We all know Mobile is different, but by how much?
This presentation attempts to quantify the difference between mobile and non-mobile, focusing on CPU, network and browser differences.
Testing Mobile App Performance MOT EdinburghDoug Sillars
This document discusses optimizing mobile application performance through testing. It begins by explaining that fast performance is a human perception, with delays of 100ms feeling instantaneous, 1s still allowing for an uninterrupted train of thought, and 10s being the limit to keep focus. It then discusses benchmarking applications to identify issues, making optimizations, testing fixes, and launching optimized versions. Specific techniques covered include profiling network conditions, testing on low-end devices, setting speed goals, optimizing JSON responses, image sizes/formats/quality, and caching. The overall message is that thorough testing across devices and networks is needed to optimize mobile application speed for the best user experience.
This document discusses mobile application performance testing. It begins by explaining how fast is perceived by humans, with 100ms seen as instant, 1s as an acceptable delay, and 10s as the limit to maintain focus. It then discusses various performance studies showing user frustration and abandonment rates related to load speeds. The document goes on to describe benchmarking applications, identifying fixes, optimizing through various techniques, and retesting. Specific areas covered in more depth include optimizing images through size, quality, format, caching and lazy loading. Other topics include content delivery networks, animating GIFs, and network information.
This document summarizes Doug Sillars' presentation on delivering fast and beautiful images and video for mobile. It discusses 4 simple image optimizations: quality, format, sizing, and lazy loading. It also covers optimizing video delivery by reducing file sizes, only downloading video that will be displayed, and being mindful of data costs and network conditions for mobile users. The presentation provided examples and metrics on how these optimizations can significantly improve page load speeds and reduce data usage.
This document discusses optimizing images and video for fast delivery on mobile websites. It begins by explaining that fast loading is a human perception based on time thresholds, with 100ms perceived as instant. The document then outlines 4 simple image optimizations: quality, format, sizing, and lazy loading. It provides examples of each optimization and data on real-world usage. Additional topics discussed include responsive images, animated GIFs, save-data considerations, and base64 encoding. The overall message is that images make up most web content and several techniques can significantly improve performance and user experience.
Imagesandvideo stockholm fastandbeautifulDoug Sillars
This document discusses 4 simple optimizations that can be made to images on websites to improve performance: 1) Reducing image quality, 2) Using optimized file formats like JPEG, WebP and SVG, 3) Resizing images to actual display size, and 4) Implementing lazy loading so images outside the viewport are not downloaded. It provides examples and data on how each technique can significantly reduce data usage and improve load times.
Mobile and web performance is critical for user experience. Testing tools like WebPageTest and Video Optimizer can identify optimization opportunities such as slow delivery speeds, large files, and inefficient content. Key best practices include using content delivery networks to cache content globally, compressing text and images, resizing images appropriately, and choosing optimal video bitrates. Adhering to these performance best practices can significantly improve load times and user engagement.
Talk delivered in New York, Sep 19, 2016 during an O'Reilly meetup before Velocity Conference about Web Performance and Images, including HTTP Client Hints and new Image Formats
This document discusses techniques for improving the performance of mobile web applications. It addresses reducing the number of requests, reducing file sizes, and increasing parallelism. Specifically, it recommends bundling JavaScript and CSS files, inlining small resources, using adaptive images and JavaScript, minification, compression, and domain sharding. It also suggests techniques like parallelizing service calls and downloads, delaying unnecessary downloads, and eager loading of static assets. The overall goal is to reduce load times and improve the user experience on mobile networks.
Doug Sillars presented four simple optimizations for delivering fast and beautiful images and video on mobile: 1) reduce image quality, 2) use optimized formats like WebP and SVG, 3) size images appropriately, and 4) lazy load images below the fold. He demonstrated how these techniques can significantly reduce page load times and data usage. Sillars also discussed best practices for video delivery and alternatives to animated GIFs that can reduce file sizes substantially. Throughout, he provided real-world examples and tools to help optimize multimedia content for mobile performance.
James D Bloom is a mobile web expert who focuses on high performance, reliability, wide device support, and keeping things simple. In his talk, he discusses why performance is important for mobile websites and provides strategies to improve network performance through reducing requests and bytes, increasing bandwidth efficiency, and reducing latency. He also discusses ways to improve software performance through more parallelism, faster page rendering, and faster page interaction.
