CSS Wizardry

NOVEMBER 3, 2020

Any time you run a test with WebPageTest, you’ll get this table of different milestones and metrics. Note the bottom row shows me the Standard Deviation of the tests’ results. The whole point of the exercise that follows is to allow me to move quickly, spotting patterns from afar, and not having to do any slow or meticulous work yet.

Speed 337

Speed Ecommerce Metrics Analytics 337

O'Reilly

FEBRUARY 13, 2025

Designing an effective AI learning path that worked with the Head First methodwhich engages readers through active learning and interactive puzzles, exercises, and other elementstook months of intense research and experimentation. A learner who uses AI to do the exercises will struggle to build those skills.

C++ 69

C++ Code Design Media 69

DZone

NOVEMBER 9, 2021

Saving several hours preparing and doing a design review will cost hundreds (if not thousands of hours) of fixing issues down the road.nn> unit testsnnI don’t believe that I have to say that in 2021, but I have never seen a quality product without unit tests. We live in a time when everybody is irked by manual testing.

Software 245

Software Software Code Design 245

O'Reilly

FEBRUARY 11, 2025

OReilly author Andrew Stellman recommends several exercises for learning to use AI effectively. A good next step is asking an AI assistant to generate unit tests, either for existing code or some new code (which leads to test-driven development). We already know how to build some evaluation suites that test AIs reliability.

Programming 93

Programming Code Software Software 93

Dynatrace

APRIL 14, 2020

Across the two days, there were sixteen new sessions – delivered for the first time – based on content derived from lab exercises developed and delivered by working with Dynatrace experts and our Partner communicate to showcase Dynatrace’s newest features. Remove all Perform infrastructure quickly to save on costs after the event.

AWS 245

AWS Lambda Performance Infrastructure 245

Dynatrace

JUNE 27, 2022

These development and testing practices ensure the performance of critical applications and resources to deliver loyalty-building user experiences. Because pre-production environments are used for testing before an application is released to end users, teams have no access to real-user data. What is synthetic monitoring?

Best Practices 244

Best Practices Monitoring Wireless Traffic 244

Dynatrace

JUNE 1, 2023

Fitness app : The fitness app should offer a response time of less than 500 milliseconds for exercise tracking and data recording. This SLO enables a smooth and uninterrupted exercise-tracking experience. Such testing makes it easier to detect any potential issues before they impact real users.

Latency 245

Latency Website Traffic DevOps 245

Dynatrace

DECEMBER 10, 2020

I recently joined two industry veterans and Dynatrace partners, Syed Husain of Orasi and Paul Bruce of Neotys as panelists to discuss how performance engineering and test strategies have evolved as it pertains to customer experience. Dynatrace news. This blog summarizes our great conversation for the posed questions.

Strategy 245

Strategy Performance Logistics Monitoring 245

The Netflix TechBlog

DECEMBER 3, 2019

The infrastructure should allow them to exercise their freedom as data scientists but it should provide enough guardrails and scaffolding, so they don’t have to worry about software architecture too much. It allows data scientists to develop and test code quickly on your laptop, similar to any Python script.

Open Source 236

Open Source AWS Infrastructure Energy 236

The Netflix TechBlog

SEPTEMBER 8, 2020

Migration Testing Infrastructure Our monolith had been around for many years and hadn’t been created with functional and unit testing in mind, so those were independently bolted on by each UI team. For the migration, testing was a first-class citizen. Replay Testing Enter replay testing.

Latency 239

Latency Cache Java Traffic 239

Dynatrace

MARCH 16, 2021

It has now become a parallel exercise in the same CLI. And if you’re not an existing Dynatrace user, we encourage you to spin up a free trial and test drive the integration for yourself. Step 2: Plan. To get started, get the integration here.

Code 246

Code Monitoring Best Practices Infrastructure 246

Dynatrace

MAY 28, 2020

After a new build gets deployed and automated tests executed, SLIs are evaluated against their SLOs and, depending on that result, a build is considered good (promoted) or bad (rolled back). “ The app description and supporting files such as load testing scripts are on the Keptn Example GitHub. This is what this blog is all about.

Engineering 270

Engineering Performance Metrics Best Practices 270

Dynatrace

MARCH 22, 2021

Many organizations already employ DevOps, an approach to developing software that combines development and operations in a continuous cycle to build, test, release, and refine software in an efficient feedback loop. Traditionally, application security testing sits as a discrete stage between development and operations.

