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These days everyone knows the importance of front-end site testing and has some basic tools in place to help them – but how do you know if your testing efforts are ideal? From speed testing to usability testing, use these ten strategies to ensure your website is always running on all cylinders. 1. Keep a Constant Eye on Speed. As any good web developer will tell you, load speed is a vital metric to consider as part of your front-end load testing efforts, as it directly affects user experie
Last year, I spent some time in Jakarta visiting HARA , an AWS customer. They've created a way to connect small farms in developing nations to banks and distributers of goods, like seeds, fertilizer, and tools. Traditionally, rural farms have been ignored by the financial world, because they don't normally have the information required to open an account or apply for credit.
Learn to identify and point out potential issues – no programming experience necessary. Analyzing a Waterfall Chart mostly boils down to recognizing common patterns, and understanding what you can safely ignore. In a continuation of our first Waterfall Charts explained article, we’ll now go through general concepts to help you analyze a Waterfall Chart and […].
One of the quickest wins—and one of the first things I recommend my clients do—to make websites faster can at first seem counter-intuitive: you should self-host all of your static assets, forgoing others’ CDNs/infrastructure. In this short and hopefully very straightforward post, I want to outline the disadvantages of hosting your static assets ‘off-site’, and the overwhelming benefits of hosting them on your own origin.
Python is a powerful and flexible programming language used by millions of developers around the world to build their applications. It comes as no surprise that Python developers commonly leverage MongoDB hosting , the most popular NoSQL database , for their deployments due to its flexible nature and lack of schema requirements. So, what’s the best way to use MongoDB with Python?
by Guillaume du Pontavice, Phill Williams and Kylee Peña (on behalf of our Streaming Algorithms, Audio Algorithms, and Creative Technologies teams) Remember the epic opening sequence of Stranger Things 2 ? The thrill of that car chase through Pittsburgh not only introduced a whole new set of mysteries, but it returned us to a beloved and dangerous world alongside Dustin, Lucas, Mike, Will and Eleven.
Dynatrace news. Dynatrace Dashboards are constantly updated with new capabilities. If you want to get up to speed, check out my recent Performance Clinics: “ AI-Powered Dashboarding ” and “ Advanced Business Dashboarding and Analytics ”. A dashboard capability that was introduced not too long allows you to use Markdown , which is great for various things, such as: Providing links to other dashboards and resources.
Unit testing is a well-known practice, but there's lots of room for improvement! In this post, the most effective unit testing best practices, including approaches for maximizing your automation tools along the way. We will also discuss code coverage, mocking dependencies, and overall testing strategies. What is Unit Testing? Unit testing is the practice of testing individual units or components of an application, in order to validate that each of those units is working properly.
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Unit testing is a well-known practice, but there's lots of room for improvement! In this post, the most effective unit testing best practices, including approaches for maximizing your automation tools along the way. We will also discuss code coverage, mocking dependencies, and overall testing strategies. What is Unit Testing? Unit testing is the practice of testing individual units or components of an application, in order to validate that each of those units is working properly.
Wake up! It's HighScalability time: Deep-sky mosaic, created from nearly 7,500 individual exposures, provides a wide portrait of the distant universe, containing 265,000 galaxies that stretch back through 13.3 billion years of time to just 500 million years after the big bang. ( hubblesite ). Do you like this sort of Stuff? I'd greatly appreciate your support on Patreon.
Customers often ask me how AWS maintains security at scale as we continue to grow so rapidly. They want to make sure that their data is secure in the AWS Cloud, and they want to understand how to better secure themselves as they grow.
MySQL Server generates several logs that can help you monitor the activities of the server. However, once these logs are enabled, they can grow in size and start taking up too much disk space. This is why it’s important to have an automated way of archiving and preserving MySQL log files for a certain duration, as well as deleting the old ones. In this blog post, we describe some best practices for setting up and managing MySQL error logs, general logs and slow query logs for your MySQL deployme
Lerner?—?using RL agents for test case scheduling By: Stanislav Kirdey , Kevin Cureton , Scott Rick , Sankar Ramanathan Introduction Netflix brings delightful customer experiences to homes on a variety of devices that continues to grow each day. The device ecosystem is rich with partners ranging from Silicon-on-Chip (SoC) manufacturers, Original Design Manufacturer (ODM) and Original Equipment Manufacturer (OEM) vendors.