This document summarizes a presentation about extreme performance for mobile web. It discusses understanding the mobile web ecosystem today, focusing on performance differences for mobile and tools to measure performance. It also covers HTML5 APIs and specifications for performance as well as tips for extreme performance including optimizing the network layer, reducing redirects and stop signs, prioritizing responsive design, minimizing above-the-fold content, loading CSS asynchronously, treating JavaScript as optional, and ensuring fast user interfaces. The overall message is that perception of performance is more important than actual load times and focuses on techniques to optimize for mobile.
(A presentation given at Velocity Conference, London 2012)
Mobile Optimization is complicated, and there’s no single silver bullet. Many different bottlenecks take their toll along the way, and while some have a huge impact, others still add up. In this presentation, we’ll take a website and optimize it step by step. In each step we’ll touch on a problem, discuss how to solve it – perhaps in multiple ways – and show the effect of the solution. In the process, we’ll also touch on topics such as measuring mobile performance, differences between browsers, and which pitfalls are common
The document provides an agenda and summary for a talk on how the physical world is meeting the web through various technologies. The topics discussed include mobile and IoT, the Physical Web, Progressive Web Apps, and connecting through web APIs. Specific emerging APIs that allow access to device sensors and hardware are demonstrated, such as ambient light detection, web Bluetooth, and web audio. The talk aims to show how the web is becoming a universal platform to enable new experiences at the intersection of the digital and physical worlds.
Jon Arne Sæterås - Give Responsive Design a mobile performance boost DevConFu
Responsive Web Design (RWD) is a giant leap in the right direction for web on mobile devices. However, RWD is just a small, part of the big picture. What we really want is for the whole value chain to be responsive, not only in the browser., There are a vast number of frameworks and tools on the webs for implementing RWD. Most of these provide a great starting point for mobile ventures. However, there are not so many tools out the to help you with the rest of the value chain. Especially tools that are easy to use and provide a relatively small footprint for front end developers., This talk will explore possibilities you get when you combine the best practices from the client side, with best practices from the server side. Sometimes this technique is called RESS, or Adaptive Design. The talk will contain coding, code samples and best practices based on popular frameworks and tools for Adaptive Design that combines client side and server side techniques. Results, effects and gains in terms of performance will also be documented and exemplified., The audience will gain insights into how their next project can perform even better in mobile devices and smart ways to reduce data traffic, increase speed and be more future friendly by utilizing the server for heavy-lifting.
Performance Implications of Mobile Design (Perf Audience Edition)Guy Podjarny
(This version of the presentation is oriented at a web performance audience, and includes some mobile design 101 content)
Mobile Web Design is complicated, and several design paradigms have been created to help deal with the challenges the mobile landscape creates.
Amongst other implications, each paradigm also carries its own performance pitfalls, which can turn a well designed site into a horribly slow user experience.
This presentation covers the top design paradigms - Dedicated Websites (mdot) and Responsive Web Design, gives some background on each, and digs into the performance do's and don'ts for your design of choice.
Measuring Web Performance (HighEdWeb FL Edition)Dave Olsen
Today, a web page can be delivered to desktop computers, televisions, or handheld devices like tablets or phones. While a technique like responsive design helps ensure that our web sites look good across that spectrum of devices we may forget that we need to make sure that our web sites also perform well across that same spectrum. More and more of our users are shifting their Internet usage to these more varied platforms and connection speeds with some moving entirely to mobile Internet.
In this session we’ll look at the tools that can help you understand, measure and improve the web performance of your web sites and applications. The talk will also discuss how new server-side techniques might help us optimize our front-end performance. Finally, since the best way to test is to have devices in your hand, we’ll discuss some tips for getting your hands on them cheaply.
This presentation builds upon Dave’s “Optimization for Mobile” chapter in Smashing Magazine’s “The Mobile Book.”
This talk was given at HighEdWeb Florida.
Mobile Performance Testing - Testing the ServerXBOSoft
This document discusses testing the server side performance of mobile websites. It begins with introducing the importance and challenges of mobile performance testing. It then outlines an agenda covering differences between mobile and desktop usage, steps to take in testing including simple comparison, performance and load tests, and optimization strategies. Specifically, it recommends starting with basic tests to compare a site on desktop vs mobile, then using tools like WebPagetest to analyze performance, and finally gradually increasing load on servers. The overall goal is to help organizations prevent mobile performance issues through early and frequent testing.
This document discusses optimizing web performance for mobile devices. It covers the current mobile web ecosystem, importance of performance, tools for measuring performance, optimizing initial loading and perception, and responsiveness. The key points discussed are understanding the diversity of mobile browsers and platforms, keeping content above the fold loading within 1 second, using tools like navigation timing API to measure performance, avoiding redirects and unnecessary resources, and ensuring smooth scrolling and responsiveness.
