MachMetrics

MAY 31, 2019

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

Website 49

Website Testing Speed Website Performance 49

All Things Distributed

MAY 10, 2019

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.

Blockchain 128

Blockchain Database Open Source AWS 128

Gtmetrix

MAY 8, 2019

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 […].

Programming 81

Programming 81

CSS Wizardry

MAY 31, 2019

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.

Cache 274

Cache Latency Infrastructure Website 274

The Netflix TechBlog

MAY 1, 2019

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.

Engineering 274

Engineering Network Media Entertainment 274

Scalegrid

MAY 13, 2019

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

Servers 247

Servers Best Practices Efficiency Availability 247

DZone

MAY 17, 2019

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.

Best Practices 226

Best Practices Java Testing Strategy 226

All Things Distributed

MAY 23, 2019

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.

AWS 141

AWS Cloud 141

Uber Engineering

MAY 14, 2019

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.

Wireless 111

Wireless Performance Mobile Latency 111

The Netflix TechBlog

MAY 21, 2019

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.

Testing 163

Testing AWS Lambda Network 163

Nick Desaulniers

MAY 12, 2019

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.

C++ 111

C++ Code Testing 111

DZone

MAY 31, 2019

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

Cloud 189

Cloud Processing Development 189

Dynatrace

MAY 16, 2019

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.

Innovation 195

Innovation Cloud DevOps Best Practices 195

Smashing Magazine

MAY 6, 2019

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.”.

Website 104

Website Best Practices Media Open Source 104

O'Reilly Software

MAY 16, 2019

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.

Software Architecture 104

Software Architecture Architecture Software Software 104

The Netflix TechBlog

MAY 1, 2019

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

Database 159

Database Network Code Systems 159

Simform

MAY 3, 2019

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.

Lambda 102

Lambda Serverless AWS Cloud 102

DZone

MAY 12, 2019

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.

Java 189

Java Testing DevOps Code 189

Dynatrace

MAY 31, 2019

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.

Monitoring 161

Monitoring Best Practices Programming Infrastructure 161

The Morning Paper

MAY 16, 2019

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

Programming 100

Programming C++ Design Code 100

The Polyglot Developer

MAY 15, 2019

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.

Servers 90

Servers Systems Development 90

The Netflix TechBlog

MAY 30, 2019

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.

Architecture 156

Architecture Mobile Testing Code 156

TechBeacon Testing

MAY 29, 2019

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.

Testing 94

Testing Internet Internet Software 94

DZone

MAY 31, 2019

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.

Testing 170

Testing Performance 170

Dynatrace

MAY 20, 2019

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.

Innovation 162

Innovation Cloud Infrastructure Monitoring 162

Dareboost

MAY 16, 2019

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.

Metrics 84

Metrics Best Practices Performance 84

The Polyglot Developer

MAY 27, 2019

I recently wrote a tutorial titled, Configuring Visual Studio Code for Arduino Development , because I’ve been exploring the Internet of Things (IoT). Up until recently I’ve only had hands on experience with Raspberry Pi , but I’ve been expanding my knowledge with Arduino. I have an Arduino Uno and a GPS module, so I thought it’d be a good idea to demonstrate how to use the two together.

Monitoring 75

Monitoring IoT Internet Internet 75

The Morning Paper

MAY 19, 2019

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

Latency 80

Latency Hardware Network Architecture 80

TechBeacon Testing

MAY 2, 2019

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.

Testing 86

Testing Software Software DevOps 86

DZone

MAY 3, 2019

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.

Artificial Intelligence 169

Artificial Intelligence Testing Virtualization Website 169

Dynatrace

MAY 23, 2019

Dynatrace news. We’re back in Barcelona for our second European Perform Summit, where the theme of autonomous cloud operations is traversing every aspect of the event. The foundational step on the journey to operations automation starts with adopting a new approach to monitoring – to paraphrase the adage: you can’t automate what you can’t measure. Traditional monitoring tools (we call them 2nd Generation) quickly hit a wall when up against the scale, dynamic nature and new technologies that powe

Innovation 158

Innovation Cloud Monitoring Technology 158

Rigor

MAY 22, 2019

Big data is like the pollution of the information age. There is an overwhelming amount of it—who manages it, where is it being stored, who is translating it, and what does it all mean? The Big Data Struggle and Performance Reporting. Many larger organizations leverage teams of data scientists to manage, configure and analyze the data pulled into BI and dashboarding solutions like Datadog and Grafana in an effort to get a single view into their performance.

Big Data 76

Big Data Monitoring Performance Metrics 76

Baron Schwartz

MAY 29, 2019

It’s easy for modern, distributed, high-scale applications to hide database performance and efficiency problems. Optimizing performance of such complex systems at scale requires some skill, but more importantly it requires a sound strategy and good observability, because you can’t optimize what you can’t measure. This session explains a performance measurement and optimization process anyone can use to deliver results predictably, optimizing customer experience while freeing up

Efficiency 75

Efficiency Database Performance Strategy 75

The Morning Paper

MAY 21, 2019

Software-defined far memory in warehouse-scale computers Lagar-Cavilla et al., ASPLOS’19. Memory (DRAM) remains comparatively expensive, while in-memory computing demands are growing rapidly. This makes memory a critical factor in the total cost of ownership (TCO) of large compute clusters, or as Google like to call them “Warehouse-scale computers (WSCs).” This paper describes a “far memory” system that has been in production deployment at Google since 2016.

Software 78

Software Software Google Hardware 78

O'Reilly Software

MAY 11, 2019

TL;DR Prefer f(void) in C to potentially save a 2B 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.

C++ 76

C++ Code Testing 76

DZone

MAY 20, 2019

We all know that testing your application is important, as it ensures security, customer satisfaction, and saves money in the long run. Sometimes it can save lives as well: China Airlines plane crashed due to a software bug on April 26, 1994, which took 264 lives. In software testing, unit testing is the first level of testing in which where most of the issues can be rectified, which saves time.

Airlines 167

Airlines Testing Software Software 167

Dynatrace

MAY 10, 2019

Dynatrace news. We’re very excited about this week’s announcement from Red Hat , one of our technology alliance partners , about the public release of Red Hat Enterprise Linux 8. This announcement was made during the Red Hat Summit conference in Boston, where Dynatrace presented as one of the platinum partners. RHEL 8 brings a number of long-awaited enhancements to the RHEL family: refreshed system kernel, improved system performance and security, application streams, and numerous ot

Tuning 157

Tuning Cloud Technology Technology 157