DZone

APRIL 3, 2020

Making sense of the average, standard deviation and percentiles in performance testing reports. There are certain performance testing metrics that are essential to understand properly in order to draw the right conclusions from your tests. These metrics require some basic understanding of math and statistics, but nothing too complicated. The issue is that if you don’t understand well what each one means or what they represent, you’ll come to some very wrong conclusions.

Performance Testing 224

Performance Testing Metrics Testing Performance 224

Dynatrace

APRIL 3, 2020

Dynatrace news. If you’ve watched the evolution of OneAgent closely in our release notes and blog posts, you’ll know that we’re highly focused on security. Because OneAgent operates on your critical hosts where the services that comprise your business applications are located, Dynatrace must ensure the highest possible security in monitoring the operating systems and services that run on these hosts.

Operating System 185

Operating System Monitoring Systems Code 185

The Netflix TechBlog

APRIL 2, 2020

By Haruka Miyagawa & Kylee Peña Continue reading on Netflix TechBlog ».

242

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High Scalability

MARCH 30, 2020

Who's Hiring? InterviewCamp.io has hours of system design content. They also do live system design discussions every week. They break down interview prep into fundamental building blocks. Try out their platform. Scrapinghub is hiring a Senior Software Engineer (Big Data/AI). You will be designing and implementing distributed systems : large-scale web crawling platform, integrating Deep Learning based web data extraction components, working on queue algorithms, large datasets, creating a developm

Education 105

Education Software Engineering Engineering Big Data 105

DZone

APRIL 1, 2020

While testing the functionality for your website, especially web elements such as radio button, text boxes, drop-down, etc., you need to make sure that you can access these elements. Selenium locators serve this exact purpose, by using this command we can identify these web elements, DOM (Document Object Model), to perform Selenium test automation through our scripts.

Website 194

Website Testing Performance 194

Dynatrace

MARCH 31, 2020

Dynatrace news. Dynatrace Real User Monitoring provides you with full visibility into your real users’ actions and behavior in your applications. Application detection rules enable you to define the specific transactions that comprise your RUM applications. More precisely, application detection rules allow you to group the user actions that are automatically detected by Dynatrace in such a way that the actions serve as a representation of your application from the customer perspective and

Traffic 173

Traffic Monitoring Mobile Design 173

Tasktop

APRIL 2, 2020

The pandemic affects everyone. Understanding previous technological revolutions will focus your digital strategy and help you thrive through the most turbulent economic event of our lifetime. A period of frenzied growth is turning into a mass extinction event for those companies that do not learn how to connect business operations to software delivery.

Government 109

Government Innovation Strategy Technology 109

DZone

MARCH 31, 2020

The true power of cloud computing lies in the way it can be optimized for maximum performance and efficiency. While it wasn’t always possible to run an efficient environment while maximizing performance with on-premise servers and data centers, cloud clusters are particularly flexible in this respect. From the first time you migrate to the cloud, you have the option to refactor your apps and solutions to fully take advantage of the flexibility.

AWS 171

AWS Performance Scalability Efficiency 171

Dynatrace

APRIL 2, 2020

Dynatrace news. For two decades, Dynatrace NAM—Network Application Monitoring, formerly known as DC RUM—has been successfully monitoring the user experience of our customers’ enterprise applications. If you’re a NAM customer, you’ve already heard Dynatrace announce that the end of NAM support is coming. We’ve put together a comprehensive microsite that explains the technical rationale behind this decision and the migration paths to new Dynatrace offerings.

Network 167

Network Traffic Monitoring Java 167

TechBeacon Testing

MARCH 31, 2020

What's the top language for writing software test automation scripts? Your guess is as good as anyone else's, because there's no agreement on this. And that's unfortunate. You would think by now we testers would have settled the debate.

Java 101

Java Testing Software Software 101

Randon ASCII

MARCH 30, 2020

A twitter discussion on build times and source-file sizes got me interested in doing some analysis of Chromium build times. I had some ideas about what I would find ( lots of small source files causing much of the build time ) but I inevitably found some other quirks as well, and I’m landing some improvements. I learned how to use d3.js to create pretty pictures and animations, and I have some great new tools.

C++ 87

C++ Code Open Source Programming 87

DZone

APRIL 2, 2020

Chaos Engineering is a way to test a production software system's robustness by simulating unusual or disruptive conditions. For many people, however, the transition from learning Chaos Engineering to practicing it on their own systems is daunting. It sounds like one of those big ideas that require a fully-equipped team to plan ahead. Well, it doesn't have to be.