Future of CDN - Next 10 Years - Ahmet Ozalp, Akamai Technologies - DigiWorld ...IDATE DigiWorld
The document summarizes a presentation about the future of content delivery networks (CDNs) over the next 10 years. The presentation makes several predictions, including that traffic will grow exponentially as more content like video moves online, connected devices will drive complexity through spikes in demand, CDN architectures will evolve to move content closer to the edge, and cooperation between CDNs and telcos will be necessary to succeed in the future market. Overall, the CDN market is expected to have healthy growth over the next 10 years as services become more cost effective and enable business innovation.
Tablettes : les usages outstore et instore pour les marquesDagobert
La tablette, un nouveau point de contact en magasin….mais aussi un moyen d’atteindre le consommateur dans son quotidien.
Dagobert vous livre quelques pistes pour tirer profit des avantages de la tablette et ainsi démocratiser l’écran interactif en point de vente ainsi que 6 moyens d’accompagner le consommateur tout en mobilité, jour après jour.
Google was founded in 1996 as a research project by PhD students Larry Page and Sergey Brin at Stanford University. They launched Google in 1998 with $100,000 in funding and grew it rapidly, creating language versions in 2000 and services like Google Images, Froogle, and Google Maps through the early 2000s. By acquiring YouTube in 2006, Google had become a global technology giant with over 50,000 employees and $50 billion in annual sales, maintaining the largest share of the search engine market.
This document discusses financial reporting, professional judgment, and professional skepticism. It provides principles for preparers and auditors when exercising professional judgment in financial reporting. Preparers and auditors must gather and analyze all relevant information, assess accounting guidance, and properly document their judgments. Auditors must also appropriately assess and challenge the client's judgments. Regulators review financial statements and auditor documentation to evaluate the professional judgments made. The document concludes with case studies that illustrate issues like a lack of management assumptions verification, risk of management override of controls, and unreliable evidence provided by management.
Evolucion de la informatica y su aplicacionJessy Acosta
Este documento resume la evolución de la informática desde sus orígenes hasta la quinta generación. Comienza con las primeras máquinas mecánicas y electromecánicas para cálculos, luego pasa a las primeras generaciones de ordenadores basadas en válvulas de vacío y transistores. Posteriormente describe el desarrollo de los circuitos integrados y los microprocesadores, concluyendo con la era de los ordenadores personales y las redes como Internet.
Introducción a la ciencia e ingeniería de los materiales william d. callist...elkinn
Este documento describe los detalles de un proyecto de construcción de una carretera. Explica los materiales que se usarán, como concreto y asfalto, el trazado de la carretera y los posibles impactos ambientales. También incluye un cronograma tentativo de la construcción y el presupuesto estimado para completar el proyecto.
El documento resume los principales aspectos de la Convención Marco de las Naciones Unidas sobre el Cambio Climático (CMNUCC) y los esfuerzos internacionales para abordar el cambio climático antropogénico. Explica que los gases de efecto invernadero causados por el hombre, especialmente el dióxido de carbono proveniente de la quema de combustibles fósiles, están calentando el planeta. También describe la creación del IPCC, el Protocolo de Kioto, y los acuerdos de Copenhague y Cancún para reducir las
IntroduccióN A La ClíNica PsicolóGica Con NiñOsguesta14865ae
Este documento resume la historia de la paidopsiquiatría desde sus inicios en el siglo XVIII hasta principios del siglo XX. Aborda temas como el tratamiento de niños con discapacidades, la clasificación de trastornos mentales en la infancia y la evolución del concepto de esquizofrenia infantil.
Retail refers to the last stage of moving goods to consumers. Retailers sell goods in small quantities directly to consumers. In India, retail is dominated by the unorganized sector, with the organized sector experiencing rapid growth. Modern retail formats like shopping malls, department stores, and hypermarkets are growing, while traditional formats like weekly markets and village fairs remain important. Location, customer experience, and merchandise are key factors for success in apparel retail.
This weekly planning document outlines the schedule and objectives for a class from June 18 to 25, 2012. The topic is the operative system, specifically identifying the components of the Microsoft Windows control panel and their functions. Class activities include listening to explanations, consulting online blogs, investigating the control panel, writing summaries, and drawing the control panel. Homework includes bringing pictures of control panels, making a speech and chart on computer environmental pollution, and writing a summary on the same topic. Students will be evaluated through diagnostics, formative participation, individual work, proper use of the laboratory, speeches, charts, and summaries.
