. To access the recording visit www.enterprisedb.com and access the webcast recordings section or email info@enterprisedb.com.
Web caching provides several benefits including bandwidth savings, reducing server load, and decreasing network latency. It works by intercepting HTTP requests and checking a local cache for the requested object before going to the origin server. Different caching approaches include proxy caching, reverse proxy caching, transparent proxy caching, and hierarchical caching. New techniques like adaptive caching and push caching aim to dynamically optimize cache placement near popular content or users.
QSpiders - Installation and Brief Dose of Load Runner
The document provides information on performance testing processes and tools. It outlines 8 key steps: 1) create scripts, 2) create test scenarios, 3) execute load testing, 4) analyze results, 5) test reporting, 6) performance tuning, 7) communication planning, and 8) troubleshooting. It also discusses tools like LoadRunner, Controller, and Analysis for executing and analyzing tests. The document emphasizes having a thorough test process and communication plan to ensure performance testing is done correctly.
The document discusses performance tuning topics in WebLogic Server including tuning EJBs, JMS, web applications, web services, and JDBC. It provides guidance on understanding performance objectives such as anticipated users, requests, data, and target CPU utilization. It also discusses monitoring disk and CPU utilization, bottlenecks, and provides specific tuning recommendations for EJBs, MDB pools, stateless session bean pools, entity bean pools, and JMS.
The document discusses the WebLogic Server plugin which allows WebLogic Server to communicate with other web servers like Apache HTTP Server and Microsoft IIS. It specifically focuses on the Apache HTTP Server plugin, describing how it allows requests to be proxied from Apache to WebLogic Server so that dynamic functionality is handled by WebLogic Server. It provides instructions for installing the Apache plugin, which involves copying files and configuring Apache modules, and testing the installation.
Performance tuning in WebLogic Server involves tuning various components like EJBs, JMS, web applications, and web services. It is important to understand performance objectives like anticipated load and target CPU utilization. Monitoring disk, CPU, and network utilization helps identify bottlenecks. Common tuning techniques include optimizing pooling, caching, threading, and disabling unnecessary processing.
This session introduces tools that can help you analyze and troubleshoot performance with SharePoint 2013. This sessions presents tools like perfmon, Fiddler, Visual Round Trip Analyzer, IIS LogParser, Developer Dashboard and of course we create Web and Load Tests in Visual Studio 2013.
At the end we also take a look at some of the tips and best practices to improve performance on SharePoint 2013.
UniMity's substantial presence in Drupal Camp Deccan 11-11-11 in HYD. Audience were just applauding with gusto at the end of our presentation (How to build and maintain high performance websites)
This document discusses various techniques for optimizing proxy server performance, including:
1) Establishing baseline performance metrics and monitoring the server to identify bottlenecks. Common bottlenecks include incorrect settings, faulty resources, insufficient resources, or applications hogging resources.
2) Caching web content and using proxy arrays, network load balancing, or round robin DNS to distribute load across multiple proxy servers for improved performance and high availability.
3) Monitoring server components like CPU usage, memory usage, disk performance, and network bandwidth to identify optimization opportunities.
Visit http://wiki.directi.com/x/LwAj for the video. This is a presentation I delivered at the Great Indian Developer Summit 2008. It covers a wide-array of topics and a plethora of lessons we have learnt (some the hard way) over the last 9 years in building web apps that are used by millions of users serving billions of page views every month. Topics and Techniques include Vertical scaling, Horizontal Scaling, Vertical Partitioning, Horizontal Partitioning, Loose Coupling, Caching, Clustering, Reverse Proxying and more.
WebLogic Security provides a comprehensive security architecture for securing WebLogic Server applications. It includes features such as authentication, authorization, auditing, identity assertion, and supports standards like SAML, JAAS, and WS-Security. The security service can be used standalone or as part of an enterprise security solution. It aims to balance ease of use with customizability and provides both default and customizable security providers.
Slides on how to process large data, such as how to handle large amount of incoming frequent inputs, large Object or documents and how to provide data to massive amount of clients
As interest in cloud solutions and their use with enterprise applications has increased, MavenWire has taken a lead in implementing and benchmarking several instances of OTM using Amazon Web Services (AWS) and Elastic Cloud Compute (EC2). This presentation outlines how the instances were set up and configured; potential benefits of OTM in the cloud; cost and performance comparisons between the cloud and "traditional" server configurations; areas of concern and issues to be aware of when implementing OTM in the cloud. In addition, we will also outline what we believe the future direction of cloud OTM will be, as well as where we believe it is best suited to customer needs.
Docstoc.com (founded in 2007, acquired by Intuit in 2013) is one of the largest online repositories of documents. A critical component of our product is our text file service, which delivers text documents to both humans and crawlers. In early 2013 this service, which was file system based, became a prohibitive bottleneck. To meet our scaling needs, we replaced it with one backed by a sharded MongoDB cluster. This talk will cover:
Our traffic load (5:1 bots:humans ratio) How we implemented the system in our SOA environment How MongoDB fit our use case out of the box How we load tested peak time traffic before hardware purchase How we loaded the system and how we rolled it out live Performance metrics and gains in stability and reliability
This document discusses unit testing in Groovy. It begins with reviewing basics of unit test structure and organization, including parts of a test like annotations and assertions, and different styles of organizing tests by class, feature, or fixture. The document then provides an example of a Groovy unit test for a game board, showing how to test for exceptions from invalid moves and assert that valid moves are properly marked on the board. It concludes with references for further reading on testing patterns and practices.
