The Netflix TechBlog

OCTOBER 29, 2020

For these reasons, as a small engineering team, we’ve found that optimizing for reliability and speed of product delivery is required for us to serve our evolving customers’ needs successfully. The high likelihood of unreliable network connectivity led us to lean into mobile solutions for robust client side persistence and offline support.

Mobile 279

Mobile Cache Network Architecture 279

CSS Wizardry

SEPTEMBER 6, 2022

Honestly, in this scenario, my advice is almost always: don’t bother trying to retrofit Critical CSS—just hash-n-cache 1 2 the living daylights out of your existing CSS bundles until you replatform and do it differently next time. priority request, and hits the network after the JavaScript. How do we automate it? performance.

Media 351

Media Cache Network Website 351

The Netflix TechBlog

MARCH 6, 2019

Furthermore, the movie file is very large (often several 100s of GB), and we want to avoid downloading the entire file for each individual video encoder that might be processing only a small segment of the whole movie. Disk Caching? — ? MezzFS can be configured to cache objects on the local disk. Regional caching? —?Netflix

Media 214

Media Storage Processing Cache 214

Smashing Magazine

SEPTEMBER 28, 2022

The resource loading waterfall is a cascade of files downloaded from the network server to the client to load your website from start to finish. It essentially describes the lifetime of each file you download to load your page from the network. You can see this by opening your browser and looking in the Networking tab.

Cache 126

Cache Performance Servers Social Media 126

Smashing Magazine

NOVEMBER 22, 2021

We deployed these enhancements gradually over time to ensure that our users didn’t experience any disruptions, but instead only a consistent improvement of their site speed. While some noticeable progress was made, it was challenging to implement significant changes just for the sake of speed. Creating A Performance Culture.

Website 126

Website Performance Google Media 126

CSS - Tricks

APRIL 1, 2021

seconds faster on average and it drove 60 million more Firefox downloads per year. Speed is also something Google considers when ranking your website placement on mobile. With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise.

Cache 92

Cache Social Media Media Network 92

Smashing Magazine

AUGUST 3, 2023

Largest Contentful Paint (LCP) LCP measures the perceived load speed of a webpage from a user’s perspective. You need to beware that slow server response times can significantly increase TTFB, often due to server overload, network issues, or un-optimized logic on the server side. Adding to this complexity is the effect of seasonality.

Performance 74

Performance Cache Traffic Metrics 74

Smashing Magazine

JUNE 26, 2019

What Web Designers Can Do To Speed Up Mobile Websites. What Web Designers Can Do To Speed Up Mobile Websites. I recently wrote a blog post for a web designer client about page speed and why it matters. What I didn’t know before writing it was that her agency was struggling to optimize their mobile websites for speed.

Website 110

Website Speed Mobile Design 110

Smashing Magazine

AUGUST 30, 2021

By default, CSS is a render-blocking resource , meaning that the website won’t be displayed to the user until all linked stylesheets and their dependencies (fonts, for example) have been downloaded and parsed by the browser. We know that it shouldn’t be referenced in the HTML head element when the page HTML is first downloaded.

Media 109

Media Performance Cache Strategy 109

Percona

APRIL 24, 2023

I keep seeing many articles and talks on “tuning” discussing how creating new indexes speeds up SQL but rarely ones discussing removing them. The more indexes, the more the requirement of memory for effective caching. Cache requirements for indexes are generally much higher than associated tables.

Tuning 124

Tuning Cache Storage Database 124

KeyCDN

JULY 11, 2019

This is crucial due to mobile devices requiring additional optimizations because they typically have less powerful hardware and a slower network connection when compared to desktop devices. For example, while the average mobile download speed on 4G in Switzerland is fast at 35.2 Mbps ( Opensignal ). How Can an Image CDN Help?

Speed 52

Speed Website Mobile Latency 52

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. Download The Checklist (PDF, Apple Pages, MS Word). Quick Wins.

Performance 145

Performance Cache Media Metrics 145

Dotcom-Montior

MARCH 6, 2022

Waterfall charts are diagrams which represent how website resources are being downloaded, parsed by the engine, in a timeline that gives us the opportunity to see the sequence and dependencies between resources. Optimizing Web Performance by Understanding Waterfall Charts Performance and speed of a web site plays a tremendous role.