The document outlines a to-do list for January 22nd, including returning graded work, checking a math assignment and turning it in, and completing at least two flashcard drills or timed tests.
En sammanfattning från mitt och David Alers frukostseminarium på Cloud Nine den 5 Oktober 2012. Från basics till framtid, med praktiska exempel på genomförande.
Worcester Food & Active Living Policy Council: An Introductionesheehancastro
This document summarizes a food security initiative in Worcester, MA from 2007-2012. It was funded by the Health Foundation of Central MA and brought together various organizations to address hunger through school meals, SNAP outreach, cooking classes, farmers markets, and gardening. Key successes included expanding school breakfast, increasing SNAP participation, graduating over 100 adults from cooking classes, and establishing new school and community gardens. Ongoing work of the Worcester Food & Active Living Policy Council is described to engage partners and address issues like urban agriculture and active transportation.
Infrastrukturen til fremtidens løsninger
Kravene til din kablede infrastruktur øges hele tiden på grund af nye hastigheder og nye applikationer. Hastigheder på 10/40 Gbit Ethernet på kobber og 40/100/400 Gbit på fiber stiller krav til din installationen på samme måde som nye applikationer gør det. Det er bl.a. applikationer som Distribueret sensor netværk og LED belysning, indendørs mobildækning og nye PoE over WLAN standarder samt bygningsstyring.
This is a presentation on the evolution of the public network, including POTS, ATM, SONET, DWDM, RPR, Ethernet, and other technologies. Explains how needs and design principles have changed over time and compares the different technologies. A full research paper is available at http://www.ericgoldman.name
The document discusses how the Akamai Intelligent Internet Platform uses a global network of servers located at the edge of the internet to deliver web content and applications. It helps websites improve performance by optimizing routing, caching content closer to users, compressing files, pre-fetching resources, and offloading processing from origin servers. Case studies show how Akamai solutions helped companies like Best Buy, Urban Outfitters, and Live Nation improve performance, manage traffic spikes, and increase sales.
The document discusses how Akamai's Intelligent Internet Platform addresses challenges posed by increasingly sophisticated websites and rising consumer expectations for faster load times and richer content. It does this through a global network of servers that optimize routing, cache content closer to users, compress data and prefetch resources to accelerate page loads. Case studies show how Akamai has helped customers like Best Buy and Urban Outfitters improve performance, scale to handle traffic spikes and reduce infrastructure costs.
With so many new line of products and features from MikroTik, choosing one might be bit confusing. This topic will cover how to choose the right devices for your network!
This document summarizes So#bank's WiFi strategy and initiatives over time. It discusses expanding their public and residential WiFi networks from 20k access points in 2010 to 450k access points currently. It also covers improving WiFi quality through technologies like 802.11ac, increasing speeds to compete with LTE, optimizing WiFi backhaul, and implementing seamless connectivity between WiFi and cellular networks. Finally, it proposes expanding 5GHz spectrum for WiFi and providing new location-based and cashless payment services on WiFi networks in preparation for the 2020 Tokyo Olympics.
This document discusses using 5G cellular networks for transmitting live video from onboard racing cars. It notes that 5G networks are being rapidly deployed at racetracks and could provide comparable bandwidth to private radio networks at lower cost. However, there are still technical challenges to overcome like signal drops, modem overheating issues, and complexities obtaining suitable international data plans. The document describes initial testing of transmitting live video from a car driving in London over 5G networks, but issues were encountered with unstable connections. More work is still needed to optimize protocols for the challenging 5G environment and shared network resources at crowded events.
See Dr. Tom Leighton's Edge Presentation: http://www.akamai.com/html/custconf/edgetv.html#tom-leighton
The Akamai Edge Conference is a gathering of the industry revolutionaries who are committed to creating leading edge experiences, realizing the full potential of what is possible in a Faster Forward World. From customer innovation stories, industry panels, technical labs, partner and government forums to Web security and developers' tracks, there's something for everyone at Edge 2013.
Learn more at http://www.akamai.com/edge
Elfiq Multiple Is Ps For Cost Control & PerformanceBryanHildebrand
The document discusses how organizations can use multiple internet service providers (ISPs) to improve performance and control costs. It notes that common issues with a single ISP include outages averaging 1.7 per month and link saturation that hurts productivity. The solution presented is to use Elfiq Networks' link balancing technology to distribute traffic across multiple cheaper ISPs, improving reliability and throughput while reducing costs by up to 30% with payback in around 6 months. Elfiq models are presented ranging from small office to large enterprise solutions.