Optimizing web page performance involves minimizing round trips, request sizes, and payload sizes. This includes leveraging browser caching, combining and minifying assets, gzip compression, and optimizing images. Developer tools can identify optimization opportunities like unused resources and suggest techniques for faster loading and rendering.
Gowebbaby is a global web design company that has designed over 500 custom WordPress websites and 1000 blogs. There are several major issues that can cause a WordPress website to run slowly, including unwanted plugins, lack of caching, poor hosting, database optimization issues, and using an outdated version of WordPress. The document provides tips in each area to improve website speed, such as disabling unused plugins, installing a caching plugin, choosing a fast hosting provider, optimizing the database, and upgrading to the latest version.
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.
This document provides an overview of optimizing the performance of Joomla! websites. It discusses basic principles like using content delivery networks and combining files. It recommends preparing Joomla! with tools like Firebug and enabling caching. Specific optimizations for templates and content are covered, like image resizing and subdomain delivery. Hosting configuration tips include MySQL optimization and using a CDN. The document uses a case study example and concludes with thanks.
Robotframework is a keyword-driven testing framework for acceptance testing and automation. It uses Python and allows testing web applications using libraries like SeleniumLibrary. Tests are written using an easy syntax and can be run from the command line. Results include logs, reports, and pass/fail information. Custom libraries can also be created and distributed for use within Robotframework tests.
Configuring Apache Servers for Better Web Perormance
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.
This document discusses browser caching and techniques to improve website performance through caching. Browser caching involves temporarily storing recently visited web pages on a user's hard disk to load them faster during the same browsing session. Making fewer HTTP requests, adding expires headers, using content delivery networks, and leveraging browser caching directives like Cache-Control can help optimize caching. Common file types like CSS, JavaScript, images that should be cached are also mentioned. The document provides details on various caching strategies and their benefits like reducing bandwidth usage and loading websites faster.
Are you trying to improve your website performance? Read the blog to find some handpicked strategies. Implement these and note the difference! https://www.webguru-india.com/blog/tips-to-improve-your-website-performance/
The document provides best practices for optimizing frontend performance by reducing page load time. It discusses ways to reduce the number of HTTP requests, DNS lookups, redirects and duplicate scripts. It also recommends techniques like minifying assets, leveraging caching, prioritizing critical components, optimizing images and using content delivery networks.
Did you know that 80% to 90% of the user's page-load time comes from components outside the firewall? Optimizing performance on the front end (e.g. from the client side) can enhance the user experience by reducing the response times of your web pages and making them load and render much faster.
Improving web site performance and scalability while saving
This document discusses various techniques for improving web site performance and scalability while reducing costs, including:
1. Optimizing code to reduce HTTP requests and payload size.
2. Leveraging browser caching through content expiration, HTTP compression, and cache validation.
3. Minifying and consolidating CSS and JavaScript files.
4. Using a content delivery network (CDN) to distribute static assets globally.
5. Caching data and view state to reduce database queries and payload size.
Stress Test Drupal on Amazon EC2 vs. RackSpace cloudAndy Kucharski
RackSpace vs Amazon EC2 stress evaluation of responding to user registration on a Drupal 6 ubercart ecommerce site test using LoadStorm.
We have stood up an eCommerce site built with Drupal6 and ubercart and stood it up on two most popular cloud providers. We then built a stress test using LoadStorm and tried to push the sites and servers to the limit. Here are the results of our experiment.
In order to optimize server performance for whatsoever reason, you need to start by monitoring the server. In most cases, before server monitoring commences, it is common practice to establish baseline performance metrics for the specific server.
Make Drupal Run Fast - increase page load speedAndy Kucharski
What does it mean when someone says “My Site is slow now”? What is page speed? How do you measure it? How can you make it faster? We’ll try to answer these questions, provide you with a set of tools to use and explain how this relates to your server load.
We will cover:
- What is page load speed? – Tools used to measure performance of your pages and site – Six Key Improvements to make Drupal “run fast”
++ Performance Module settings and how they work
++ Caching – biggest gainer and how to implement Boost
++ Other quick hits: off loading search, tweaking settings & why running crons is important
++ Ask your host about APC and how to make sure its set up correctly
++ Dare we look at the database? Easy changes that will help a lot!
- Monitoring Best practices – what to set up to make sure you know what is going on with your server – What if you get slashdoted? Recommendation on how to quickly take cover from a rhino.
