This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
Zoom scaled from 20 million to 300 million users virtually over night. What's incredible is from the outside they've shown little in the way of apparent growing pains, though on the inside it's a good bet a lot of craziness is going on. Sure, Zoom has made some design decisions that made sense as a small spunky startup that don't make a lot of sense as a defacto standard, but that's to be expected.
Netflix is known for its loosely coupled and highly scalable microservice architecture. Independent services allow for evolving at different paces and scaling independently. Yet they add complexity for use cases that span multiple services. Rather than exposing 100s of microservices to UI developers, Netflix offers a unified API aggregation layer at the edge.
As a Java Developer, we need to cover a lot of scenarios to ensure the quality of our software and catch bugs as soon as possible when introducing a new code. For 99% of all my use cases AssertJ, Junit, Mockito, and Wiremock are sufficient enough do cover the test cases. But for the other use cases, like unit testing info, debug or warn log messages, these frameworks don't help you out.
If you’re hosting your databases in the cloud, choosing the right cloud service provider is a significant decision to make for your long-term hosting costs. This is especially apparent in today’s world where organizations are doing whatever they can to optimize and reduce their costs. Over the last few weeks, we have been inundated with requests from SMB customers looking to improve the ROI on their database hosting.
A couple of years ago, my first few days on a new web performance project were always slow going. So many false starts, tedious workflows, and a complete lack of efficiency really made it difficult for me to find momentum. All through no fault of the client or the project, but through huge flaws in my own approach. In a bid to address this, I introduced a new tool into my arsenal so that I could hit the ground running much faster, and get answers to my clients much sooner.
Dynatrace news. Today, the AI Breakthrough Awards announced its 2020 winners , recognizing the leading AI innovators and solutions. We are proud to s hare Dynatrace has been named the winner in the “ Best Overall AI-based Analytics Company ” category, recognized for our innovation and the business-driving impact of our AI engine, Davis. .
Some time ago Federico Toledo published Performance Testing with Open Source Tools- Busting The Myths. While Federico definitely has good points there, there is some truth in these myths too. Otherwise we wouldn’t see so many commercial tools built on the top of open source including BlazeMeter (it is ironic that the article is posted on the BlazeMeter site), Flood, and OctoPerf.
The global healthcare pandemic has been like nothing many of us in Europe have ever known. During this time, many organizations have been contemplating their role in the COVID-19 crisis, and how they can best serve their communities. I can tell you it has been no different for us at Amazon Web Services (AWS). We are focused on where we can make the biggest difference, to help the global communities in which we all live and work.
Sign up to get articles personalized to your interests!
Technology Performance Pulse brings together the best content for technology performance professionals from the widest variety of industry thought leaders.
The global healthcare pandemic has been like nothing many of us in Europe have ever known. During this time, many organizations have been contemplating their role in the COVID-19 crisis, and how they can best serve their communities. I can tell you it has been no different for us at Amazon Web Services (AWS). We are focused on where we can make the biggest difference, to help the global communities in which we all live and work.
Web Performance is important for user experience and business metrics. Estimating its impact is key to be able to prioritize it, yet it’s difficult to quantify its benefits until the work has been done. We need to break this chicken-and-egg loop. This post explains several ways of assessing the potential performance gains with little effort and, more importantly, without actually implementing fixes.
There may be an undiscovered tribe deep in some jungle somewhere that hasn’t made up their mind on microservices, but I doubt it. People love microservices or love to hate microservices. There’s not much in between. So it means something when even a team at a company like Uber announces a change away from microservices to something else.
Every day is a challenge for newbie automation testers! Just when you learned how to perform automated browser testing on a single window, you now come across the challenge of handling multiple windows. Isn’t this a nightmare! Well, no need to worry, I've got you covered. While performing automated browser testing, at times you might end up in situations where you would need to handle multiple windows and tabs.
Life of a Netflix Partner Engineer?—?The case of the extra 40 ms By: John Blair , Netflix Partner Engineering The Netflix application runs on hundreds of smart TVs, streaming sticks and pay TV set top boxes. The role of a Partner Engineer at Netflix is to help device manufacturers launch the Netflix application on their devices. In this article we talk about one particularly difficult issue that blocked the launch of a device in Europe.