Accelerating Apache Spark Shuffle for Data Analytics on the Cloud with Remote...Databricks
The increasing challenge to serve ever-growing data driven by AI and analytics workloads makes disaggregated storage and compute more attractive as it enables companies to scale their storage and compute capacity independently to match data & compute growth rate. Cloud based big data services is gaining momentum as it provides simplified management, elasticity, and pay-as-you-go model.
LTE and DPI technologies are essential for managing mobile broadband networks due to increasing bandwidth demands outpacing supply growth. DPI allows for prioritization of real-time traffic like voice and video, security measures, and new revenue opportunities through traffic analysis and service differentiation. It provides a "smart pipe" for optimized network efficiency and subscriber services. Rapid adoption of smartphones, internet video, and mobile applications is driving network traffic growth that LTE and DPI solutions can help address.
As enterprises and their IT providers seek to harness the potential of cloud computing, their networks must be equipped with five essential elements:
1. High-bandwidth/low-latency switching
2. Convergence to Ethernet
3. Massive virtualization for agile workloads
4. Scalable management
5. Advanced energy efficiency
This document discusses Akamai Technologies and its evolution from academic research at MIT to a global cloud delivery platform. It outlines Akamai's role in managing complex modern web presences and addresses three grand challenges facing the internet - performance, media delivery, and security. For performance, it discusses ensuring fast delivery to any device. For media, it discusses enabling high-quality video delivery at massive scale. And for security, it discusses protecting from increasingly sophisticated cyber attacks. The document highlights how Akamai's global server network and technologies help customers meet these challenges.
When choosing a new Wi-Fi router, you should consider the Wi-Fi standard, range, and features that affect throughput. Newer standards like 802.11ax (Wi-Fi 6) provide faster speeds. Built-in technologies such as MU-MIMO, Beamforming, and OFDMA can increase speeds by allowing simultaneous connections from multiple devices. Gigabit Ethernet ports and dual-band 2.4GHz and 5GHz Wi-Fi bands ensure maximum performance for a variety of devices and tasks. Evaluating these factors will help you select a router suited to your needs and environment.
Akamai 如何幫您的客戶用網站賺錢 how to monetize your site零壹科技股份有限公司
The document discusses how Akamai's Dynamic Site Accelerator (DSA) can help websites address performance, scalability, security, and availability issues. DSA leverages Akamai's global edge network to speed page loading, optimize caching, improve TCP performance, and offload website infrastructure. It provides an example of how DSA helped Cathay Pacific boost online bookings and reduce infrastructure costs. In summary, DSA leverages Akamai's edge network to improve website performance, scalability, and availability while reducing infrastructure needs and costs.
Serverless Security: What's Left To ProtectGuy Podjarny
Serverless means handing off server management to the cloud platforms – along with their security risks. With the “pros” ensuring our servers are patched, what’s left for application owners to protect? As it turns out, quite a lot.
This talk discusses the aspects of security serverless doesn’t solve, the problems it could make worse, and the tools and practices you can use to keep yourself safe.
Required audience experience
Basic knowledge of how FaaS and Serverless works
Objective of the talk
As many companies explore the world of serverless, it’s important they understand the aspects of security this new world helps them with, and the ones they need to care more about. This talk will provide a framework to understand how to prioritise and approach security for Serverless apps.
Guy Podjarny breaks into a vulnerable serverless application and exploits multiple weaknesses, helping better understand some of the mistakes people make, their implications, and how to avoid them.
Video available on: https://www.infoq.com/presentations/serverless-security-2017
Serverless Security: What's Left to Protect?Guy Podjarny
Slides from my ServerlessConf Austin 2017.
Serverless means handing off server management to the cloud platforms - along with their security risks. With the “pros” ensuring our servers are patched, what’s left for application owners to protect?
As it turns out, quite a lot. This talk discusses the aspects of security serverless doesn’t solve, the problems it could make worse, and the tools and practices you can use to keep yourself safe
Some of the very things that make JavaScript awesome can also leave it exposed. Guy Podjarny and Danny Grander walk through some sample security flaws unique to Node’s async nature and surrounding ecosystem (or especially relevant to it)—e.g., memory leaks via the buffer object, ReDoS and other algorithmic DoS attacks (which impact Node due to its single-threaded nature), and timing attacks leveraging the EventLoop—and show how these could occur in your own code or in npm dependencies.
npm packages are awesome, but also introduce risk.