Performance 52

Performance Cache Website Speed 52

Smashing Magazine

JULY 29, 2019

Failing that, we are usually able to connect to home or public WiFi networks that are on fast broadband connections and have effectively unlimited data. The speed of mobile networks, too, varies considerably between countries. South Korea has the fastest mobile download speed , averaging 52.4 Mbps download and 0.7

Cache 96

Cache Google Mobile Network 96

The Morning Paper

OCTOBER 4, 2020

We are standing on the eve of the 5G era… 5G, as a monumental shift in cellular communication technology, holds tremendous potential for spurring innovations across many vertical industries, with its promised multi-Gbps speed, sub-10 ms low latency, and massive connectivity. The first 5G networks are now deployed and operational.

Energy 130

Energy Latency Performance Network 130

IO River

NOVEMBER 2, 2023

This is where a well-architected Content Delivery Network (CDN) shines. The goal is to boost the pitfalls of network disruptions and vendor dependencies, all while pocketing cost savings. Given its unchanging nature, static content is ideal for caching. This is what buffering means in terms of video streaming.

Architecture 52

Architecture Performance Internet Internet 52

The Netflix TechBlog

JULY 1, 2019

Development As part of developing this type of UI experience on any platform, we knew we would need to think about creating smooth, performant animations with a balance between quality and download size for the images and video previews, all without degrading the performance of the app. images no longer in the viewport).

Cache 166

Cache Design Testing Development 166

Smashing Magazine

JUNE 8, 2021

Image optimization , loading behavior and rendering in the browser require understanding of image formats and image compression techniques, image decoding and browser rendering, image CDNs and adaptive media loading, not to mention effective caching and preloading. Jump to the details ↓ Download a free PDF sample (12MB).

Media 106

Media Cache Google Best Practices 106

Randon ASCII

JULY 11, 2022

A bug had been filed suggesting that Chrome download speeds (such as those measured by speedtest.net ) seemed to be affected by some anti-virus software. Downloads go through the cache, the cache is saved to disk, and saves to disk are slowed by (some) anti-virus software. As usual, I was minding my own business.

Cache 105

Cache Energy Google Processing 105

Percona

OCTOBER 2, 2023

Caches | 12.4G Caches | 12.4G Caches | 12.4G Caches | 12.4G 2004l# Percona Toolkit System Summary Report ###################### Date | 2023-09-25 14:43:34 UTC (local TZ: CDT -0500) Hostname | testbox Uptime | 44 min, 1 user, load average: 0.47, 0.67, 0.57 Platform | Linux Release | Ubuntu 22.04.3 virtual = 2.2G

Cache 96

Cache Database Virtualization Servers 96

Dotcom-Montior

MAY 6, 2020

Waterfall charts are diagrams which represent how website resources are being downloaded, parsed by the engine, in a timeline that gives us the opportunity to see the sequence and dependencies between resources. Performance and speed of a web site plays a tremendous role. The time it takes to download files.

Performance 53

Performance Cache Website Speed 53

IO River

NOVEMBER 2, 2023

This is where a well-architected Content Delivery Network (CDN) shines. Â The goal is to boost the pitfalls of network disruptions and vendor dependencies, all while pocketing cost savings. Instead, the player downloads and stores small segments of the video, playing one while simultaneously downloading subsequent parts.Â

Architecture 52

Architecture Performance Internet Internet 52

Smashing Magazine

JANUARY 6, 2020

Download The Checklist (PDF, Apple Pages, MS Word). You can also just download the checklist PDF (166 KB) or download editable Apple Pages file (275 KB) or the.docx file (151 KB). Assets Optimizations. Build Optimizations. Delivery Optimizations. Testing And Monitoring. Quick Wins. Happy optimizing, everyone!). Large preview ).

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

APRIL 28, 2021

Image optimization , loading behavior and rendering in the browser require understanding of image formats and image compression techniques, image decoding and browser rendering, image CDNs and adaptive media loading, not to mention effective caching and preloading. Jump to the details ↓ Download a free PDF sample (12MB).

