The Netflix TechBlog

MAY 1, 2019

the brilliant synth-pop score or the perfectly mixed soundscape of a high speed chase?—?is In late 2017, we received some critical feedback from the brothers on the Stranger Things 2 audio mix: in some scenes, there was a reduced sense of where sounds are located in the 5.1-channel Imagine this scene without the sound.

Engineering 274

Engineering Network Media Entertainment 274

Alex Russell

MARCH 6, 2021

TL;DR: A lot has changed since 2017 when we last estimated a global baseline resource per-page resource budget of 130-170KiB. To update our global baseline from 2017, we want to update our priors on a few dimensions: The evolved device landscape. Modern network performance and availability. The Moto G4 , for example. Hard Reset.

Performance 124

Performance Network Cache Metrics 124

Brendan Gregg

FEBRUARY 28, 2023

References I've reproduced the references from my SREcon22 keynote below, so you can click on links: [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] , Jul 2008 [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] , 2010 [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?

Performance 52

Performance Latency Cache Virtualization 52

The Symphonia

DECEMBER 6, 2017

That means that 3GB functions might not see a linear speed bump for primarily single threaded functions. to a massively distributed CDN network a possibility. Serverless at re:Invent 2017 was originally published in The Symphonium on Medium, where people are continuing the conversation by highlighting and responding to this story.

Serverless 40

Serverless Lambda AWS Traffic 40

Brendan Gregg

SEPTEMBER 5, 2017

Both Xen and KVM have had many performance and security improvements, and workloads can now be tuned to run at almost bare metal speeds (say, a 3% loss or less). At my employer we sometimes use SR-IOV for direct network interface access, and NVMe for direct disk access. Outside of EC2, many other providers are deploying on KVM.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on. Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

MachMetrics

JUNE 30, 2021

Website performance & speed plays a major role in the success of an online business. Many people often confuse site speed with page speed grades of performance testing tools, which are actually calculated based on multiple factors of a page including its loading speed. Daniel An, Google, 2017.

Cache 78

Cache Speed Google Website 78

MachMetrics

FEBRUARY 7, 2019

They get even MORE impatient when it comes to website speed. Conversion: 1 second delay means a 7% reduction in conversions Speed Affects Revenue: If your site makes $100,000/month, a one second improvement in page speed brings $7,000 month. “ The results were clear—speed matters! Want proof?

Speed 93

Speed Website Performance Website Mobile 93

KeyCDN

JANUARY 31, 2019

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. As for Romania, it covers an area of over 238,000 square kilometers and as of 2017 had a population of almost 20 million. million people. USD each online annually.

Internet 48

Internet Internet Ecommerce Speed 48

All Things Distributed

NOVEMBER 13, 2018

Since then, AWS has added another PoP in Palermo in 2017. Some of the largest enterprises and public sector organizations in Italy are using AWS to build innovations and power their businesses, drive cost savings, accelerate innovation, and speed time-to-market.

AWS 167

AWS Energy Automotive Traffic 167

All Things Distributed

SEPTEMBER 25, 2017

I'm also excited to announce today that we are launching an AWS Edge Network Location in the United Arab Emirates (UAE) in the first quarter of 2018. 2017 continues a busy year for AWS in the Middle East. We still have another five AWS Regions (and 14 Availability Zones) in China, France, Hong Kong, and Sweden.

Cloud 154

Cloud Education Energy Government 154

CSS - Tricks

APRIL 1, 2021

A 2017 study by Akamai says as much when it found that even a 100ms delay in page load can decrease conversions by 7% and lose 1% of their sales for every 100ms it takes for their site to load which, at the time of the study, was equivalent to $1.6 Speed is also something Google considers when ranking your website placement on mobile.