Open Source 139

Open Source Engineering Systems Cloud 139

Dynatrace

APRIL 1, 2020

Dynatrace news. React Native is a development framework for native iOS and Android apps. With its basis in modern web technologies, React Native enables you to leverage existing web development experience and significantly reduces development time for cross-platform mobile apps. React Native is already successfully being used in production environments by Shopify , Discord , Walmart, and many other companies.

Mobile 153

Mobile Monitoring Technology Technology 153

MachMetrics

APRIL 3, 2020

If you’re anything like us, you’ve been cooped up at home for longer than you’d prefer, and have been staring at a computer screen for a good portion of that time. Need a good distraction? Luckily we’ve recommended some of the best web performance books to read while stuck at home. First off, we truly hope everyone reading this is safe and healthy.

Speed 85

Speed Performance Best Practices Website 85

Testsigma

APRIL 2, 2020

Making a decision to start automation is easy but choosing an appropriate tool for automation is not. There are teams that are spending a lot on hiring new manual testing resources but find it hard to invest in automation. The reasons could be many. Sometimes, teams spend a lot of time exploring tools and get so overwhelmed with the information out there that they give up on the idea of automation altogether.Other times, these teams choose a generic tool, start with automation but then, never ge

Testing 81

Testing Programming Mobile Operating System 81

Tasktop

APRIL 2, 2020

Since publishing Project to Product at the end of 2018, one of my biggest frustrations has been seeing organizations investing significant time and resources in reinventing the wheel. To those who considered the digital transformation failures summarized in the book, it was obvious back then that there was little runway left before we started seeing the effects of the Turning Point wipe out organizations that were not prepared.

Programming 76

Programming Metrics DevOps Software 76

Testlodge

APRIL 2, 2020

Adhoc testing is an informal approach to testing that uncovers defects or performance issues that wouldn’t otherwise be found using scripted testing. This type of testing does not involve a strict procedure or any expected results; therefore it is considered a type of unstructured testing. With structured testing, the tester follows a set of scripts or test cases.

Testing 73

Testing Code Systems Performance 73

The Polyglot Developer

APRIL 1, 2020

MongoDB Stitch can do quite a few things, some of which include GraphQL , functions as a service, and triggers. However, another awesome feature is in its ability to host static HTML, JavaScript, and CSS, the core components to any static website. Static websites are becoming more popular due to their performance and how inexpensive it is to host them at scale.

Website 72

Website Performance 72

Sutter's Mill

APRIL 1, 2020

These short tips are useful to remember when writing high-throughput code. You may already know most of them, and if so then please spread the word — friends don’t let friends write performance bottlenecks. In a high-throughput hot loop: Avoid holding locks or other resources, unless you know it won’t block another performance-sensitive thread. Definitely don’t acquire any new locks or other resources!

Games 76

Games Code Performance C++ 76

CSS - Tricks

APRIL 1, 2020

The other day, I realized that web performance is an enormous topic covering so very much — from minimizing assets to using certain file formats, it can be an awful lot to keep in mind while building a website. It’s certainly far too much for me to remember! So I made a web performance checklist. It’s a Notion doc that I can fork and use to mark completed items whenever I start a new project.

Performance 52

Performance AWS Website 52

InfoQ

MARCH 31, 2020

GitHub completed its internal investigation about what caused multiple service interruptions that affected its service last February for over 8 hours. The root cause for this was a combination of unexpected database load variation and database configuration issues. By Sergio De Simone.

Database 60

Database Availability Scalability DevOps 60

John McCalpin

APRIL 2, 2020

This was a keynote presentation at the “2nd International Workshop on Performance Modeling: Methods and Applications” (PMMA16), June 23, 2016, Frankfurt, Germany (in conjunction with ISC16 ). The presentation discusses a family of simple performance models that I developed over the last 20 years — originally in support of processor and system design at SGI (1996-1999), IBM (1999-2005), and AMD (2006-2008), but more recently in support of system procurements at The Texas Advance

Benchmarking 59

Benchmarking Performance Latency Architecture 59

The Agile Manager

MARCH 31, 2020

Distributed software development has been practiced for decades. Companies with global footprints were experimenting with this at least as far back as the 1970s. Skilled labor, global communication networks and collaborative tools made "offshore development" possible at scale from the mid-1990s onward. Improved skills, faster networks and more sophisticated collaboration tools have made distributed development practical for very complex software initiatives.

