The Netflix TechBlog

AUGUST 30, 2021

By Benson Ma , Alok Ahuja Introduction At Netflix, hundreds of different device types, from streaming sticks to smart TVs, are tested every day through automation to ensure that new software releases continue to deliver the quality of the Netflix experience that our customers enjoy.

Latency 213

Latency Traffic Transportation Cloud 213

Testsigma

FEBRUARY 12, 2021

Just a manual testing approach would not suffice for today’s wired devices and dynamic architectural applications of Industry 4.0. The way we now look at software engineering has revolutionized test automation, with QA teams adapting automation to expand test scope, increase efficiency and do more testing in less time.

Testing 54

Testing Testing Tools Software Engineering Efficiency 54

Dynatrace

SEPTEMBER 29, 2021

Just like shipping containers revolutionized the transportation industry, Docker containers disrupted software. The time and effort saved with testing and deployment are a game-changer for DevOps. From the perspective of a software development cycle, Docker’s home turf is development. What is Docker?

Open Source 290

Open Source Traffic DevOps Cloud 290

Smashing Magazine

OCTOBER 27, 2021

The eye-tracking methodology can be extremely valuable for usability tests since it records the journey without interfering with the users’ natural behavior. Imagine, for example, that you test a prototype but discover that users are not interacting with the interface how they are supposed to. Mariana Macedo. 2021-10-27T10:00:00+00:00.

Mobile 114

Mobile Website Hardware Social Media 114

Tech News Gather

APRIL 13, 2023

So Interactive apps are also challenging for developers, as they require a lot of effort and time to test applications on all platforms. The company should provide a top-notch and reliable security application resistant to internet dangers like hackers. An engaging UI directly means a better and bigger user base.

Mobile 52

Mobile Development Hardware Internet 52

Brendan Gregg

SEPTEMBER 25, 2021

As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Colleagues/Internet I love using [Linux performance tools]. But I also love solving issues quickly, and sometimes that means just asking colleagues or searching the Internet.

Speed 126

Speed Java AWS Virtualization 126

Dotcom-Montior

JUNE 15, 2020

The entire country of China’s internet connectivity is shielded by the Great Firewall (GFW). There are three state-owned ISP providers, China Unicom, China Telecom, and China Mobile , that control internet in China. The most recent technology automatically shuts internet off whenever blacklisted URLs are accessed.

Monitoring 52

Monitoring Performance Artificial Intelligence Internet 52

Testsigma

MAY 19, 2021

DevOps is not a single system, rather it is a combination of many processes – testing, deployment, production, etc – thus, it’s better termed as a ‘distributed infrastructure’. These may include operating systems and other software on the machine. Software as a Service (SaaS). Centralizes the Processes.

DevOps 59

DevOps Cloud Artificial Intelligence Infrastructure 59

Alex Russell

JANUARY 30, 2024

HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. Many critiques are possible, both of the target (five seconds for first load), the sample population (worldwide internet users), and of the methodology (informed reckons).

Performance 90

Performance Network Mobile Speed 90

High Scalability

SEPTEMBER 14, 2018

72 : signals sensed from a distant galaxy using AI; 12M : reddit posts per month; 10 trillion : per day Google generated test inputs with 100s of servers for several months using OSS-Fuzz; 200% : growth in Cloud Native technologies used in production; $13 trillion : potential economic impact of AI by 2030; 1.8 They'll love you even more.

Internet 30

Internet Internet Scalability Education 30

Smashing Magazine

OCTOBER 11, 2022

The internet accounts for an estimated 3–4% of global emissions — equivalent to some countries. The carbon emissions of the internet are roughly equivalent to those generated by the entire aviation industry, or the whole of Africa. Hardware And E-Waste. Image credit: BBC.com ) ( Large preview ). Regulation.