This technical presentation shows you the best practices with EDB Postgres tools, that are designed to make database administration easier and more efficient:
● Tune a new database using Postgres Expert
● Set up streaming replication in EDB Postgres Enterprise Manager (PEM)
● Create a backup schedule in EDB Postgres Backup and Recovery
● Automatically failover with EDB Postgres Failover Manager
● Use SQL Profiler and Index Advisor to add indexes
The presentation also included a demonstration. To access the recording visit www.enterprisedb.com and access the webcast recordings section or email info@enterprisedb.com.
Web caching provides several benefits including bandwidth savings, reducing server load, and decreasing network latency. It works by intercepting HTTP requests and checking a local cache for the requested object before going to the origin server. Different caching approaches include proxy caching, reverse proxy caching, transparent proxy caching, and hierarchical caching. New techniques like adaptive caching and push caching aim to dynamically optimize cache placement near popular content or users.
The document provides information on performance testing processes and tools. It outlines 8 key steps: 1) create scripts, 2) create test scenarios, 3) execute load testing, 4) analyze results, 5) test reporting, 6) performance tuning, 7) communication planning, and 8) troubleshooting. It also discusses tools like LoadRunner, Controller, and Analysis for executing and analyzing tests. The document emphasizes having a thorough test process and communication plan to ensure performance testing is done correctly.
The document discusses performance tuning topics in WebLogic Server including tuning EJBs, JMS, web applications, web services, and JDBC. It provides guidance on understanding performance objectives such as anticipated users, requests, data, and target CPU utilization. It also discusses monitoring disk and CPU utilization, bottlenecks, and provides specific tuning recommendations for EJBs, MDB pools, stateless session bean pools, entity bean pools, and JMS.
The document discusses the WebLogic Server plugin which allows WebLogic Server to communicate with other web servers like Apache HTTP Server and Microsoft IIS. It specifically focuses on the Apache HTTP Server plugin, describing how it allows requests to be proxied from Apache to WebLogic Server so that dynamic functionality is handled by WebLogic Server. It provides instructions for installing the Apache plugin, which involves copying files and configuring Apache modules, and testing the installation.
Performance tuning in WebLogic Server involves tuning various components like EJBs, JMS, web applications, and web services. It is important to understand performance objectives like anticipated load and target CPU utilization. Monitoring disk, CPU, and network utilization helps identify bottlenecks. Common tuning techniques include optimizing pooling, caching, threading, and disabling unnecessary processing.
This session introduces tools that can help you analyze and troubleshoot performance with SharePoint 2013. This sessions presents tools like perfmon, Fiddler, Visual Round Trip Analyzer, IIS LogParser, Developer Dashboard and of course we create Web and Load Tests in Visual Studio 2013.
At the end we also take a look at some of the tips and best practices to improve performance on SharePoint 2013.
Implementing High Performance Drupal SitesShri Kumar
UniMity's substantial presence in Drupal Camp Deccan 11-11-11 in HYD. Audience were just applauding with gusto at the end of our presentation (How to build and maintain high performance websites)
This document discusses various techniques for optimizing proxy server performance, including:
1) Establishing baseline performance metrics and monitoring the server to identify bottlenecks. Common bottlenecks include incorrect settings, faulty resources, insufficient resources, or applications hogging resources.
2) Caching web content and using proxy arrays, network load balancing, or round robin DNS to distribute load across multiple proxy servers for improved performance and high availability.
3) Monitoring server components like CPU usage, memory usage, disk performance, and network bandwidth to identify optimization opportunities.
Building a Scalable Architecture for web appsDirecti Group
Visit http://wiki.directi.com/x/LwAj for the video. This is a presentation I delivered at the Great Indian Developer Summit 2008. It covers a wide-array of topics and a plethora of lessons we have learnt (some the hard way) over the last 9 years in building web apps that are used by millions of users serving billions of page views every month. Topics and Techniques include Vertical scaling, Horizontal Scaling, Vertical Partitioning, Horizontal Partitioning, Loose Coupling, Caching, Clustering, Reverse Proxying and more.
WebLogic Security provides a comprehensive security architecture for securing WebLogic Server applications. It includes features such as authentication, authorization, auditing, identity assertion, and supports standards like SAML, JAAS, and WS-Security. The security service can be used standalone or as part of an enterprise security solution. It aims to balance ease of use with customizability and provides both default and customizable security providers.
Slides on how to process large data, such as how to handle large amount of incoming frequent inputs, large Object or documents and how to provide data to massive amount of clients
As interest in cloud solutions and their use with enterprise applications has increased, MavenWire has taken a lead in implementing and benchmarking several instances of OTM using Amazon Web Services (AWS) and Elastic Cloud Compute (EC2). This presentation outlines how the instances were set up and configured; potential benefits of OTM in the cloud; cost and performance comparisons between the cloud and "traditional" server configurations; areas of concern and issues to be aware of when implementing OTM in the cloud. In addition, we will also outline what we believe the future direction of cloud OTM will be, as well as where we believe it is best suited to customer needs.