This presentation explains how packages may introduce known vulnerabilities into your application, explains their impact, and most importantly, shows how to protect yourself.
The few slides were complemented by running several vulnerability exploits against the vulnerable demo app Goof from here: https://github.com/Snyk/goof
Stranger Danger: Securing Third Party Components (Tech2020)Guy Podjarny
Building software today involves more assembly than actual coding. Much of our code is in fact pulled in open source packages, and the applications heavily rely on surrounding third party binaries. These third parties make us more productive - but they also introduce an enormous risk. Each third party component is a potential source of vulnerabilities or malicious code, each third party service a potential door into our system.
This talk contains more information about this risk, create a framework for digesting and tackling it, and lists a myriad of tools that can help.
High Performance Images: Beautiful Shouldn't Mean Slow (Velocity EU 2015)Guy Podjarny
The web is becoming increasingly image rich. Between high-resolution mobile screens, Pinterest-style design, and big background graphics, the average image payload has more than doubled in the last three years. While visually appealing, these images carry a substantial performance cost, and — if not optimized correctly — can make a web experience slow and painful, no matter how beautiful it is.
In this tutorial we’ll discuss ways that let you provide the eye-pleasing experience you want without sacrificing your site’s performance.You’ll learn about the three primary aspects of image optimization:
- Image compression: how to best encode your images, delivering the same picture with the fewest bytes
- Image loading: once your files are as small as they can be, we’ll cover the best ways to make them show up quickly in the browser
- Operationalizing image optimization: different tools and techniques for integrating image optimization on your site
Talk given at Velocity Conf EU 2015: http://velocityconf.com/devops-web-performance-eu-2015/public/schedule/detail/45013
HTTPS: What, Why and How (SmashingConf Freiburg, Sep 2015)Guy Podjarny
When users use our sites, they put their faith in us. They trust we will keep their information from reaching others, believe we provided the information they see, and allow us to run (web) code on their devices. Using HTTPS to secure our conversations is a key part of maintaining this trust.
If that’s not motivation enough, the web’s giants are actively promoting HTTPS, requiring it for features such as HTTP2 & ServiceWorker, using it for search engine ranking and more. To make the most of the web, you need to use HTTPS.
This deck reviews what HTTPS is, discusses why you should prioritize using it, and cover some of the easiest (and most cost effective) steps to get started using HTTPS
High Performance Images: Beautiful Shouldn't Mean SlowGuy Podjarny
(slides from the O'Reilly webcast, see recording here: http://www.oreilly.com/pub/e/3425)
The web is becoming increasingly image rich. Between high-resolution mobile screens, Pinterest-style design and big background graphics, the average image payload has more than doubled in the last three years. While visually appealing, these images carry a substantial performance cost, and — if not optimized correctly — can make a web experience slow and painful, no matter how beautiful it is.
These slides discuss how you can provide the eye-pleasing experience you want without sacrificing your site's performance. You'll learn about the three primary aspects of image optimization:
Image Compression: How to best encode your images, delivering the same picture with the fewest bytes.
Image Loading: Once your files are as small as they can be, we'll cover the best ways to make them show up quickly in the browser.
Image Operations: Different tools and techniques for integrating image optimization on your site.
Slides from my Web Directions South 2014 Talk.
Abstract:
Responsive Web Design (RWD) is upon us, and it seems like every website has either gone responsive or planning to do so. And in this rush to implement – performance is left behind…
Last November (2013), I ran a test identifying the responsive websites amongst the top 10,000 sites, and inspected their performance traits. The results were depressing, showing many sites have gone responsive, and hardly any tackled performance.
In this talk, we’ll track the progress (or lack there of) we made as an industry. We’ll look at the results of a new test, tracking our progress in adopting RWD and – more importantly – in addressing its performance implications. We’ll share high level stats, highlight key trends, drill into representative examples, and come away with a better understanding of what we should be doing better, both on our own sites and as an industry
Third Party Performance (Velocity, 2014)Guy Podjarny
Third party components are a part of any modern site: JS libs, analytics, trackers, share buttons, ads. Many components, each adding its performance cost, cause render delays or can effectively take your site down. This isn’t your code nor your servers, so what can you do about it?
This presentation will answer this question with strategies and tactics for keeping 3rd parties from taking you down.
This talk was given at Velocity Santa Clara, 2014: The presentation from Velocity Santa Clara, 2014 (http://velocityconf.com/velocity2014/public/schedule/detail/35448).