Strategy 126

Strategy Development Energy Website 126

Percona

NOVEMBER 1, 2023

MySQL backups play a pivotal role in safeguarding the integrity of your data, providing defense against various unforeseen calamities, hardware malfunctions, data loss, corruption, and inadvertent deletions. DataCenter Failure : power outage or internet provider issues. Why Do MySQL Backups Matter?

Best Practices 77

Best Practices Storage Strategy Database 77

Percona

JUNE 20, 2023

I tried to search for details related to segmentation fault on the internet and found many articles; however, it failed to quench my thirst as none of them had the answer I was looking for. foo" (itemId TEXT, last_update TIMESTAMP, PRIMARY KEY(itemId) ); DECLARE "test-cursor-crash" CURSOR WITH HOLD FOR SELECT di.itemId FROM "debug".downloaded_images

Programming 82

Programming C++ Database Virtualization 82

Tim Kadlec

JANUARY 9, 2019

My home internet connection gives me somewhere around 3 Mbps down. Hardware gets better, sure. It’s not just that an older device will be less equipped to deal with the complexity of today’s sites, but also that it’s far less likely that the folks building those sites will have tested on your device.

Performance 111

Performance Energy Internet Internet 111

Dotcom-Montior

JUNE 19, 2017

Let’s face it – the ideal load test emulates real world traffic, yet most load testing software doesn’t come close. Held back by budget and infrastructure restrictions, some organizations have been forced to settle for load tests that paint an incomplete picture. Setting Up the Test. Creating a Script.

Performance Testing 40

Performance Testing Testing Performance Virtualization 40

Alex Russell

APRIL 29, 2021

Thanks to the Web Platform Tests project and wpt.fyi , we have the makings of an answer for the first: Tests that fail only in a given browser. wpt.fyi 's new Compat 2021 dashboard narrows this full range of tests to a subset chosen to represent the most painful compatibility bugs : Stable-channel Compat 2021 results over time.

Media 145

Media Games Education Engineering 145

All Things Distributed

MAY 8, 2012

The software that powers todayâ??s s world of Internet services has become incredibly diverse. of administrative tasks such as OS and database software patching, storage management, and implementing reliable backup and disaster recovery solutions. Werner Vogels weblog on building scalable and robust distributed systems.

Cloud 115

Cloud Development AWS Servers 115

Brendan Gregg

SEPTEMBER 25, 2021

As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Colleagues/Internet I love using Linux performance tools. But I also love solving issues quickly, and sometimes that means just asking colleagues or searching the Internet.

Speed 52

Speed Java AWS Virtualization 52

O'Reilly

JANUARY 16, 2024

These long solo drives were the perfect opportunity to test out ChatGPT’s voice feature because I couldn’t interact with the app using my hands for safety reasons. For years I had an aspirational goal of unifying all of my backups into one central directory tree, akin to the concept of a monorepo in software development.

Entertainment 76

Entertainment Internet Internet Design 76

VoltDB

JUNE 1, 2017

Hardware Optimizers” want to get the maximum utilization out of hardware. These systems were designed to have a lifetime of half a decade or more, and rapidly changing hardware meant that the initial deployment had to be sized for 5-7 years out. Bear in mind that the internet currently takes 4ms from New York to Philadelphia.

Hardware 56

Hardware Latency Virtualization Cloud 56

Brendan Gregg

SEPTEMBER 25, 2021

As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Colleagues/Internet I love using [Linux performance tools]. But I also love solving issues quickly, and sometimes that means just asking colleagues or searching the Internet.

Speed 40

Speed Java AWS Virtualization 40

KeyCDN

SEPTEMBER 20, 2018

Monitoring errors on the front-end requires a bit more work because front-end performance is highly dependant on the user’s hardware, software and connection. That being said, here are some of the best tools for tracking web application errors in 2018 Automated Testing 1. Manual Testing 5.

Strategy 67

Strategy Monitoring Website Google 67

All Things Distributed

DECEMBER 20, 2017

Developments like cloud computing, the internet of things, artificial intelligence, and machine learning are proving that IT has (again) become a strategic business driver. Each team acts according to the principle: "You build it, you run it" Hence, the teams are themselves responsible for the productive operation of the software.