Scalable Text File Service with MongoDB (Intuit)MongoDB
Docstoc.com (founded in 2007, acquired by Intuit in 2013) is one of the largest online repositories of documents. A critical component of our product is our text file service, which delivers text documents to both humans and crawlers. In early 2013 this service, which was file system based, became a prohibitive bottleneck. To meet our scaling needs, we replaced it with one backed by a sharded MongoDB cluster. This talk will cover:
Our traffic load (5:1 bots:humans ratio) How we implemented the system in our SOA environment How MongoDB fit our use case out of the box How we load tested peak time traffic before hardware purchase How we loaded the system and how we rolled it out live Performance metrics and gains in stability and reliability
This document discusses unit testing in Groovy. It begins with reviewing basics of unit test structure and organization, including parts of a test like annotations and assertions, and different styles of organizing tests by class, feature, or fixture. The document then provides an example of a Groovy unit test for a game board, showing how to test for exceptions from invalid moves and assert that valid moves are properly marked on the board. It concludes with references for further reading on testing patterns and practices.
Optimizing web page performance involves minimizing round trips, request sizes, and payload sizes. This includes leveraging browser caching, combining and minifying assets, gzip compression, and optimizing images. Developer tools can identify optimization opportunities like unused resources and suggest techniques for faster loading and rendering.
Gowebbaby is a global web design company that has designed over 500 custom WordPress websites and 1000 blogs. There are several major issues that can cause a WordPress website to run slowly, including unwanted plugins, lack of caching, poor hosting, database optimization issues, and using an outdated version of WordPress. The document provides tips in each area to improve website speed, such as disabling unused plugins, installing a caching plugin, choosing a fast hosting provider, optimizing the database, and upgrading to the latest version.
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.
This document provides an overview of optimizing the performance of Joomla! websites. It discusses basic principles like using content delivery networks and combining files. It recommends preparing Joomla! with tools like Firebug and enabling caching. Specific optimizations for templates and content are covered, like image resizing and subdomain delivery. Hosting configuration tips include MySQL optimization and using a CDN. The document uses a case study example and concludes with thanks.
Robotframework Presentation - Pinoy Python Meetup 2011January12Franz Allan See
Robotframework is a keyword-driven testing framework for acceptance testing and automation. It uses Python and allows testing web applications using libraries like SeleniumLibrary. Tests are written using an easy syntax and can be run from the command line. Results include logs, reports, and pass/fail information. Custom libraries can also be created and distributed for use within Robotframework tests.
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.
This document discusses browser caching and techniques to improve website performance through caching. Browser caching involves temporarily storing recently visited web pages on a user's hard disk to load them faster during the same browsing session. Making fewer HTTP requests, adding expires headers, using content delivery networks, and leveraging browser caching directives like Cache-Control can help optimize caching. Common file types like CSS, JavaScript, images that should be cached are also mentioned. The document provides details on various caching strategies and their benefits like reducing bandwidth usage and loading websites faster.
Are you trying to improve your website performance? Read the blog to find some handpicked strategies. Implement these and note the difference! https://www.webguru-india.com/blog/tips-to-improve-your-website-performance/
The document provides best practices for optimizing frontend performance by reducing page load time. It discusses ways to reduce the number of HTTP requests, DNS lookups, redirects and duplicate scripts. It also recommends techniques like minifying assets, leveraging caching, prioritizing critical components, optimizing images and using content delivery networks.
Did you know that 80% to 90% of the user's page-load time comes from components outside the firewall? Optimizing performance on the front end (e.g. from the client side) can enhance the user experience by reducing the response times of your web pages and making them load and render much faster.
Improving web site performance and scalability while savingmdc11
This document discusses various techniques for improving web site performance and scalability while reducing costs, including:
1. Optimizing code to reduce HTTP requests and payload size.
2. Leveraging browser caching through content expiration, HTTP compression, and cache validation.
3. Minifying and consolidating CSS and JavaScript files.
4. Using a content delivery network (CDN) to distribute static assets globally.
5. Caching data and view state to reduce database queries and payload size.
This document discusses various techniques for improving the frontend performance of Drupal websites. It begins by introducing the speaker and describing the goals of the presentation. The bulk of the document then provides recommendations in three areas: backend server optimizations like caching, parallel downloads and gzip compression; tools for measuring performance; and frontend optimizations like minimizing requests, lazy loading images, and improving CSS and JavaScript. The document encourages proper performance diagnosis and defines goals before implementing solutions.
Web Performance, Scalability, and Testing Techniques - Boston PHP MeetupJonathan Klein
I gave this talk on 4/27/11 at the Boston PHP Meetup Group. It covers both server side and client side optimizations, as well as monitoring tools and techniques.
The document summarizes techniques for optimizing a website to improve performance. It discusses making fewer requests, using caching, minimizing request and response sizes, and optimizing browser rendering. Specific techniques mentioned include using caching headers, combining files, image sprites, and optimizing parallel downloads.
The document discusses various techniques for optimizing a website to improve performance. It covers topics like reducing the number of HTTP requests, enabling caching, minimizing response sizes through techniques like compression, and optimizing assets like images, JavaScript, and CSS. The key message is that web page performance is largely determined by how quickly the browser can download and process all the associated assets, so website optimization aims to reduce the load time through techniques targeting each step of rendering a page.
