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 leverages elasticity of the cloud by design?—?both The steps can be arbitrary Python code. Metaflow is a cloud-native framework.

Open Source 238

Open Source AWS Infrastructure Energy 238

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 241

Latency Cache Java Traffic 241

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

Dynatrace

SEPTEMBER 20, 2019

Welcome back to the blog series in which we show how you can easily solve three common problem scenarios by using Dynatrace and xMatters Flow Designer. The new version of the application is deployed in the green environment and tested for functionality and performance. Step 6 — Flow Designer rolls back through keptn.

Systems 38

Systems Traffic DevOps Database 38

Dynatrace

APRIL 21, 2022

The Azure Well-Architected Framework is a set of guiding tenets organizations can use to evaluate architecture and implement designs that will scale over time. Design efficient use of your computing resources as demand changes and technologies evolves. Design applications to recover from errors gracefully. Reliability.

Azure 246

Azure Monitoring Virtualization Metrics 246

Smashing Magazine

SEPTEMBER 2, 2021

JavaScript Design Patterns. Knights of the Flexbox Table is another well-designed interactive course to help you learn the different aspects of the flexbox specification. On design systems, CSS/JS and UX. CSS Selectors Cheatsheet is an interactive exercise to test your understanding of CSS selectors. CSS Flexbox.

Development 145

Development Games Education Programming 145

Smashing Magazine

NOVEMBER 11, 2021

From Good To Great In Dashboard Design: Research, Decluttering And Data Viz. From Good To Great In Dashboard Design: Research, Decluttering And Data Viz. Tossing out suboptimal parts of our design can be a daunting task, especially after you’ve invested hours of work into it. Mediocre vs Great Dashboard Design.

Design 113

Design Best Practices Efficiency Testing 113

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

The Agile Manager

MARCH 31, 2025

The big up front design phase that lasts for months (if not quarters) is going to be a tough sell when the AI brought to bear is touted as a major time saver: in the minds of the buyers, either the machines speed things up or they dont. This has ramifications for the consulting business model. Not the customers business.

Technology 40

Technology Technology Design Engineering 40

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. As of June 2021, Amazon currently offers 11 certifications.

AWS 246

AWS Best Practices Cloud Analytics 246

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

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

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

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 leverages elasticity of the cloud by design?—?both The steps can be arbitrary Python code. Metaflow is a cloud-native framework.

Open Source 135

Open Source AWS Infrastructure Energy 135

The Netflix TechBlog

MARCH 6, 2019

Video encoding is what MezzFS was originally designed for and remains one of its canonical use cases, so we’ll focus on video encoding to describe the problem that MezzFS solves. Rerun a batch of replays We collect replays from actual MezzFS mounts in production, and we rerun large batches of replays for regression and performance tests.

Media 218

Media Storage Processing Cache 218

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. specification and the final version. final specification released 2018).

Servers 172

Servers Testing Best Practices Java 172

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

O'Reilly

OCTOBER 19, 2021

In effect, the engineer designs and builds the world wherein the software operates. 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. An Overarching Concern: Correctness and Testing. Why did something break?

DevOps 145

DevOps Software Engineering Open Source Infrastructure 145

Sutter's Mill

MARCH 30, 2025

Background in a nutshell: In C++, code that (usually accidentally) exercises UB is the primary root cause of our memory safety and security vulnerability issues. And its designed to be super adoptable to bring existing code forward: Many of the improvements are adoptable without any code changes (really!)

C++ 70

C++ Programming Code Google 70

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

Smashing Magazine

SEPTEMBER 8, 2021

You might know it already, but perhaps not yet: we regularly run friendly online workshops around front-end and design. 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. Iris Lješnjanin. 2021-09-08T08:00:00+00:00.

Ecommerce 80

Ecommerce Design Testing 80

The Morning Paper

MARCH 15, 2020

Before designing a better system for detecting partial failures, the authors set about understanding their nature and causes through a study of five software systems (ZooKeeper, Cassandra, HDFS, Apache, and Mesos). Heartbeat and HTTP-based tests are too generic and too divorced from the monitored process’ state.

Systems 98

Systems Software Software Programming 98

Smashing Magazine

JULY 22, 2021

You can see that in the workday I’ve marked the dark blue as ‘getting tasks done’, which represented product design for my case. Exercise/outdoors. Design and development. In my records for the entire day, I put one color code for my work hours and will have a separate diagram specifically to break up my work hours. Networking.