Selenium Framework interacts with the web browser via the Selenium WebDriver. It does so with the help of certain commands to automate browser actions such as open, close, or maximize the browser window. Also, you can handle different web elements or drop down elements browser to perform Selenium test automation. Different programming languages such as Python, Java, C#, etc uses an interface to interact with the browser.
Want your Go programs to run faster? Optimizing string comparisons in Go can improve your application’s response time and help scalability. Comparing two strings to see if they’re equal takes processing power, but not all comparisons are the same. In a previous article, we looked at How to compare strings in Go and did some benchmarking. We’re going to expand on that here.
C10K problem is a term that stands for ten thousand concurrently handling connections. To achieve this, we often need to make changes in the settings of created network sockets and default settings of Linux kernel, monitor the usage of the TCP Send/Receive Buffers and Queues and, in particular, adjust our application to be a good candidate for solving this problem.
by Damir Svrtan and Sergii Makagon As the production of Netflix Originals grows each year, so does our need to build apps that enable efficiency throughout the entire creative process. Our wider Studio Engineering Organization has built more than 30 apps that help content progress from pitch (aka screenplay) to playback: ranging from script content acquisition, deal negotiations and vendor management to scheduling, streamlining production workflows, and so on.
In a previous post , we explored the PIT Mutation Testing Maven plugin. This time, we will take a look at how we can integrate the results with SonarQube, our favorite software analysis tool. Introduction. Before reading this post, it is advised to revise our previous post about Mutation Testing. In short, with Mutation Testing faults (or mutants) are introduced into your code and consequently, your tests are run again.
Chaos Mesh is a cloud-native chaos testing platform that orchestrates chaos in Kubernetes environments. While it's well-received in the community with its rich fault injection types and easy-to-use dashboard, it was difficult to use Chaos Mesh with end-to-end testing or the continuous integration (CI) process. As a result, problems introduced during system development could not be discovered before the release.
by Aditya Mavlankar , Liwei Guo , Anush Moorthy and Anne Aaron Netflix has an ever-expanding collection of titles which customers can enjoy in 4K resolution with a suitable device and subscription plan. Netflix creates premium bitstreams for those titles in addition to the catalog-wide 8-bit stream profiles¹. Premium features comprise a title-dependent combination of 10-bit bit-depth, 4K resolution, high frame rate (HFR) and high dynamic range (HDR) and pave the way for an extraordinary viewing
You’d hardly find a website these days without alerts and pop-ups! The alert boxes warn you whenever you perform a wrong action or to enter details to access a website. These alert boxes stop you from performing any other browser functions till the alert is resolved. This is why it becomes important that you handle them in your Selenium test automation scripts.
Selenium is an open-source automation framework initially introduced in 2004. Using this framework, we can validate web applications across different browsers and platforms. Java, C#, Python are mostly used for developing test scripts. Testing performed using Selenium are generally referred to as Selenium testing. The initial version released is just a single tool, but the latest version is now not only a tool — it’s a software suite with a pack of IDE, RC, and WebDriver.
Python might not have bright years in the past years (which is mainly launch in the year 1991) but it has seen a continuous and amazing trend of growth in the 21st century. This stack overflow graph of major programming languages’ growth exclusively depicts the steady progress of the PYTHON! The growth rate of python was not something easy to achieve.
JSON stands for JavaScript Object Notation. It is an open standard format which organizes data into key/value pairs and arrays detailed in RFC 7159. JSON is the most common format used by web services to exchange data, store documents, unstructured data, etc. In this post, we are going to show you tips and techniques on how to effectively store and index JSON data in PostgreSQL.
Greenplum Database is a massively parallel processing (MPP) SQL database that is built and based on PostgreSQL. It can scale towards a multi-petabyte level data workload without a single issue, and it allows access to a cluster of powerful servers that will work together within a single SQL interface where you can view all of the data. In this blog post, we explain what Greenplum is, and break down the Greenplum architecture, advantages, major use cases, and how to get started.