Cache 92

Cache Social Media Media Website 92

Tim Kadlec

JANUARY 9, 2019

Sites that use an excess of resources, whether on the network or on the device, don’t just cause slow experiences, but can leave entire groups of people out. I recently profiled a page on a Pixel 2 (released in 2017), and an Alcatel 1x (released in 2018). Mbps download speed Jake Archibald mentioned his relative getting or the 0.8

Performance 111

Performance Energy Internet Internet 111

KeyCDN

OCTOBER 24, 2018

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. In terms of Internet speed, Finland ranks as one of the fastest countries in the world. This puts them in 6th place for fastest connection speeds.

Internet 48

Internet Internet Speed Network 48

All Things Distributed

SEPTEMBER 29, 2016

The new region in France will be ready for customers to use in 2017. To support our customers’ growth, their digital transformation, and to speed up their innovation and lower the cost of running their IT, we continue to build out additional European infrastructure. Cette nouvelle région sera disponible pour les clients dès 2017.

AWS 166

AWS IoT Internet Internet 166

Dotcom-Montior

JUNE 25, 2020

A Content Delivery Network (CDN) is a network of servers that is placed in different locations across the globe. CDNs essentially act as the backbone for high speed internet content delivery and performance. Between June 2017 and 2018, the total number of SSL certificates increased by a record 13.2 million certificates.

Monitoring 77

Monitoring Website Internet Internet 77

Smashing Magazine

JANUARY 21, 2021

After the latest redesign in late 2017, it was Ilya Pukhalski on the JavaScript side of things (part-time), Michael Riethmueller on the CSS side of things (a few hours a week), and yours truly, playing mind games with critical CSS and trying to juggle a few too many things. Moving From Automated Critical CSS Back To Manual Critical CSS.

Performance 145

Performance Cache Mobile Network 145

Smashing Magazine

DECEMBER 7, 2023

DebugBear actually tests with a slower network, resulting in more accurate data. Preconnect network connections , so browsers have a hint for other domains they might need to connect to. In other words, INP is a clearer and more accurate way to measure the speed of user interactions.

Traffic 94

Traffic Metrics Google Monitoring 94

Enprowess

JANUARY 12, 2022

Web development is evolving at a rapid speed with each passing year. And so, it optimizes the page loading speed and reduces the bounce rate. So it is convenient for all to use irrespective of internet speed and it works offline using cached data. Twitter Lite PWA : It was integrated as the standard User Interface in 2017.

Blockchain 59

Blockchain IoT Development Serverless 59

Sutter's Mill

FEBRUARY 13, 2017

Today, this makes concurrency more important than ever, because it delivers two things: It hides latencies we have to deal with and cannot remove, from disk I/O latency to speed-of-light network latency; and it makes our code responsive by not introducing needless latencies of our own even when we’re not hiding someone else’s latency.

Latency 51

Latency C++ Hardware Performance 51

Brendan Gregg

JULY 15, 2019

At over 700 pages, it covers CPUs, memory, disks, file systems, networking, multiple languages, applications, containers, hypervisors, security analysis, and the Linux kernel. - I learned firsthand how to bring beginners from different backgrounds up to speed.

Systems 111

Systems Performance Education Technology 111

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 per GB respectively.

Cache 96

Cache Google Mobile Network 96

Testsigma

JANUARY 13, 2021

Studies show that in 2017, the worldwide failure rate of iOS apps was as high as 54%, with Android apps crashing 10% of the time. Not only will this help speed track the testing process, it will also help make the objectives clearer. Even a small bug will make consumers avoid, uninstall and leave bad reviews for your application.

Mobile 54

Mobile Strategy Testing Efficiency 54

Alex Russell

MARCH 31, 2022

De-duplication can prevent multiple copies on disk, but we're out of luck on reducing network costs. Having worked on browsers for more than a decade, I think it would be shocking if a browser team agreed to more than 10 MiB for a feature like this, especially if it won't dramatically speed up the majority of existing websites.