Games 141

Games Availability Software Software 141

Alex Russell

FEBRUARY 21, 2023

By mandating proof of developer enthusiasm for features, extensive test suites, and accurate specifications, the catch-up process has been put on rails for Apple. This lack of transparency is by design and provides Apple deniability while simultaneously setting low expectations, making them easier to exceed. But needs must.

Energy 90

Energy Games Engineering Design 90

Percona

JULY 6, 2023

then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. Next is the table definition.

Best Practices 111

Best Practices Tuning Testing Database 111

O'Reilly

DECEMBER 12, 2023

This ruling in itself raises many questions: how much creativity is needed, and is that the same kind of creativity that an artist exercises with a paintbrush? I can also ask for a reading list about plagues in 16th century England, algorithms for testing prime numbers, or anything else.

Artificial Intelligence 132

Artificial Intelligence Media Google Processing 132

Percona

AUGUST 30, 2023

This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. Here is an example of the function definition to test the function-level settings. This is the level at which decisions on whether to use data_checksums need to be taken.

Database 120

Database Servers Open Source Tuning 120

Sutter's Mill

FEBRUARY 17, 2020

Thank you to the following for their feedback on drafts of this material: Howard Hinnant (lead designer and author of move semantics), Jens Maurer, Arthur O’Dwyer, Geoffrey Romer, Bjarne Stroustrup, Andrew Sutton, Ville Voutilainen, Jonathan Wakely. This post is an attempt to shed light on that situation.

C++ 98

C++ Testing Design Programming 98

Sutter's Mill

JANUARY 11, 2021

assert The C-style assert is a macro that is evaluated at execution time (hopefully enabled at least during your unit testing! A failed assertion means that we checked and found the tested variables to be in an unexpected state, which means at least that part of the program’s state is corrupt. see question 4) if NDEBUG is not set.

C++ 81

C++ Programming Code Testing 81

The Morning Paper

JULY 4, 2019

This is a fascinating paper from members of Netflix’s Resilience Engineering team describing their chaos engineering initiatives: automated controlled experiments designed to verify hypotheses about how the system should behave under gray failure conditions, and to probe for and flush out any weaknesses. Safeguards.

Latency 77

Latency Engineering Metrics Traffic 77

Percona

DECEMBER 5, 2023

The scenario Service considerations In this exercise, we wanted to perform a major version upgrade from PostgreSQL v12.16 Percona Distribution for PostgreSQL provides the best and most critical enterprise components from the open-source community, in a single distribution, designed and tested to work together.

Database 103

Database Traffic C++ Servers 103

MachMetrics

JANUARY 4, 2019

The PageSpeed Module is one of several free Google tools designed to help assess and improve page load speed times. This is technical documentation designed for developers, though, so if you’re new to all this, be prepared for a how-to guide that isn’t exactly a hand-holding step by step with visual references.

Speed 60

Speed Website Open Source Google 60

Sutter's Mill

MAY 1, 2023

Examples like the following now work… see test file pure2-break-continue.cpp2 for more examples. For example, see the test case pure2-types-order-independence-and-nesting.cpp2. On the cppfront wiki, see the Design Note “operator=, this & that” for details. this defaults to the current type.

C++ 97

C++ Virtualization Lambda Code 97

HammerDB

JULY 16, 2021

The way we measure this is through a ‘performance profile’ This simply means that we run a series of tests incrementally increasing the system load until we find the peak performance. Plotting these data points enables us to understand the scalability of the database software being tested on that system. and MySQL 8.0.25

Virtualization 58

Virtualization Performance C++ Database 58

The Agile Manager

AUGUST 31, 2021

Although completing a story may require contribution from people in different roles - QA analyst and developer and experience designer, for example - each person is still responsible for the entire outcome of the story. An Agile story is an expression of end-to-end business need. Good managers know how to work the problem and solution space.

Metrics 52

Metrics Design Engineering C++ 52

HammerDB

APRIL 19, 2023

Instead, focus on understanding what the workloads exercise to help us determine how to best use them to aid our performance assessment. Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. We will not concern ourselves with the raw throughput of workload.

Performance 55

Performance Benchmarking Cache Storage 55

ScaleOut Software

AUGUST 20, 2020

Development is fast and straightforward using standard object-oriented techniques, and the test/debug cycle is kept short by making use of a mock environment running on the developer’s workstation. Real-time digital twins are designed to be easy to develop and modify. What Are Real-Time Digital Twins?

Cloud 52

Cloud Development Analytics Azure 52