Reducing latency on the web with the Azure CDN - DevSum - SWAGMaarten Balliauw
Serving up content on the Internet is something our web sites do daily. But are we doing this in the fastest way possible? How are users in faraway countries experiencing our apps? Why do we have three webservers serving the same content over and over again? In this session, we’ll explore the Azure Content Delivery Network or CDN, a service which makes it easy to serve up blobs, videos and other content from servers close to our users. We’ll explore simple file serving as well as some more advanced, dynamic edge caching scenarios.
This document discusses optimizing the client-side performance of websites. It describes how reducing HTTP requests through techniques like image maps, CSS sprites, and combining scripts and stylesheets can improve response times. It also recommends strategies like using a content delivery network, adding expiration headers, compressing components, correctly structuring CSS and scripts, and optimizing JavaScript code and Ajax implementations. The benefits of a performant front-end are emphasized, as client-side optimizations often require less time and resources than back-end changes.
Dynamic Content Acceleration: Lightning Fast Web Apps with Amazon CloudFront ...Amazon Web Services
Traditionally, content delivery networks (CDNs) were known to accelerate static content. Amazon CloudFront has come a long way and now supports delivery of entire websites that include dynamic and static content. In this session, we introduce you to CloudFront’s dynamic delivery features that help improve the performance, scalability, and availability of your website while helping you lower your costs. We talk about architectural patterns such as SSL termination, close proximity connection termination, origin offload with keep-alive connections, and last-mile latency improvement. Also learn how to take advantage of Amazon Route 53's health check, automatic failover, and latency-based routing to build highly available web apps on AWS.
AJAX allows web pages to be updated asynchronously by exchanging data with a web server behind the scenes, allowing parts of a page to change without reloading the entire page. Tuenti uses AJAX extensively to update parts of their single-page application, caching content on both client and server sides for scalability. They route requests to different server farms based on client location and cache content to improve performance. Tuenti serves billions of images per day using multiple CDNs and pre-fetches content to minimize load times.
The document provides tips for building a scalable and high-performance website, including using caching, load balancing, and monitoring. It discusses horizontal and vertical scalability, and recommends planning, testing, and version control. Specific techniques mentioned include static content caching, Memcached, and the YSlow performance tool.
Support en anglais diffusé lors de l'événement 100% IA organisé dans les locaux parisiens d'Iguane Solutions, le mardi 2 juillet 2024 :
- Présentation de notre plateforme IA plug and play : ses fonctionnalités avancées, telles que son interface utilisateur intuitive, son copilot puissant et des outils de monitoring performants.
- REX client : Cyril Janssens, CTO d’ easybourse, partage son expérience d’utilisation de notre plateforme IA plug & play.
Fluttercon 2024: Showing that you care about security - OpenSSF Scorecards fo...Chris Swan
Have you noticed the OpenSSF Scorecard badges on the official Dart and Flutter repos? It's Google's way of showing that they care about security. Practices such as pinning dependencies, branch protection, required reviews, continuous integration tests etc. are measured to provide a score and accompanying badge.
You can do the same for your projects, and this presentation will show you how, with an emphasis on the unique challenges that come up when working with Dart and Flutter.
The session will provide a walkthrough of the steps involved in securing a first repository, and then what it takes to repeat that process across an organization with multiple repos. It will also look at the ongoing maintenance involved once scorecards have been implemented, and how aspects of that maintenance can be better automated to minimize toil.
Choose our Linux Web Hosting for a seamless and successful online presencerajancomputerfbd
Our Linux Web Hosting plans offer unbeatable performance, security, and scalability, ensuring your website runs smoothly and efficiently.
Visit- https://onliveserver.com/linux-web-hosting/
Are you interested in dipping your toes in the cloud native observability waters, but as an engineer you are not sure where to get started with tracing problems through your microservices and application landscapes on Kubernetes? Then this is the session for you, where we take you on your first steps in an active open-source project that offers a buffet of languages, challenges, and opportunities for getting started with telemetry data.
The project is called openTelemetry, but before diving into the specifics, we’ll start with de-mystifying key concepts and terms such as observability, telemetry, instrumentation, cardinality, percentile to lay a foundation. After understanding the nuts and bolts of observability and distributed traces, we’ll explore the openTelemetry community; its Special Interest Groups (SIGs), repositories, and how to become not only an end-user, but possibly a contributor.We will wrap up with an overview of the components in this project, such as the Collector, the OpenTelemetry protocol (OTLP), its APIs, and its SDKs.
Attendees will leave with an understanding of key observability concepts, become grounded in distributed tracing terminology, be aware of the components of openTelemetry, and know how to take their first steps to an open-source contribution!
Key Takeaways: Open source, vendor neutral instrumentation is an exciting new reality as the industry standardizes on openTelemetry for observability. OpenTelemetry is on a mission to enable effective observability by making high-quality, portable telemetry ubiquitous. The world of observability and monitoring today has a steep learning curve and in order to achieve ubiquity, the project would benefit from growing our contributor community.