Programming 59

Programming Efficiency Network Technology 59

Addy Osmani

APRIL 2, 2020

This tip covers how to measure modern UX metrics on WebPageTest using the Custom Metrics feature.

Metrics 77

Metrics 77

Testsigma

MARCH 30, 2020

In these tough times, the well-being of customers and employees is the most important for every organization. During this unexpected crisis, there are teams working from home while there are few workplaces that have reduced workforce. It is a given that the thoughts, efficiency and availability of your team will not be the same as you may expect otherwise.

Testing 53

Testing DevOps Education Efficiency 53

ScaleOut Software

APRIL 3, 2020

Especially at this time of crisis when minutes count as the states scramble to obtain critical medical supplies, it’s vitally important to be able to track many thousands of assets, such as masks, gloves, and ventilators, and quickly stage them where they are needed. What’s missing is a flexible, fast, and easy-to-use software system that can be quickly adapted to track these assets in real time and provide immediate answers for logistics managers.

Logistics 52

Logistics Analytics Scalability Cloud 52

Percona Community

APRIL 1, 2020

We have recently talked about how to deploy a Tarantool Cartridge application. However, an application’s life doesn’t end with deployment, so today we will update our application and figure out how to manage topology, sharding, and authorization, and change the role configuration. Feeling interested? Please continue reading under the cut.

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52

n0derunner

MARCH 30, 2020

Installing Disk-Speed (diskspd). Get diskpd binary from Microsft : [link] Manual is here: [link] Agree to License Extract Zip file (DocumentsDiskspd-2.0.21a) open Terminal/Command Prompt cd to the Extracted directory cd to AMD64 Overview diskspd operates on windows filesystems, and will read / write to one or more files concurrently. The NULL byte problem By default, … The post Microsoft diskspd.

Testing 52

Testing Speed Storage Benchmarking 52

Testsigma

MARCH 31, 2020

The world is witnessing challenging times, and I sincerely hope that you, your loved ones, and your colleagues are taking precautionary measures and are staying safe. It is also encouraging to see the world’s resilience as it comes together to fight this rising threat. I wanted to personally reach out and assure you that in the light of the current circumstances, we are taking all possible steps to ensure the safety of our employees as well as maintain uninterrupted services for our customers.

Website 52

Website Testing Availability Monitoring 52

ScaleOut Software

APRIL 3, 2020

Especially at this time of crisis when minutes count as the states scramble to obtain critical medical supplies, it’s vitally important to be able to track many thousands of assets, such as masks, gloves, and ventilators, and quickly stage them where they are needed. What’s missing is a flexible, fast, and easy-to-use software system that can be quickly adapted to track these assets in real time and provide immediate answers for logistics managers.

Logistics 52

Logistics Analytics Scalability Cloud 52

Edge Perspectives

APRIL 2, 2020

I want to let all the loyal subscribers who have subscribed to my blog posts here at Typepad, that I have decided to move my blog posts to my personal website - they can be accessed here [link]   Please subscribe there, so that you can receive notification of future blog posts. There are several new blog posts already there, including some new poetry - Pandemic Paradox - and a perspective on Viral Flows.

Website 53

Website 53

n0derunner

MARCH 30, 2020

Installing Disk-Speed (diskspd). Get diskpd binary from Microsft : [link] Manual is here: [link] Agree to License Extract Zip file open Terminal/Command Prompt cd to the Extracted directory cd to AMD64 Overview diskspd operates on windows filesystems, and will read / write to one or more files concurrently. The NULL byte problem By default, when … The post Microsoft diskpd.

Testing 52

Testing Speed Storage Benchmarking 52

Testsigma

MARCH 30, 2020

The COVID-19 pandemic has disrupted businesses around the globe and across business sectors. Weathering the economic fallout will be hard for many, including startups that may have to drastically alter their day-to-day operations. If you’re in a similar situation, we want to help you hold on to the tools of your trade so that you can continue supporting your clients in turn.

DevOps 52

DevOps Testing Cloud Virtualization 52

SQL Performance

MARCH 31, 2020

SQL Server 2019 Cumulative Update #4 is available, with 50 enhancements. The build number is 15.0.4033.1. The post SQL Server 2019 Cumulative Update #4 appeared first on SQLPerformance.com.

Servers 40

Servers Availability 40