DevOps 235

DevOps Speed Infrastructure Software 235

DZone

SEPTEMBER 11, 2019

Improving Testing and Fuzz Development with Coverage Analysis. In my previous post, we covered using bncov to do open-ended coverage analysis tasks to inform our testing. If we want to improve our confidence, we can add steps to exercise more of the code. Did someone say fuzzy?

Programming 113

Programming Testing Code Performance 113

The Agile Manager

FEBRUARY 28, 2025

Product testing practices havent changed much in thirty years; software testing practices havent changed much in twenty. The benefit of having specifications, whether for the threading of fasteners or scalability of a method, is that they enable components to be individually tested to see whether they meet expectations.

Software 40

Software Software Code Testing 40

Dynatrace

APRIL 5, 2024

However, it’s essential to exercise caution: Limit the quantity of SLOs while ensuring they are well-defined and aligned with business and functional objectives. Error budget burn rate = Error Rate / (1 – Target) Best practices in SLO configuration To detect if an entity is a good candidate for strong SLO, test your SLO.

Efficiency 264

Efficiency Traffic Tuning Metrics 264

Smashing Magazine

SEPTEMBER 2, 2021

CSS Selectors Cheatsheet is an interactive exercise to test your understanding of CSS selectors. The first few are fairly easy but the exercises increase in difficulty as you get into more advanced selectors like lesser-used pseudo-classes. TypeScript Exercises. Image source: TypeScript Exercises ).

Development 145

Development Games Education Programming 145

Dynatrace

DECEMBER 5, 2023

Don’t assume that applications are free of vulnerabilities because your organization has tooling — such as application security testing — and processes in place. Incorporate planned exercises and workshops to examine and enhance your organization’s readiness through feedback loops.

Best Practices 279

Best Practices Government C++ Education 279

Dynatrace

MARCH 14, 2022

As patient care continues to evolve, IT teams have accelerated this shift from legacy, on-premises systems to cloud technology to more build, test, and deploy software, and fuel healthcare innovation. Amid so much change, teams can no longer rely on time-consuming, manual approaches for building, testing, operating, and upgrading software.

Healthcare 246

Healthcare Artificial Intelligence Innovation Strategy 246

Dynatrace

JUNE 1, 2023

Fitness app : The fitness app should offer a response time of less than 500 milliseconds for exercise tracking and data recording. This SLO enables a smooth and uninterrupted exercise-tracking experience. Such testing makes it easier to detect any potential issues before they impact real users.

Traffic 173

Traffic Website Latency DevOps 173

Testlodge

AUGUST 9, 2023

Basis path testing in software testing is a white box method where the tester examines the codebase to identify all possible paths that could be taken by the user to achieve their aims. These paths are then written as test cases to ensure all the different identified scenarios in the main branches are covered.

Testing 75

Testing Software Software C++ 75

Dynatrace

APRIL 21, 2022

Once you have and understand this data, you can identify issues, find opportunities for improvement, and eliminate risks before you go through a costly migration exercise. Some principles Microsoft provides to help organizations across this area include: Define and test availability targets such as service level agreements (SLAs) and SLOs.

Azure 246

Azure Monitoring Virtualization Metrics 246

Dynatrace

SEPTEMBER 20, 2019

The new version of the application is deployed in the green environment and tested for functionality and performance. Once the testing results are successful, application traffic is routed from blue to green. Let’s assume your team has just pushed new code and it passed pre-deployment testing.

Systems 38

Systems Traffic DevOps Database 38

Dynatrace

SEPTEMBER 30, 2021

Hosted and moderated by Amazon, AWS GameDay is a hands-on, collaborative, gamified learning exercise for applying AWS services and cloud skills to real-world scenarios. Take a trial test at Linux Academy if it’s applicable to the cert you have in mind. Read any Amazon whitepapers that are relevant to the cert you seek.

AWS 246

AWS Best Practices Cloud Analytics 246

The Netflix TechBlog

FEBRUARY 10, 2021

Depending on which solution you choose, you could be inheriting a ton of issues or something that is battle tested. Even today, as the Hawkins team, we run through all of the above exercises and more to ensure that the design system is robust and has the level of support the engineering organization can trust.