Coordinate Systems in FME 101 - Webinar SlidesSafe Software
If you’ve ever had to analyze a map or GPS data, chances are you’ve encountered and even worked with coordinate systems. As historical data continually updates through GPS, understanding coordinate systems is increasingly crucial. However, not everyone knows why they exist or how to effectively use them for data-driven insights.
During this webinar, you’ll learn exactly what coordinate systems are and how you can use FME to maintain and transform your data’s coordinate systems in an easy-to-digest way, accurately representing the geographical space that it exists within. During this webinar, you will have the chance to:
- Enhance Your Understanding: Gain a clear overview of what coordinate systems are and their value
- Learn Practical Applications: Why we need datams and projections, plus units between coordinate systems
- Maximize with FME: Understand how FME handles coordinate systems, including a brief summary of the 3 main reprojectors
- Custom Coordinate Systems: Learn how to work with FME and coordinate systems beyond what is natively supported
- Look Ahead: Gain insights into where FME is headed with coordinate systems in the future
Don’t miss the opportunity to improve the value you receive from your coordinate system data, ultimately allowing you to streamline your data analysis and maximize your time. See you there!
Sustainability requires ingenuity and stewardship. Did you know Pigging Solutions pigging systems help you achieve your sustainable manufacturing goals AND provide rapid return on investment.
How? Our systems recover over 99% of product in transfer piping. Recovering trapped product from transfer lines that would otherwise become flush-waste, means you can increase batch yields and eliminate flush waste. From raw materials to finished product, if you can pump it, we can pig it.
RPA In Healthcare Benefits, Use Case, Trend And Challenges 2024.pptxSynapseIndia
Your comprehensive guide to RPA in healthcare for 2024. Explore the benefits, use cases, and emerging trends of robotic process automation. Understand the challenges and prepare for the future of healthcare automation
論文紹介:A Systematic Survey of Prompt Engineering on Vision-Language Foundation ...Toru Tamaki
Jindong Gu, Zhen Han, Shuo Chen, Ahmad Beirami, Bailan He, Gengyuan Zhang, Ruotong Liao, Yao Qin, Volker Tresp, Philip Torr "A Systematic Survey of Prompt Engineering on Vision-Language Foundation Models" arXiv2023
https://arxiv.org/abs/2307.12980
Implementations of Fused Deposition Modeling in real worldEmerging Tech
The presentation showcases the diverse real-world applications of Fused Deposition Modeling (FDM) across multiple industries:
1. **Manufacturing**: FDM is utilized in manufacturing for rapid prototyping, creating custom tools and fixtures, and producing functional end-use parts. Companies leverage its cost-effectiveness and flexibility to streamline production processes.
2. **Medical**: In the medical field, FDM is used to create patient-specific anatomical models, surgical guides, and prosthetics. Its ability to produce precise and biocompatible parts supports advancements in personalized healthcare solutions.
3. **Education**: FDM plays a crucial role in education by enabling students to learn about design and engineering through hands-on 3D printing projects. It promotes innovation and practical skill development in STEM disciplines.
4. **Science**: Researchers use FDM to prototype equipment for scientific experiments, build custom laboratory tools, and create models for visualization and testing purposes. It facilitates rapid iteration and customization in scientific endeavors.
5. **Automotive**: Automotive manufacturers employ FDM for prototyping vehicle components, tooling for assembly lines, and customized parts. It speeds up the design validation process and enhances efficiency in automotive engineering.
6. **Consumer Electronics**: FDM is utilized in consumer electronics for designing and prototyping product enclosures, casings, and internal components. It enables rapid iteration and customization to meet evolving consumer demands.
7. **Robotics**: Robotics engineers leverage FDM to prototype robot parts, create lightweight and durable components, and customize robot designs for specific applications. It supports innovation and optimization in robotic systems.
8. **Aerospace**: In aerospace, FDM is used to manufacture lightweight parts, complex geometries, and prototypes of aircraft components. It contributes to cost reduction, faster production cycles, and weight savings in aerospace engineering.
9. **Architecture**: Architects utilize FDM for creating detailed architectural models, prototypes of building components, and intricate designs. It aids in visualizing concepts, testing structural integrity, and communicating design ideas effectively.
Each industry example demonstrates how FDM enhances innovation, accelerates product development, and addresses specific challenges through advanced manufacturing capabilities.
The DealBook is our annual overview of the Ukrainian tech investment industry. This edition comprehensively covers the full year 2023 and the first deals of 2024.
Kief Morris rethinks the infrastructure code delivery lifecycle, advocating for a shift towards composable infrastructure systems. We should shift to designing around deployable components rather than code modules, use more useful levels of abstraction, and drive design and deployment from applications rather than bottom-up, monolithic architecture and delivery.
Paradigm Shifts in User Modeling: A Journey from Historical Foundations to Em...Erasmo Purificato
Slide of the tutorial entitled "Paradigm Shifts in User Modeling: A Journey from Historical Foundations to Emerging Trends" held at UMAP'24: 32nd ACM Conference on User Modeling, Adaptation and Personalization (July 1, 2024 | Cagliari, Italy)
7 Most Powerful Solar Storms in the History of Earth.pdfEnterprise Wired
Solar Storms (Geo Magnetic Storms) are the motion of accelerated charged particles in the solar environment with high velocities due to the coronal mass ejection (CME).