Dynatrace news. Red Hat just announced the availability of their OpenShift 4.0 container platform at the Red Hat Summit in Boston. We worked closely with our friends from Red Hat to provide a seamless experience of our software intelligence platform for the new OpenShift 4.0 release. This is why we’re proud to announce fully automated and AI-powered full-stack monitoring for OpenShift 4.0 environments from day one of its release.
Today, we're going to talk about JUnit and unit testing, one of the key skills for any software developer. You may already know that JUnit and Mockito are two of the most popular testing libraries for Java applications, and you will find them in almost every Java application classpath. I often meet and work with Java developers who know Java well but haven't written a single unit test.
Wake up! It's HighScalability time: Event horizon? Nope. It's a close up of a security hologram. Makes one think. Do you like this sort of Stuff? I'd greatly appreciate your support on Patreon. I wrote Explain the Cloud Like I'm 10 for people who need to understand the cloud. And who doesn't these days? On Amazon it has 45 mostly 5 star reviews (105 on Goodreads).
Uber operates on a global scale across more than 600 cities, with our apps relying entirely on wireless connectivity from over 4,500 mobile carriers. To deliver the real-time performance expected from Uber’s users, our mobile apps require low-latency and highly … The post Employing QUIC Protocol to Optimize Uber’s App Performance appeared first on Uber Engineering Blog.
TL;DR. Prefer f(void) in C to potentially save a 1B instruction per function call when targeting x86_64 as a micro-optimization. -Wstrict-prototypes can help. Doesn’t matter for C++. The Problem. While messing around with some C code in godbolt Compiler Explorer , I kept noticing a particular funny case. It seemed with my small test cases that sometimes function calls would zero out the return register before calling a function that took no arguments, but other times not.
By Ed Ballot “Creating a good API is hard.”?—? anyone who has created an API used by others As with any API, wrapping your data stream in a Rx observable requires consideration for reasonable error handling and intuitive behavior. The following guidelines are intended to help developers create consistent and intuitive API. Since we frequently create Rx Observables in our Android app, we needed a common understanding of when to use onNext() and when to use onError() to make the API more consisten
Dynatrace news. Over the last year we’ve seen more and more Dynatrace customers move from DevOps to NoOps. These organizations have built automation into their DevOps environments to a degree that there is no longer a need for a traditional Ops team to manage software in-house. This move toward massive automation has resulted in better products, improved quality, and better culture.
The release of the latest Red Hat developer suite version 12 brings with it a name change from Red Hat JBoss Developer Studio to Red Hat CodeReady Studio. The focus here is not on the Red Hat CodeReady Workspaces, a cloud and container development experience, but on the locally installed developers studio. The new release brings with it the questions around how to get started with the various Red Hat integration, data, and process automation product toolsets that are not installed out of the box
Well, not exactly Fishin', but I'll be on a month long vacation starting today. I won't be posting new content, so we'll all have a break. Disappointing, I know. Please use this time for quiet contemplation and other inappropriate activities. If you really need a not so quick fix there's always the back catalog of Stuff the Internet Says. Odds are there's a lot you didn't read—yet.
Hybrid Lazy Loading: A Progressive Migration To Native Lazy Loading. Hybrid Lazy Loading: A Progressive Migration To Native Lazy Loading. Andrea Verlicchi. 2019-05-06T13:30:59+02:00. 2019-05-06T11:34:08+00:00. In the past few weeks, you might have heard or read about native lazy loading, which is coming to Chromium 75 in the upcoming months. “Yeah, great news, but we’ll have to wait until all browsers support it.”.
Microservices, serverless, AI, ML, and Kubernetes are among the most notable topics in our analysis of proposals from the O’Reilly Software Architecture Conference. The speaker proposals we receive for the O’Reilly Software Architecture Conference are valuable because they come from speakers who are often the leading names in their fields. These go-to experts and practitioners operate on the front lines of technology.
By Juliano Moraes , David Henry , Corey Grunewald & Jim Isaacs Recently Netflix has started building mobile apps to bring technology and innovation to our Studio Physical Productions , the portion of the business responsible for producing our TV shows and movies. Our very first mobile app is called Prodicle and was built for Android & iOS using the same reactive architecture in both platforms, which allowed us to build 2 apps from scratch in 3 months with 4 software engineers.
