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Posts Tagged ‘Performance’.

We are pleased to present below all posts tagged with ‘Performance’.

Quick Tips Breaking It Down To The Bits: How The Internet, DNS, And HTTPS Work

Smashing Magazine is known for lengthy, comprehensive articles. But what about something different for a change? What about shorter, concise pieces with useful tips that you could easily read over a short coffee break? As an experiment, this is one of the shorter "Quick Tips"-kind-of articles — shorter posts prepared and edited by our editorial team. What do you think? Let us know in the comments! —Ed.

If we want to build high performance applications, we have to understand how the individual bits are delivered.

The Internet is the foundation of our craft. But what do we actually know about its underlying technology? How do DNS, networks and HTTPS work? What happens in the browser when we type a URL in the address bar?

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Eliminating Known Vulnerabilities With Snyk

The way we consume open source software (OSS) dramatically changed over the past decade or two. Flash back to the early 2000s, we mostly used large OSS projects from a small number of providers, such as Apache, MySQL, Linux and OpenSSL. These projects came from well-known software shops that maintained good development and quality practices. It wasn’t our code, but it felt trustworthy, and it was safe to assume it didn’t hold more bugs than our own code.

Eliminating Known Vulnerabilities With Snyk

Fast-forward to today and OSS has turned into crowd-sourced marketplaces. Node’s npm carries over 210,000 packages from over 60,000 contributors; RubyGems holds over 110,000 gems, and Maven’s central repository indexes nearly 130,000 artifacts. Packages can be written by anybody, and range from small utilities that convert milliseconds to full-blown web servers. Packages often use other packages in turn, ending with a typical application holding hundreds if not thousands of OSS packages.

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Reimagining Single-Page Applications With Progressive Enhancement

What is the difference between a web page and a web application? Though we tend to identify documents with reading and applications with interaction, most web-based applications are of the blended variety: Users can consume information and perform tasks in the same place. Regardless, the way we approach building web applications usually dispenses with some of the simple virtues of the readable web.

Reimagining Single-Page Applications

Single-page applications tend to take the form of runtimes, JavaScript executables deployed like popup shops into vacant <body> elements. They’re temporary, makeshift and not cURL-able: Their content is not really there without a script being executed. They’re also brittle and underperforming because, in service of architectural uniformity and convenience, they make all of their navigation, data handling and even the basic display of content the responsibility of one thing: client-side JavaScript.

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Why Performance Matters, Part 3: Tolerance Management

When technical performance optimizations reach certain limits, psychology and perception management might help us to push the limits further. Waiting can consist of active and passive phases; for the user to perceive a wait as a shorter one, we increase the active phase and reduce the passive phase of the wait. But what do we do when the event is a purely passive wait, with no active phase at all? Can we push the limits even further?

Why Performance Matters, Part 3: Tolerance Management

Waits without an active phase happen quite often in the offline world: waiting in a checkout line to the till, waiting for a bus, queuing in an amusement park, and so on. It is widely accepted that the longer the user has to wait, the more negative the reaction to the wait. User reaction to a wait online is no different from that in the offline world. Studies based on the analysis of more than a thousand cases identify 14 distinct types of waiting situations on the web. Being dependent on our users' loyalty, we cannot leave them facing a passive wait.

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P Vs. NP: The Assumption That Runs The Internet

Let’s get a few things out of the way first. This isn’t your regular Smashing Magazine article. It’s not a “how to“; it won’t show you how to build a better menu or improve your project tomorrow. This article shows you how a core problem in computer science works and why we're all pretending we know something for certain when we really have no idea.

P Vs. NP: The Assumption That Runs The Internet

You’re looking at Smashing Magazine right now because you’re standing on the shoulders of a giant assumption called "P versus NP". It’s a math problem that protects governments, runs the Internet and makes online shopping possible.

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The State Of Airline Websites 2015: Lessons Learned

With this article, we start exploring various industries and study the current state of front-end, UX and performance of relatively complex websites. First up are airline websites. Some sections of the article were written by the editorial team. We'd love to hear your flights booking experience in the comments to this article! — Ed.

Zurich Air prompt a little pop-up if they assume that you are about to abandon the purchase.

From my home in Phoenix, Arizona, the entire world is only a few clicks away. I’ve booked flights to St. Louis, San Francisco, Honolulu, New York, London, Melbourne, Entebbe and beyond. Sometimes I’ll land in one location, travel around and leave from another. Sometimes I’ll switch or cancel a flight, and sometimes the weather does that for me. Regardless, I always get to where I want to go, and fantastic technology is in place to help me every step of the way.

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Are You Getting Cheated When Buying A WordPress Theme?

I’ve been around the block quite a bit as an SEO specialist, and in my experience website speed has emerged as an increasingly important search engine ranking factor over the last few years. Google, in particular, considers website loading speed to be very important and has made it one of the more important factors in its ranking algorithm.

Are you ripped off when buying Wordpress themes?

How does speed affect your rankings? The truth is, as with everything concerning Google, we don’t really know — we cannot isolate that factor alone.

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Guide To Using WebP Images Today: A Case Study

They say a picture is worth a thousand words. But online, a picture can be worth a thousand kilobytes or more! HTTP Archive shows that images make up 64% of a web page’s total size on average. Given this, image optimization is key, especially considering that many users will abandon a request if it doesn’t load within a few seconds.

WebP Images And Performance

The problem with image optimization is that we want to keep file sizes small without sacrificing quality. Past attempts to create file types that optimize images better than the standard JPEG, PNG and GIF formats have been unsuccessful.

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Introducing RAIL: A User-Centric Model For Performance

There’s no shortage of performance advice, is there? The elephant in the room is the fact that it’s challenging to interpret: Everything comes with caveats and disclaimers, and sometimes one piece of advice can seem to actively contradict another. Phrases like “The DOM is slow” or “Always use CSS animations” make for great headlines, but the truth is often far more nuanced.

RAIL Performance Model

Take something like loading time, the most common performance topic by far. The problem with loading time is that some people measure Speed Index, others go after first paint, and still others use body.onload, DOMContentLoaded or perhaps some other event. It’s rarely consistent. When it comes to other ways to measure performance, you’ve probably seen enough JavaScript benchmarks to last a lifetime. You may have also heard that 60 FPS matters. But when? All the time? Seems unrealistic.

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