Cache 82

Cache Government Traffic Network 82

Rigor

SEPTEMBER 11, 2019

list of those who are making a significant impact on speeding up the web today. Developers representing hundreds of companies work together at these meetups to become masters in performance metrics and the latest trends in measuring site speed.) We at Rigor respect many web performance leaders around the world. Rachel Andrew.

Performance 89

Performance Education Google Website 89

Rigor

MARCH 20, 2018

I recently was asked the following question by an online retailer: “Why should I invest in monitoring the user experience when I already have monitoring for our database, infrastructure, app server, and network?”. Instead of asking that question, I asked them this: “Are you a network or hosting provider?

Monitoring 40

Monitoring Retail Ecommerce Infrastructure 40

Alex Russell

OCTOBER 22, 2017

We constrain ourselves to a real-world baseline device + network configuration to measure progress. — Alex Russell (@slightlylate) October 4, 2017. Budgets are scaled to a benchmark network & device. For developers and decision makers with fast phones on fast networks this is a double-whammy of hidden costs.

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 7, 2019

You need a business stakeholder buy-in, and to get it, you need to establish a case study on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. 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 103

Performance Cache Metrics Network 103

Testsigma

JANUARY 29, 2021

That’s not all, the global mobile traffic is expected to increase sevenfold between 2017 and 2022. Speed and Accuracy. It also lets you perform mobile website testing on throttling network conditions – a scenario that is so real in today’s world where the usage of mobile internet is rising at an alarming rate!

Website 98

Website Mobile Testing Strategy 98

The Morning Paper

JANUARY 19, 2020

STELLA: report from the SNAFU-catchers workshop on coping with complexity , Woods 2017, Coping with Complexity workshop. Today’s choice is a report from a 2017 workshop convened with that title, and recommended to me by John Allspaw – thank you John! Take a trivial example with three components A, B, and C.

C++ 50

C++ Systems Software Software 50

Brendan Gregg

JULY 14, 2019

At over 700 pages, it covers CPUs, memory, disks, file systems, networking, multiple languages, applications, containers, hypervisors, security analysis, and the Linux kernel. - I learned firsthand how to bring beginners from different backgrounds up to speed.

Systems 40

Systems Performance Education Technology 40

Brendan Gregg

AUGUST 8, 2017

Anyway, the following patch seems to make the load average much more consistent WRT the subjective speed of the system. 90491 N|rnberg (Germany) Consulting+Networking+Programming+etc'ing 42. . ;-). 90491 N|rnberg (Germany) Consulting+Networking+Programming+etc'ing 42. Network I/O? 3 tar termb$ iostat -x 60. [.]

Latency 111

Latency Metrics C++ Systems 111

The Netflix TechBlog

JULY 1, 2019

Some of the metrics we use to measure performance on the Netflix TV app include animation frames per second (FPS), key input responsiveness (the amount of time before a member’s key press renders a change in the UI), video playback speed, and app start-up time. those running the 2017 SDK?—?also

Cache 166

Cache Design Testing Development 166

All Things Distributed

DECEMBER 12, 2018

In April 2017, Amazon Web Services announced that it would launch a new AWS infrastructure region Region in Sweden. We launched Edge Network locations in Denmark, Finland, Norway, and Sweden. The AWS Europe (Stockholm) Region is our fifth European Region, joining Dublin, Frankfurt, London, and Paris.

AWS 124

AWS Cloud Games Serverless 124

Smashing Magazine

AUGUST 2, 2021

We decided to build up a very simple Kanban board, established a project stand-up and a project Slack channel, and kept management and the company up-to-date via our internal social cast network.”. Harry Roberts has outlined this strategy in 2017. Simple, clear and effective Kanban board used for large scale CSS refactoring at trivago.

Strategy 132

Strategy Testing Best Practices Code 132

All Things Distributed

OCTOBER 2, 2017

In support of Amazon Prime Day 2017, the biggest day in Amazon retail history, DynamoDB served over 12.9 VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud. million requests per second.

Internet 130

Internet Internet AWS Performance 130