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 292

Speed Ecommerce Metrics Analytics 292

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 232

Open Source AWS Infrastructure Energy 232

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 233

Latency Cache Java Traffic 233

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 160

DevOps Speed Infrastructure Best Practices 160

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 86

Design Programming Testing Systems 86

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

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 196

Azure Monitoring Virtualization Metrics 196

Testsigma

JANUARY 6, 2022

So, we thought of sharing some tips and tricks with the testing community that is working from home, aiming to improve their working experience overall. This is critical since even if a small detail is missed the results can be catastrophic from a testing perspective. Maintain continuous team collaboration.

Testing 52

Testing Internet Internet Testing Tools 52

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 185

Strategy Performance Logistics Monitoring 185

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 234

Healthcare Artificial Intelligence Innovation Strategy 234

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 134

Open Source AWS Infrastructure Energy 134

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

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 217

AWS Best Practices Analytics Cloud 217

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 70

Ecommerce Design Testing 70

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 165

Servers Testing Best Practices Java 165

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 79

Energy Games Engineering Design 79

The Agile Manager

OCTOBER 31, 2022

It’s also awkward, an exercise of the blindfolded people describing the pachyderm. No surprise that strategic planning exercises tend to produce a lot of “what to do” options, which they present as a portfolio of strategic opportunities. Defining the opportunity through a thorough understanding what’s going on is hard. And that’s ok.

Strategy 89

Strategy Retail Operating System Programming 89

Adrian Cockcroft

MARCH 17, 2020

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Healthcare 52

Healthcare Government Airlines Systems 52

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 92

Best Practices Tuning Database Testing 92

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 54

Performance Benchmarking Cache Storage 54

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 104

Database Servers Open Source Tuning 104

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 100

Artificial Intelligence Media Google Processing 100

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 78

Database Traffic C++ Servers 78

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

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

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 214

Media Storage Processing Cache 214

Tasktop

FEBRUARY 20, 2020

I Also like to spend a little bit of time stretching and doing light exercises, reading or playing with my daughter before I dive into some work. Now that I have 3 kids, I’ve been limited to the gym but it’s a great way to get exercise and keep my mind sharp. . We have a lot of hills in our area so I can really get a good workout.

Software 52

Software Software Software Engineering Infrastructure 52

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 57

Virtualization Performance C++ Database 57

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 52

Latency Engineering Systems Hardware 52

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

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

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 53

Latency Engineering Systems Hardware 53

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 126

Games Availability Software Software 126

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++ 58

C++ Programming Code Testing 58

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

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

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 Strategy 98