Artificial Intelligence 79

Artificial Intelligence Social Media Logistics AWS 79

VoltDB

JUNE 1, 2017

Hardware Optimizers” want to get the maximum utilization out of hardware. These systems were designed to have a lifetime of half a decade or more, and rapidly changing hardware meant that the initial deployment had to be sized for 5-7 years out. Bear in mind that the internet currently takes 4ms from New York to Philadelphia.

Hardware 40

Hardware Latency Virtualization Cloud 40

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. As Sara Souedan said, not everyone has access to fast internet. This means we need to always be testing for different devices and connections.

Speed 52

Speed Website Mobile Latency 52

Alex Russell

JULY 14, 2021

Modern browsers like Chrome and Samsung Internet support a long list of features that make web apps more powerful and keep users safer. Both pass all eighteen feature tests in Thomas Steiner's excellent ??? Hardware access APIs, notably: Geolocation. PWA Feature Detector. Android's "In-App Browser" Problem(s) #.

Google 121

Google Mobile Engineering Internet 121

Brendan Gregg

SEPTEMBER 5, 2017

We're now testing container hosts in production on btrfs, instead of ZFS. Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). People rarely create them manually.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 7, 2019

Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. And if you are using CI to test the budgets, you need to make sure your tested environment matches CrUX if you used CrUX for setting the target ( thanks Patrick Meenan! ). Now you have something measurable to test against.

Performance 104

Performance Cache Metrics Network 104

Smashing Magazine

JANUARY 6, 2020

Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. Alternatively, you can also use Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Now you have something measurable to test against.

Performance 145

Performance Cache Network Metrics 145

O'Reilly

NOVEMBER 28, 2023

Unexpected outcomes, security, safety, fairness and bias, and privacy are the biggest risks for which adopters are testing. That pricing won’t be sustainable, particularly as hardware shortages drive up the cost of building infrastructure. Any attempt at automating customer service needs to be very carefully tested and debugged.

Open Source 112

Open Source Artificial Intelligence Google Infrastructure 112

Smashing Magazine

JANUARY 11, 2021

Testing And Monitoring Auditing workflow, proxy browsers, 404 page, GDPR cookie consent prompts, performance diagnostics CSS, accessibility. You can then mimic the 90th percentile’s experience for testing. Now you have something measurable to test against. Quick Wins. Download The Checklist (PDF, Apple Pages, MS Word).

Performance 145

Performance Cache Media Metrics 145

The Netflix TechBlog

APRIL 29, 2019

Content is placed on the network of servers in the Open Connect CDN as close to the end user as possible, improving the streaming experience for our customers and reducing costs for both Netflix and our Internet Service Provider (ISP) partners.

Open Source 279

Open Source Network Infrastructure Big Data 279

Tim Kadlec

JULY 31, 2013

The point is not that we all need to be testing on Google Glass—time will tell how well that device does. guiding principle, richness: Another thing to keep in mind about richness, as a developer, is that you’re probably not the average user. Here at Yahoo!, There is also a cost involved with not building sites this way.

Google 40

Google Website Hardware Games 40

Smashing Magazine

AUGUST 22, 2021

This is because HTTP/3 and QUIC mainly help deal with the somewhat uncommon yet potentially high-impact problems that can arise on today’s Internet. This explains the challenges involved in deploying and testing HTTP/3 yourself. The Internet also doesn’t have mechanisms (yet) to signal link capacities back to the endpoints.

Performance 107

Performance Network Latency Servers 107

All Things Distributed

NOVEMBER 30, 2016

Today, I want to focus on helping app developers who have chosen to develop their apps on AWS and have in the past developed some of the seminal apps of our times on AWS, such as Netflix, AirBnB, or Pinterest or created internet connected devices powered by AWS such as Alexa and Dropcam.

AWS 165

AWS Lambda Artificial Intelligence Mobile 165