Thu.Feb 25, 2021

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What is synthetic monitoring?

Dynatrace

Dynatrace news. To give your customers a top-quality digital experience, it’s important to make sure your applications are always working properly. Synthetic monitoring can help to confirm your applications are performing as intended and, in the event they’re not, help you quickly figure out what’s going on. Here’s a look at what synthetic monitoring is, how it’s different from real-user monitoring, and why it matters to your business.

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Packaging award-winning shows with award-winning technology

The Netflix TechBlog

By Cyril Concolato Introduction In previous blog posts, our colleagues at Netflix have explained how 4K video streams are optimized , how even legacy video streams are improved and more recently how new audio codecs can provide better aural experiences to our members. In all these cases, prior to being delivered through our content delivery network Open Connect , our award-winning TV shows, movies and documentaries like The Crown need to be packaged to enable crucial features for our members.

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Performance Metrics of Your QA Team

DZone

QA performance metrics are essential for eliminating inefficient strategies and improving internal processes. They also enable managers to track the progress of their QA team over time and make data-driven decisions about future projects. Your QA performance metrics process should identify if goals are being met as and analyze resources to make sure they are producing to their maximum capacity.

Metrics 144
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Update Array Elements in a Document with MQL Positional Operators

The Polyglot Developer

MongoDB offers a rich query language that’s great for create, read, update, and delete operations as well as complex multi-stage aggregation pipelines. There are many ways to model your data within MongoDB and regardless of how it looks, the MongoDB Query Language (MQL) has you covered. One of the lesser recognized but extremely valuable features of MQL is in the positional operators that you’d find in an update operation.

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Software Testing and QA: Learning Through Humor

DZone

We all make mistakes. Even the most experienced and professional software developers do let a couple of bugs slip through once in a while. However, it's not making mistakes that is the issue, but having no one to point them out for you to fix them. Instead of getting serious about the importance of software testing & QA for the success of your product or service, let’s rather indulge in a little bug-hunting humor.

Software 124
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GotW #100 Solution: Preconditions, Part 1 (Difficulty: 8/10)

Sutter's Mill

This special Guru of the Week series focuses on contracts. We’ve seen how postconditions are directly related to assertions (see GotWs #97 and #99 ). So are preconditions, but that in one important way makes them fundamentally different. What is that? And why would having language support benefit us even more for writing preconditions more than for the other two?

C++ 45
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Top 7 Cross Browser Testing Tools in 2021

DZone

In today’s fast-paced market, web apps run on several browsers (Edge, Firefox, Google Chrome, Safari, etc.) on varied desktop or mobile devices with particular screen settings. This is the reason why we need to execute cross-browser tests. Cross Browser Testing scrutinizes the compatibility of a website or web apps on varied operating systems, devices, and browsers.

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Skeptics Who Recommend Cross Browser Testing

DZone

Who recommends cross browser testing to their organizations? In this series, we discuss the results of the Applitools Ultrafast Cross Browser Hackathon. Today, we will explain how those who were skeptics about cross browser testing would recommend that their organizations run Applitools Ultrafast Grid for cross browser testing.

Testing 113
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Beyond REST

The Netflix TechBlog

Rapid Development with GraphQL Microservices by Dane Avilla The entertainment industry has struggled with COVID-19 restrictions impacting productions around the globe. Since early 2020, Netflix has been iteratively developing systems to provide internal stakeholders and business leaders with up-to-date tools and dashboards with the latest information on the pandemic.

Database 194
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A look behind the scenes of AWS Lambda and our new Lambda monitoring extension

Dynatrace

Dynatrace news. Since its introduction by AWS in 2014, AWS Lambda has revolutionized the compute space and boosted the entire serverless movement. Gartner predicts that by 2025, 50% of all global enterprises will have deployed serverless function platforms as a service (fPaaS), up from only 20% today. Dynatrace has offered a Lambda code module for Node.js since 2017, and many customers have used it with great success while we collected requirements for the next iteration of our Lambda extension.

Lambda 233
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Web Performance for Product Managers

Speed Curve

I love conversations about performance, and I'm fortunate enough to have them a lot. The audience varies. A lot of the time it’s a front-end developer or head of engineering, but more and more I’m finding myself in great conversations with product leaders. As great as these discussions can be, I often walk away feeling like there was a better way to streamline the conversation while still conveying my passion for bringing fellow PMs into the world of webperf.

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What programming languages does HammerDB use and why does it matter?

HammerDB

HammerDB is a load testing and benchmarking application for relational databases. All the databases that HammerDB tests implement a form of MVCC (multi-version concurrency control). This helps to minimise locking allowing multiple sessions to access the same data at the same time. On high-performance multi-core systems all the supported databases can return performance in the many millions of transactions per minute.