According to netmarketshare , Google Chrome accounts for 67% of the browser market share. It is the choice of the majority of users and it’s popularity continues to rise. This is why, as an automation tester, it is important that you perform automated browser testing on Chrome browser. ChromeDriver is used along with Selenium to automate tests on the Chrome browser.
The global gaming industry is expected to reach more than $300 billion by 2025 with the growth of revolutionary offerings, like cloud gaming and mobile gaming, according to a new report from GlobalData. With the constant growth and expansion of the gaming industry worldwide, top leaders in this industry like AltSpaceVR and BigScreenVR, are accelerating a virtual future probably faster than many wait for.
Hey, it's HighScalability time! I can't wait for the duel. Just don't shoot into the air. Do you like this sort of Stuff? Without your support on Patreon this kind of Stuff won't happen. Know someone who could benefit from becoming one with the cloud? Of course you do. I wrote Explain the Cloud Like I'm 10 just for them. On Amazon it has 167 mostly 5 star reviews.
Do you like to stay in the know about the most up-and-coming software testing tools? These days our team has been buzzing about plenty of tools we’ve come across, hosting tutorials and internal chats to share knowledge about them with one another and we figured we’d share them with you in this article!
As programmers, we often find ourselves asking the same two questions over and over again: How much time does this algorithm need to complete? How much space does this algorithm need for computing? To put it in other words, in computer programming, there are often multiple ways to solve a problem, so.
At times, while performing automated browser testing, you often have to deal with elements, which reveal only after you hover on the menu or after you click on them. In such cases, you can opt for using the action class for keyboard and mouse actions in Selenium Protractor. With the action class, you can automate representation of mouse activities, such as a mouse clicking, mouse hovering, etc.
We’ve seen many of the technological advances described in the Star Trek milieu become reality over the last 50 years, from personal communication devices and instant translators to GMOs, medical robots, 3D printing and weapons that stun. But, ah yes, the matter transporter. By far, the invention that captivates us most.
In recent years, you’d hardly see an organization who had not transitioned to automation testing. After All, with quick feedback on new features, who’d want to miss out on Selenium testing. Even then, a few testers complain of the automation tests being unstable and unreliable. Trust me, that’s not true! A lot of the time the reason for your unstable tests is not following the right practices for Selenium test automation.
A lot of times while performing Selenium test automation, you’ll come across certain scenarios when your test fails because the webpage or the web element takes some time to load completely. In such scenarios, the best approach is to wait for the page or the web elements to load completely to avoid any errors due to timeout. These errors can be easily resolved if you know how to handle timeouts in Protractor with Selenium, as they help to set an interval of time before the next action is carried
Cyberattacks are rising decade per decade, and this decade is no different. It is no surprise that web attacks rose by 56% in the last year alone, reports Norton's 2019 Internet Security Threat Report. It provides an insightful example: " Cybercriminals load malicious code onto retailers' websites to steal shoppers' credit card details, with 4,800+ unique websites compromised on average every month.
One of the more fundamental rules of building fast websites is to optimise your assets, and where text content such as HTML, CSS, and JS are concerned, we’re talking about compression. The de facto text-compression of the web is Gzip, with around 80% of compressed responses favouring that algorithm, and the remaining 20% use the much newer Brotli. Of course, this total of 100% only measures compressible responses that actually were compressed—there are still many millions of resources that could
Microsoft Azure is one of the most popular cloud providers in the world, and a natural fit for database hosting on applications leveraging Microsoft across their infrastructure. MySQL is the number one open source database that’s commonly hosted through Azure instances. While Microsoft offers their own Azure Database product, there are other alternatives available that may be able to help you improve your MySQL performance.
New technologies and techniques are shaping the future at the same pace. The fast technological advancements in the software development and software testing industry strike the testers to improve their skills analytically. As per Gartner , Multi experience is going to be the app development upcoming future. Companies are now determined on releasing their products on multiple series of gadgets counting augmented reality (AR), AI, and wearables, thus allowing the users to experience the products
Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. by Elizabeth Carretto Everyone loves Unsolved Mysteries. There’s always someone who seems like the surefire culprit. There’s a clear motive, the perfect opportunity, and an incriminating footprint left behind.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content