This document discusses how a URL is no longer sufficient for content delivery given modern dynamic web pages. It proposes implementing "rules driven delivery" where delivery definitions are structured as reusable, hierarchical rules that define criteria for when to apply delivery behaviors. These rules would be pushed to CDN edges to enable offloading and improve performance over simply relying on URLs and caching. Examples of rules provided include redirecting mobile users, image format negotiation based on Accept headers, and granular caching based on request header values. The goal is more flexible content delivery and caching optimized for a wide variety of dynamic web page scenarios.
Responsive In The Wild (SmashingConf, 2014)Guy Podjarny
Awareness to Responsive Web Design has grown substantially over the last few years, and practically any major organization has some RWD project in their Mobile Strategy decks. However, are we just talking about it, or actually doing it?
I ran a mass test to identify the responsive websites amongst the top 100,000 websites in the world. Eventually, we'll be able to rerun this test to track RWD adoption over time, but for now we can use it to see how RWD sites compare to each other and to non-RWD sites.
This short presentation, given over beers at the awesome SmashingConf, shares some such insights.
A (slightly smaller) but more detailed description of the test can be found here: www.guypo.com/mobile/roughly-1-in-8-websites-is-responsive/
Putting Your Images on a Diet (SmashingConf, 2014)Guy Podjarny
Images are quickly becoming one of the most critical factors for web performance. On one hand, users are demanding more visual websites, driving an increase in the number of images on a page and making background images cool again. On the other hand, technology trends such as Retina displays and RWD are making it much harder to choose the right image to download at any given time, avoiding the download of excess bytes.
In this talk, I go over what you can do to maximize the impact of every image byte. I explain the concept of Image Compression, understand how it applies to different image formats, and show the tools and techniques you should use to communicate the best visuals with the fewest bytes. Lastly, I show how to combine image compression and Retina displays, and discuss some newer image formats and how you can take advantage of them today
Third party-performance (Airbnb Nerds, Nov 2013)Guy Podjarny
Almost every site on the internet today serves 3rd-party assets and code - jQuery, analytics, trackers, share buttons, ads - from both their own servers and others - cloud providers, dedicated hardware, CDNs, google hosting. These third parties can have a significant effect on performance, delaying the load event, deferring actions, and being a single point of failure beyond your control. This deck discusses techniques and strategies for working with 3rd parties within these limitations, and shares some relevant community work.
Third parties are a part of our reality, and offer great business value - but also present some very real performance concerns.
This deck attempts to define and offer strategies, along with some practical tips, on how to deal with this problem.
Images seem simple - they're static, independent from each other, and don't mess up the DOM. However, images make up 60%-70% of page bytes, and their visual nature makes them critical for user experience. Investing in Image Optimization is a highly worthwhile investment.
This presentation covers 4 aspects of Image Optimization:
- Optimizing Image formats (including background on GIF, PNG, JPEG, WebP, JPEG XR and more)
- Optimizing image delivery
- Optimizing image loading in the page
- Responsive Images - optimizing images for mobile screens
The Mobile Web is a complicated beast, making Mobile Web Performance a tough problem to tackle. Is an iPad on WiFi a part of the Mobile Web? How about a laptop with a 3G stick?
This presentation tries to split the Mobile Web into three categories, to make it more manageable: Network, Software & Hardware. For each, it reviews the performance challenges this category entails, and offers possible solutions to those challenges.
A recording of this presentation (with audio) is available here: http://vimeo.com/32917131
Presentation from 17/3/2011 at the NY Web Performance Chapter about the iPhone/Android Comparison Study by Blaze.io (http://www.blaze.io), presented by Guy Podjarny
Best Programming Language for Civil EngineersAwais Yaseen
The integration of programming into civil engineering is transforming the industry. We can design complex infrastructure projects and analyse large datasets. Imagine revolutionizing the way we build our cities and infrastructure, all by the power of coding. Programming skills are no longer just a bonus—they’re a game changer in this era.
Technology is revolutionizing civil engineering by integrating advanced tools and techniques. Programming allows for the automation of repetitive tasks, enhancing the accuracy of designs, simulations, and analyses. With the advent of artificial intelligence and machine learning, engineers can now predict structural behaviors under various conditions, optimize material usage, and improve project planning.
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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.
Details of description part II: Describing images in practice - Tech Forum 2024BookNet Canada
This presentation explores the practical application of image description techniques. Familiar guidelines will be demonstrated in practice, and descriptions will be developed “live”! If you have learned a lot about the theory of image description techniques but want to feel more confident putting them into practice, this is the presentation for you. There will be useful, actionable information for everyone, whether you are working with authors, colleagues, alone, or leveraging AI as a collaborator.