Mitigating the Impact of State Management in Cloud Stream Processing SystemsScyllaDB
Stream processing is a crucial component of modern data infrastructure, but constructing an efficient and scalable stream processing system can be challenging. Decoupling compute and storage architecture has emerged as an effective solution to these challenges, but it can introduce high latency issues, especially when dealing with complex continuous queries that necessitate managing extra-large internal states.
In this talk, we focus on addressing the high latency issues associated with S3 storage in stream processing systems that employ a decoupled compute and storage architecture. We delve into the root causes of latency in this context and explore various techniques to minimize the impact of S3 latency on stream processing performance. Our proposed approach is to implement a tiered storage mechanism that leverages a blend of high-performance and low-cost storage tiers to reduce data movement between the compute and storage layers while maintaining efficient processing.
Throughout the talk, we will present experimental results that demonstrate the effectiveness of our approach in mitigating the impact of S3 latency on stream processing. By the end of the talk, attendees will have gained insights into how to optimize their stream processing systems for reduced latency and improved cost-efficiency.
Advanced Techniques for Cyber Security Analysis and Anomaly DetectionBert Blevins
Cybersecurity is a major concern in today's connected digital world. Threats to organizations are constantly evolving and have the potential to compromise sensitive information, disrupt operations, and lead to significant financial losses. Traditional cybersecurity techniques often fall short against modern attackers. Therefore, advanced techniques for cyber security analysis and anomaly detection are essential for protecting digital assets. This blog explores these cutting-edge methods, providing a comprehensive overview of their application and importance.
3. Best Practices Optimizing caching — keeping your application's data and logic off the network altogether Minimizing round-trip times — reducing the number of serial request-response cycles Minimizing request size — reducing upload size Minimizing payload size — reducing the size of responses, downloads, and cached pages Optimizing browser rendering — improving the browser's layout of a page
4. Optimize caching HTTP caching allows these resources to be saved, or cached, by a browser or proxy. Once a resource is cached, a browser or proxy can refer to the locally cached copy instead of having to download it again on subsequent visits to the web page. Thus caching is a double win: you reduce round-trip time by eliminating numerous HTTP requests for the required resources, and you substantially reduce the total payload size of the responses. Besides leading to a dramatic reduction in page load time for subsequent user visits, enabling caching can also significantly reduce the bandwidth and hosting costs for your site.
5. Optimize caching Leverage browser caching - Setting an expiry date or a maximum age in the HTTP headers for static resources allows the browser to load previously downloaded resources from local disk rather than over the network. Leverage proxy caching - Enabling public caching in the HTTP headers for static resources allows the browser to download resources from a nearby proxy server rather than from a remoter origin server.
6. Minimize round-trip times Round-trip time (RTT) is the time it takes for a client to send a request and the server to send a response over the network, not including the time required for data transfer. That is, it includes the back-and-forth time on the wire, but excludes the time to fully download the transferred bytes (and is therefore unrelated to bandwidth). For example, for a browser to initiate a first-time connection with a web server, it must incur a minimum of 3 RTTs: 1 RTT for DNS name resolution; 1 RTT for TCP connection setup; and 1 RTT for the HTTP request and first byte of the HTTP response. Many web pages require dozens of RTTs.
7. Minimize round-trip times Minimize DNS lookups - Reducing the number of unique hostnames from which resources are served cuts down on the number of DNS resolutions that the browser has to make, and therefore, RTT delays. Minimize redirects - Minimizing HTTP redirects from one URL to another cuts out additional RTTs and wait time for users. Combine external JavaScript - Combining external scripts into as few files as possible cuts down on RTTs and delays in downloading other resources.
8. Minimize request size Every time a client sends an HTTP request, it has to send all associated cookies that have been set for that domain and path along with it. Most users have asymmetric Internet connections: upload-to-download bandwidth ratios are commonly in the range of 1:4 to 1:20. This means that a 500-byte HTTP header request could take the equivalent time to upload as 10 KB of HTTP response data takes to download. The factor is actually even higher because HTTP request headers are sent uncompressed. In other words, for requests for small objects (say, less than 10 KB, the typical size of a compressed image), the data sent in a request header can account for the majority of the response time.
9. Minimize request size Minimize cookie size - Keeping cookies as small as possible ensures that an HTTP request can fit into a single packet. Serve static content from a cookieless domain - Serving static resources from a cookieless domain reduces the total size of requests made for a page.
10. Minimize payload size The amount of data sent in each server response can add significant latency to your application, especially in areas where bandwidth is constrained. In addition to the network cost of the actual bytes transmitted, there is also a penalty incurred for crossing an IP packet boundary. (The maximum packet size, or Maximum Transmission Unit (MTU), is 1500 bytes on an Ethernet network, but varies on other types of networks.) Unfortunately, since it's difficult to know which bytes will cross a packet boundary, the best practice is to simply reduce the number of packets your server transmits, and strive to keep them under 1500 bytes wherever possible.