Media 93

Media Cache Google Best Practices 93

Percona

JUNE 22, 2023

Query performance Query performance is a key performance indicator (KPI) in MySQL, as it measures the efficiency and speed of query execution. This includes metrics such as query execution time, the number of queries executed per second, and the utilization of query cache and adaptive hash index.

Performance 102

Performance Monitoring Traffic Database 102

Smashing Magazine

JANUARY 7, 2019

Download The Checklist (PDF, Apple Pages, MS Word). You can also just download the checklist PDF (166 KB) or download editable Apple Pages file (275 KB) or the.docx file (151 KB). Note : If you use Page Speed Insights (no, it isn’t deprecated), you can get CrUX performance data for specific pages instead of just the aggregates.

Performance 104

Performance Cache Network Metrics 104

Smashing Magazine

JUNE 2, 2021

Every front-end developer is chasing the same holy grail of performance: green scores in Google Page Speed. Real-life performance for your users and how the website “feels” when you’re using it should not be discounted, even if it costs you a point or two in Page Speed (otherwise, we would all just have a search bar and unstyled text).

Performance 116

Performance Cache Website Mobile 116

Smashing Magazine

NOVEMBER 17, 2022

Web performance refers to the speed at which a website loads, how fast it’s downloaded, and how an app is displayed on the user’s browser. If we think about social networks, we can see two clear trends, those focusing on text and those focusing on multimedia content. The Benefits Of Using An Image Service CDN. Conclusion.

Media 106

Media Cache Website Mobile 106

Smashing Magazine

AUGUST 22, 2021

As we will see, QUIC and HTTP/3 indeed have great web performance potential, but mainly for users on slow networks. If your average visitor is on a fast cabled or cellular network, they probably won’t benefit from the new protocols all that much. A Primer on Speed. Congestion Control.

Performance 106

Performance Network Latency Servers 106

MachMetrics

MARCH 21, 2019

While lots of these KPIs are speed metrics, content performance metrics, and behavioral metrics, don’t lose sight of your main purpose (perhaps revenue). The time to first byte (aka TTFB) is stipulated by the delivery speed from the website’s original server of origin to the viewer’s ISP. Resource Download Time.

Metrics 74

Metrics Social Media Performance Speed 74

Smashing Magazine

JUNE 1, 2022

In this case, we are not going to be talking about infrastructure services, such as a cloud computing platform like Microsoft Azure or a content distribution network like Akamai. And JavaScript can certainly make requests for additional network resources. Sometimes, the visitor’s browser itself can be the origin of network activity.

Website 131

Website Design Network Best Practices 131

Dotcom-Montior

JUNE 30, 2021

With the networks all around the world, theoretically, you can do business boundlessly. As we’ve noticed, website performance, especially its speed and availability, are essential to the success of your business. You may start your diagnosis from our free speed test tool , and no sign up is required.

Website 52

Website Monitoring Website Performance Performance 52

Speed Curve

DECEMBER 13, 2023

Are you using a content delivery network (CDN) to bring elements like images closer to your users, so that delivery times are faster? Are you compressing and caching the right things? Even though the hero image – which in and of itself is a fairly well optimized image – has downloaded at around the 2.9

Performance 66

Performance Retail Benchmarking Ecommerce 66

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Prioritization.

Network 105

Network Servers Cache Traffic 105

Alex Russell

MARCH 6, 2021

Thanks to progress in networks and browsers (but not devices), a more generous global budget cap has emerged for sites constructed the "modern" way: ~100KiB of HTML/CSS/fonts and ~300-350KiB of JS (compressed) is the new rule-of-thumb limit for at least the next year or two. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

NOVEMBER 2, 2021

PWAs have been around for over five years, yet native applications outnumber them both in the quantity ratio and how many times users download them. This also implies that you don’t have to spend additional time and money on creating a PWA to suit various devices, greatly speeding up time-to-market. Why is that? Read point 2.

Code 74

Code Cache Retail Mobile 74

Dotcom-Montior

JULY 7, 2020

With the networks all around the world, theoretically, you can do business boundlessly. As we’ve noticed, website performance, especially its speed and availability, are essential to the success of your business. You may start your diagnosis from our free speed test tool , and no sign up is required.

Website 52

Website Monitoring Website Performance Performance 52