Design 235

Design Systems Engineering Entertainment 235

Scalegrid

APRIL 16, 2020

Use Follower Clusters keep two independent database systems (of the same type) in sync so you can analyze, optimize and test app performance for MySQL, PostgreSQL and MongoDB® database. Check out the How to Get Started section below to learn how to set up a VPC or VNET infrastructure for your deployment at ScaleGrid. Expert Tip. No problem.

Cloud 242

Cloud Azure AWS Database 242

Smashing Magazine

OCTOBER 13, 2021

You can always ask a question live , you can share your screen and get immediate feedback, and you can work on group exercises with people around the world. Live discussions and interactive exercises are at the very heart of every workshop, with group work, homework, reviews and live interaction with people around the world.

Design 105

Design Programming Testing Systems 105

Testsigma

SEPTEMBER 15, 2021

To ensure our site performs uniformly across multiple browsers, we perform cross-browser testing. As the name suggests, cross-browser testing is a testing approach that ensures our website/app performs as intended across various devices and browser-OS combinations. 5 Signs You Need to Choose Cross-Browser Testing on the Cloud.

Cloud 79

Cloud Testing Testing Tools Website 79

The Netflix TechBlog

DECEMBER 3, 2019

The infrastructure should allow them to exercise their freedom as data scientists but it should provide enough guardrails and scaffolding, so they don’t have to worry about software architecture too much. It allows data scientists to develop and test code quickly on your laptop, similar to any Python script.

Open Source 134

Open Source AWS Infrastructure Energy 134

The Netflix TechBlog

OCTOBER 14, 2021

The end result is the first major update to BetterTLS since its first release : a new suite of tests to exercise TLS implementations’ certificate path building. As service owners, having test suites that can answer these questions can guide decision making. This is the primary feature of interest in this test suite.

Servers 170

Servers Testing Best Practices Java 170

Simform

DECEMBER 17, 2019

Business logic can be written and tested in many ways to build a substantial software. However, this can turn into a never-ending exercise since you may find yourself going through the same path and around the same starting point.

Best Practices 52

Best Practices Testing Technology Technology 52

The Morning Paper

NOVEMBER 3, 2019

On the exact same hardware, the benchmark suite is then used to test 36 Linux release versions from 3.0 Testing against real-world workloads (Redis, Apache, Nginx), disabling the 11 root causes results in maximum performance improvements in these three applications of 56%, 33%, and 34% respectively. Headline results.

Performance 108

Performance Benchmarking Tuning Hardware 108

O'Reilly

OCTOBER 19, 2021

The applications must be integrated to the surrounding business systems so ideas can be tested and validated in the real world in a controlled manner. but to reference concrete tooling used today in order to ground what could otherwise be a somewhat abstract exercise. An Overarching Concern: Correctness and Testing.

DevOps 145

DevOps Software Engineering Infrastructure Open Source 145

Particular Software

SEPTEMBER 11, 2023

The thing is, that Marketing component probably talks to other components itself, which then would have to go through the same migration or duplication exercise (together with the components they talk to). Imagine if any issues arose during testing or ( shudder ) in production, and you had to pinpoint where the problem lay.

Cloud 126

Cloud Systems Azure Airlines 126

SQL Performance

APRIL 14, 2021

I’ll do my testing in tempdb, enabling I/O and time statistics: SET NOCOUNT ON ; USE tempdb ; SET STATISTICS TIME , IO ON ; Limitations of earlier ideas. Use the following code to test the function with the variable assignment technique: DECLARE @n AS BIGINT ; SELECT @n = n FROM dbo. Well, he did , and it’s fascinating!

C++ 112

C++ Servers Testing Code 112

Sutter's Mill

JULY 29, 2024

Mar 16, 2024), new things include: A “tersest” function syntax, e.g.: :(x,y) x>y Support all C++23 and draft C++26 headers that have feature test flags Tracked contracts changes in WG21 (e.g., Support all C++23 and draft C++26 headers that have feature test flags. Jul 10, 2024), new things include: Added.

C++ 117

C++ Lambda Code Open Source 117

O'Reilly

JUNE 13, 2023

It also generated a short program that implemented the widely used Miller-Rabin primality test. Specifically, I was compelled to re-try my prime test. It didn’t generate any code, but provided a link to the Wolfram Alpha result page that described how to test for primality.

Google 120

Google Programming Database Testing 120