Link to presentation recording and transcript: https://bnctechforum.ca/sessions/details-of-description-part-ii-describing-images-in-practice/
Presented by BookNet Canada on June 25, 2024, with support from the Department of Canadian Heritage.
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.
Best Practices for Effectively Running dbt in Airflow.pdfTatiana Al-Chueyr
As a popular open-source library for analytics engineering, dbt is often used in combination with Airflow. Orchestrating and executing dbt models as DAGs ensures an additional layer of control over tasks, observability, and provides a reliable, scalable environment to run dbt models.
This webinar will cover a step-by-step guide to Cosmos, an open source package from Astronomer that helps you easily run your dbt Core projects as Airflow DAGs and Task Groups, all with just a few lines of code. We’ll walk through:
- Standard ways of running dbt (and when to utilize other methods)
- How Cosmos can be used to run and visualize your dbt projects in Airflow
- Common challenges and how to address them, including performance, dependency conflicts, and more
- How running dbt projects in Airflow helps with cost optimization
Webinar given on 9 July 2024
INDIAN AIR FORCE FIGHTER PLANES LIST.pdfjackson110191
These fighter aircraft have uses outside of traditional combat situations. They are essential in defending India's territorial integrity, averting dangers, and delivering aid to those in need during natural calamities. Additionally, the IAF improves its interoperability and fortifies international military alliances by working together and conducting joint exercises with other air forces.
TrustArc Webinar - 2024 Data Privacy Trends: A Mid-Year Check-InTrustArc
Six months into 2024, and it is clear the privacy ecosystem takes no days off!! Regulators continue to implement and enforce new regulations, businesses strive to meet requirements, and technology advances like AI have privacy professionals scratching their heads about managing risk.
What can we learn about the first six months of data privacy trends and events in 2024? How should this inform your privacy program management for the rest of the year?
Join TrustArc, Goodwin, and Snyk privacy experts as they discuss the changes we’ve seen in the first half of 2024 and gain insight into the concrete, actionable steps you can take to up-level your privacy program in the second half of the year.
This webinar will review:
- Key changes to privacy regulations in 2024
- Key themes in privacy and data governance in 2024
- How to maximize your privacy program in the second half of 2024
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.
Measuring the Impact of Network Latency at TwitterScyllaDB
Widya Salim and Victor Ma will outline the causal impact analysis, framework, and key learnings used to quantify the impact of reducing Twitter's network latency.
Transcript: Details of description part II: Describing images in practice - T...BookNet Canada
This presentation explores the practical application of image description techniques. Familiar guidelines will be demonstrated in practice, and descriptions will be developed “live”! If you have learned a lot about the theory of image description techniques but want to feel more confident putting them into practice, this is the presentation for you. There will be useful, actionable information for everyone, whether you are working with authors, colleagues, alone, or leveraging AI as a collaborator.
Link to presentation recording and slides: https://bnctechforum.ca/sessions/details-of-description-part-ii-describing-images-in-practice/
Presented by BookNet Canada on June 25, 2024, with support from the Department of Canadian Heritage.
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
An invited talk given by Mark Billinghurst on Research Directions for Cross Reality Interfaces. This was given on July 2nd 2024 as part of the 2024 Summer School on Cross Reality in Hagenberg, Austria (July 1st - 7th)
Scaling Connections in PostgreSQL Postgres Bangalore(PGBLR) Meetup-2 - MydbopsMydbops
This presentation, delivered at the Postgres Bangalore (PGBLR) Meetup-2 on June 29th, 2024, dives deep into connection pooling for PostgreSQL databases. Aakash M, a PostgreSQL Tech Lead at Mydbops, explores the challenges of managing numerous connections and explains how connection pooling optimizes performance and resource utilization.
Key Takeaways:
* Understand why connection pooling is essential for high-traffic applications
* Explore various connection poolers available for PostgreSQL, including pgbouncer
* Learn the configuration options and functionalities of pgbouncer
* Discover best practices for monitoring and troubleshooting connection pooling setups
* Gain insights into real-world use cases and considerations for production environments
This presentation is ideal for:
* Database administrators (DBAs)
* Developers working with PostgreSQL
* DevOps engineers
* Anyone interested in optimizing PostgreSQL performance
Contact info@mydbops.com for PostgreSQL Managed, Consulting and Remote DBA Services