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. In this blog post, we will focus on the latter feature set.

Latency 213

Latency Traffic Transportation Hardware 213

MachMetrics

JANUARY 23, 2020

You run a speed test on a website, and the results don’t match what you personally experience. Perhaps you feel like your site loads fairly quickly, but the speed test results are sub-optimal. It’s one of the most common (and frustrating) scenarios in web performance testing.

Speed 62

Speed Testing Website Cache 62

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

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Database downtime can hurt or doom any company with anything to do with the internet.

Availability 106

Availability Database Open Source Hardware 106

Dynatrace

SEPTEMBER 29, 2021

Container technology is very powerful as small teams can develop and package their application on laptops and then deploy it anywhere into staging or production environments without having to worry about dependencies, configurations, OS, hardware, and so on. The time and effort saved with testing and deployment are a game-changer for DevOps.

Open Source 297

Open Source Traffic DevOps Cloud 297

Scalegrid

APRIL 16, 2020

This is why our BYOC pricing is less than our Dedicated Hosting pricing, as the costs listed for BYOC are only what you pay for ScaleGrid and don’t include your hardware costs. These are advanced cloud configurations that allow you to protect your databases from the internet. Where to host your cloud database? Expert Tip.

Cloud 242

Cloud Azure AWS Database 242

Smashing Magazine

DECEMBER 15, 2021

Mobile phones are rapidly becoming touchscreens and touchscreen phones are increasingly all-touch, with the largest possible display area and fewer and fewer hardware buttons. Usually today this means internet connectivity, cameras, GPS, and so on, but they are distinct from smartphones.)

Mobile 104

Mobile Design Internet Internet 104

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 112

Mobile Website Hardware Social Media 112

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

NOVEMBER 27, 2018

You’ve likely uttered the phrases “test early and often” and “shift left,” but do you always remind yourself of the importance of that phrase from the end user’s perspective? LoadView, our on-demand, cloud-based load and stress testing platform , takes an outside-in approach to performance testing.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

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

The Morning Paper

OCTOBER 4, 2020

Coverage is assessed with a walk-test (4-5km/h) over all road segments on the campus, monitoring the physical-layer information from both 5G and 4G at each location. When it comes to latency the authors measured RTTs for four 5G base stations spread across the city, and 20 other Internet servers nationwide. Let’s jump in!

Energy 130

Energy Latency Performance Network 130

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

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

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’. PaaS not only provides the infrastructure (as in IaaS) but also the framework to build, test and deploy complete software on the cloud.

DevOps 59

DevOps Cloud Artificial Intelligence Infrastructure 59

The Morning Paper

JANUARY 30, 2020

Since we’re talking about mobile applications, we have to assume a changing environment over time, including the possibility of losing internet connectivity altogether. These use their regression models to estimate processing time (which will depend on the hardware available, current load, etc.).

Mobile 104

Mobile Cloud Latency Games 104

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 ).

Strategy 124

Strategy Development Energy Website 124

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

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

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

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 79

Best Practices Storage Strategy Database 79

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

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

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. software” rather than “hardware” in our brains).

Entertainment 73

Entertainment Internet Internet Design 73

All Things Distributed

MAY 8, 2012

s world of Internet services has become incredibly diverse. pricing starts at $0.035/hour and is inclusive of SQL Server software, hardware, and Amazon RDS management capabilities. The incremental deployment capabilities allow for quick development and testing cycles by only uploading modified files. Comments ().

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 40

Speed Java AWS Virtualization 40

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. We had specializations in hardware, operating systems, databases, graphics, etc.

Tuning 52

Tuning Benchmarking Engineering C++ 52

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

MachMetrics

JULY 27, 2018

If you run a private WebPageTest instance on Amazon EC2, one of the choices you’ll have to make is whether to use Linux or Windows test agents. But last week I switched over to Linux test agents, and I don’t think I’ll ever go back to Windows – here’s why: 1. Linux Agents are more consistent.

Speed 40

Speed Hardware Internet Internet 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

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

Smashing Magazine

AUGUST 3, 2021

Different browsers running on different platforms and hardware, respecting our user preferences and browsing modes (Safari Reader/ assistive technologies), being served to geo-locations with varying latency and intermittency increase the likeness of something not working as intended.

Network 145

Network Engineering Availability Monitoring 145

Smashing Magazine

APRIL 19, 2021

Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. These tools run page loads on simulated networks and devices and then tell you what the metrics were for that test run. Cumulative Layout Shift (CLS).

Google 140

Google Metrics Mobile Analytics 140

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

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. We need mechanisms that enable the mass production of data using software and hardware capabilities. Nearly 15 years later, the situation has changed.

Artificial Intelligence 79

Artificial Intelligence Social Media Logistics AWS 79

Smashing Magazine

MAY 20, 2020

For example, for an internet shop, it may be a page with a product list, product details page, shopping cart, checkout, and so on. Synthetic Tests. In this article, we will use synthetic tests and assume that our project uses GitLab with its built-in CI for project deployment. So make a competitors list. But how can you do it?

Performance 99

Performance Metrics Best Practices Code 99