Dynatrace news. Mainframe environments power 30 billion transactions a day and are used by 72 of Fortune 500 companies in 34 countries across the globe. Whilst moving applications from mainframe to a modern cloud stack provides better agility and competitive advantage, frequently the mainframe remains as the back-end workhorse to cloud native applications due to the costs and risks of migration.
With the introduction of the agile methodology and transformation into the digital world, the software development lifecycle is changing rapidly and increasing the need for better software testing capabilities. And software testing is being forced to be reinvented every day due to the introduction of new technologies like artificial intelligence, virtualization, and predictive analysis.
Who's Hiring? Triplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart. Make your job search O (1), not O ( n ). Apply here. Need excellent people? Advertise your job here! Fun and Informative Events. Join Etleap , an Amazon Redshift ETL tool to learn the latest trends in designing a modern analytics infrastructure.
Many big companies such as Netflix, Conde Nast and NY Times are migrating their compute services to serverless. But sometimes the cloud architects are confused about the application of serverless technologies. This blog explains 10 AWS Lambda Use Cases to help you get started with serverless. The post 10 AWS Lambda Use Cases to Start Your Serverless Journey appeared first on Insights on Latest Software Technologies - Simform Blog.
Understanding real-world concurrency bugs in Go Tu, Liu et al., ASPLOS’19. The design of a programming (or data) model not only makes certain problems easier (or harder) to solve, but also makes certain classes of bugs easier (or harder) to create, detect, and subsequently fix. Today’s paper choice studies concurrency mechanisms in Go. Before we dive in, it might be interesting to pause for a moment and consider your own beliefs about Go, which may well include some of the following: Go wa
The year was 2013. Candy Crush was at the top of the App Store, Grumpy Cat was making rounds on the Internet, and I was introduced to a better way to test software that doesn't involve using test cases.
Dynatrace news. We’re proud to announce the Early Access Program (EAP) for monitoring of SAP ABAP performance from the infrastructure and ABAP application platform perspective. Why SAP ABAP platform monitoring in Dynatrace? SAP estimates that 80% of all worldwide business transactions touch SAP systems in some form. As of today, the SAP ABAP application server remains the central component of the SAP ERP solution.
This post is intended to present a project that could help with testing the mediation sequences created in WSO2 ESB projects. Using tools like SOAP UI and Postman, we can test our APIs and Proxies by issuing requests to them and validate the response of the services. As this gives us a good start point for testing the integrations, it doesn’t allow us to test the individual pieces that compose the integration, the mediation sequences.
When building an application that allows users to have accounts, you have to ensure that access to these accounts is secure. When building a user account system, an important factor to keep in mind is how passwords are stored. Storing passwords as plain text is a complete rookie move that leaves your users vulnerable to all sorts of data breaches. The best way to protect passwords is to employ hashing and salting and in this tutorial, we’ll show you exactly how to do this.
When we talk about web performance measurement, what we’re actually trying to determine is the moment when a user can effectively achieve his or her goal. Meaning the users can consult the content they are looking for and/or interact with the page in a satisfactory way.
RPCValet: NI-driven tail-aware balancing of µs-scale RPCs Daglis et al., ASPLOS’19. Last week we learned about the [increased tail-latency sensitivity of microservices based applications with high RPC fan-outs. Seer uses estimates of queue depths to mitigate latency spikes on the order of 10-100ms, in conjunction with a cluster manager. Today’s paper choice, RPCValet, operates at latencies 3 orders of magnitude lower, targeting reduction in tail latency for services that themselves have se
In the pop culture of the United States, Sasquatch (a.k.a. Bigfoot) is a legendary and elusive ape-like creature infrequently seen in the Pacific Northwest. In the software realm, we have our own version of Sasquatch: those irritating, sometimes catastrophic, issues that are hard to reproduce.
Dynatrace news. It’s been a few weeks since Gartner released their annual Magic Quadrant for Application Performance Monitoring (APM), which not only recognized Dynatrace as a Leader, but positioned us highest for ability to execute and furthest for completeness of vision. After having time to reflect, I wanted to share my thoughts on what this recognition means for our partners.
We have all been in situations while using software or a web applications where everything is running too slowly. You click a button and nothing is happening except a loader animation spinning for a seemingly infinite time. The worst case is when end users face this kind of issue. This is bad news for the developer or the owner of the application. These are because of performance issues, and the only way this can be eliminated is through performance testing.
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