11. Minimize payload size Enable gzip compression - Compressing resources with gzip can reduce the number of bytes sent over the network. Remove unused CSS - Removing or deferring style rules that are not used by a document avoid downloads unnecessary bytes and allow the browser to start rendering sooner. Minify JavaScript - Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
12. Minimize payload size Defer loading of JavaScript - Deferring loading of JavaScript functions that are not called at startup reduces the initial download size, allowing other resources to be downloaded in parallel, and speeding up execution and rendering time. Optimize images - Properly formatting, sizing, and losslessly compressing images can save many bytes of data. Serve resources from a consistent URL - It's important to serve a resource from a unique URL, to eliminate duplicate download bytes and additional RTTs.
13. Optimize browser rendering Once resources have been downloaded to the client, the browser still needs to load, interpret, and render HTML, CSS, and Javascript code. By simply formatting your code and pages in ways that exploit the characteristics of current browsers, you can enhance performance on the client side.
14. Optimize browser rendering Use efficient CSS selectors - Avoiding inefficient key selectors that match large numbers of elements can speed up page rendering. Avoid CSS expressions - CSS expressions degrade rendering performance; replacing them with alternatives will improve browser rendering for IE users. This best practices in this section apply only to Internet Explorer 5 through 7, which support CSS expressions. Put CSS in the document head - Moving inline style blocks and <link> elements from the document body to the document head improves rendering performance. Specify image dimensions - Specifying a width and height for all images allows for faster rendering by eliminating the need for unnecessary reflows and repaints.
15. Tips and Tricks Remove all 404 resources. Access logs to check 404 resources. grep 'HTTP/1.1" 404' access.log Put CSS at the top, and CSS first before JS Put JS at the end of the page Set a reasonable buffer size for JSP for eager loading if possible divisible by 1500 bytes. <%@ page buffer="36kb" %>
16. Tips and Tricks Enable GZIP using GZIP filter for text content types Pre GZIP Text static resources (Custom ant task) Compress images Page speed provides you with the compressed image https://developer.yahoo.com/yslow/smushit/ Minify JavaScript, CSS or even dynamic (JSP) contents YUI compressor from Yahoo! Closure Tools from Google Combining of external JavaScript and CSS resources Custom ant tasks CSS sprites http://csssprites.com/
17. Tips and Tricks Browser caching using http header Cache-Control response header with at least one month expiration Ideally for static resources, and can be done also on get Ajax calls Caching of asynchronous call results (page scope) Progressive loading using Ajax Deferred loading
18. Tips and Tricks Use performance analyzer tools Yslow! from Yahoo! Page speed from Google
19. Possible UI Performance Drawback Maintainability Support for JavaScript debugging is now impossible Minify JavaScript and CSS resources Combining of external JavaScript and CSS resources
29. Common Profiling Views Self Tree Telemetry CPU Duration Per Method Call Tree CPU Load Memory Size per object of type Dominator Tree Memory Load Thread Duration per thread (---) (---)
30. Heap Analysis Quick recap of the Java Memory Model Learning to generate heap dumps (hprof) Setting up the Eclipse Memory Analyzer Tool The 3 basic reports – Overview, Leak Suspects, and Top Components The 'other' features
31. Java Memory Model Heap Young GEn Par Eden Space Par Survivor Space CMS Old Gen Non-Heap Code Cache CMS Perm Gen More info: http://download.oracle.com/javase/6/docs/ ... ...technotes/guides/management/jconsole.html
32. Generate HPROF -XX:+HeapDumpOnOutOfMemoryError jmap -heap:format=b <pid> jmap.exe -dump:format=b,file=HeapDump.hprof <pid> More info : http://wiki.eclipse.org/index.php/MemoryAnalyzer#Getting_a_Heap_Dump
33. Setup Eclipse MAT Home Page : http://www.eclipse.org/mat/ Download Page : http://www.eclipse.org/mat/downloads.php Quick Start: http://wiki.eclipse.org/index.php/MemoryAnalyzer
39. Last Tips & Tricks 1.) Premature Optmization is the source of all evil 2.) Validate Assumptions 3.) Avoid blind fixes as much as possible 4.) Differentiate between CPU & IO 5.) Work Together
40. Thank You Questions? [email_address] http://devworks.devcon.ph http://devcon.ph http://facebook.com/DevConPH http://twitter.com/DevConPH http://twitter.com/franz_see
Editor's Notes
Eden Space: The pool from which memory is initially allocated for most objects. Survivor Space: The pool containing objects that have survived the garbage collection of the Eden space. Tenured Generation: The pool containing objects that have existed for some time in the survivor space. Permanent Generation: The pool containing all the reflective data of the virtual machine itself, such as class and method objects. With Java VMs that use class data sharing, this generation is divided into read-only and read-write areas. Code Cache: The HotSpot Java VM also includes a code cache, containing memory that is used for compilation and storage of native code. Survivor Space: The pool containing objects that have survived the garbage collection of the Eden space.