The Agile Manager

MARCH 31, 2024

As a learning exercise, it is fantastic. I keep a record of what I do on individual stones, on how I configure machines and the maintenance I perform on them, and for the totality of activities I do in the workshop each day. Those tests have limited information value: they either work or they do not work. Indirect tax?

FinTech 40

FinTech Education Testing Website 40

Rigor

NOVEMBER 22, 2019

Reading time 9 min When it comes to managing web performance, it’s vital to be proactive rather than reactive. To accomplish this goal, an organization needs to build internal processes and procedures that can operationalize a performance-first culture. The first step is to establish and implement web performance budgets.

Performance 45

Performance Metrics Website Speed 45

SQL Performance

JANUARY 12, 2022

This month, I'm going to start exploring the submitted solutions, roughly, going from the worse performing to the best performing ones. Why even bother with the bad performing ones? This article is dedicated to this poor performing approach. Despite the poor performance, working on the solution is an interesting exercise.

Code 116

Code Servers Performance Azure 116

The Netflix TechBlog

MAY 27, 2020

From failure injection testing to regularly exercising our region evacuation abilities, Netflix engineers invest a lot in ensuring the services that comprise Netflix are robust and reliable. CORE is a team consisting of Site Reliability Engineers, Applied Resilience Engineers, and Performance Engineers.

Engineering 104

Engineering Innovation Systems Architecture 104

Testsigma

MARCH 6, 2020

Regression testing comprises re-running the test cases of already stable features and finding out if the new code changes attributed to the new release led to any negative impacts on the existing functionalities. When is Regression Testing done? Read here to know how to implement different types of regression testing.

Best Practices 52

Best Practices Testing Code Testing Tools 52

Sutter's Mill

JANUARY 25, 2021

We want a way to enable checking for some assertions but not others in the same code, because we may not always be able to afford expensive checks. That’s true whether we’re enabling checking at test time (e.g., Some conditions are so expensive that we may never check them without a good reason, even in testing. in production).

C++ 45

C++ Programming Cache Testing 45

Sutter's Mill

JANUARY 11, 2021

Assertions have been a foundational tool for writing understandable computer code since we could write computer code… far older than C’s assert() macro, they go back to at least John von Neumann and Herman Goldstine (1947) and Alan Turing (1949). 1,2] How well do we understand them… exactly? GUIDELINE: Assert liberally. [3]

C++ 58

C++ Programming Code Testing 58

The Agile Manager

AUGUST 31, 2021

Each person is responsible for the outcome because team performance is measured on collective output (specifically, stories in production) as opposed to the sum of individual output (tasks completed by individuals). One person who does a substandard job affects the performance of the entire team.

Metrics 52

Metrics Design Engineering C++ 52

Sutter's Mill

JUNE 3, 2021

Briefly, what is the difference among: (a) undefined behavior Undefined behavior is what happens when your program tries to do something whose meaning is not defined at all in the C++ standard language or library (illegal code and/or data). You’ll get some valid result, but you won’t know what the result is until your code looks at it.

C++ 54

C++ Programming Lambda Code 54

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. This exercises the model’s code and surfaces issues and exceptions, which can be readily examined and resolved in a controlled environment.

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. This exercises the model’s code and surfaces issues and exceptions, which can be readily examined and resolved in a controlled environment.

Cloud 52

Cloud Development Analytics Azure 52

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

MachMetrics

JANUARY 4, 2019

The way a website is constructed can have a major impact on website speed performance, but developers often have a hard time keeping track of factors that cause slow page loads and other speed-related issues. Let’s explore how it works and what it can do to help get your performance up to speed on the backend and frontend.

Speed 60

Speed Website Open Source Google 60

SQL Performance

JANUARY 11, 2021

@name = N'TheThingGuide' , @stmt = N'SELECT * FROM dbo.TheThings WHERE TypeID = @P0' , @type = N'SQL' , @params = N'@P0 varchar(8000)' , @hints = N'OPTION (RECOMPILE)' ; Seems straightforward; testing it is the problem. I've used sp_prepare less in my career than plan guides, and I wouldn't recommend using it for application code. (As

Cache 59

Cache Tuning Database Performance 59

Dynatrace

JUNE 1, 2023

Service level objectives (SLOs) provide a powerful framework for measuring and maintaining software performance, reliability, and user satisfaction. More than half of CIOs confirmed that they often make tradeoffs among code quality, security, and reliability to meet the need for rapid software delivery. or 99.99% of the time.

Latency 173

Latency Website Traffic Virtualization 173

Dynatrace

JUNE 1, 2023

Service level objectives (SLOs) provide a powerful framework for measuring and maintaining software performance, reliability, and user satisfaction. Teams can build on these SLO examples to improve application performance and reliability. This SLO enables a smooth and uninterrupted exercise-tracking experience.

Traffic 173

Traffic Latency Website Virtualization 173

Sutter's Mill

FEBRUARY 17, 2020

Otherwise, you’ll either get the implicitly generated move functions, or else requests to move will automatically just do a copy instead, since copy is always a valid implementation of move (it just doesn’t exercise the non- const option). Yes, in my view it does make it a buggy class that shouldn’t pass code review.

C++ 98

C++ Testing Design Strategy 98

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. What do you see as the biggest challenge for performance and reliability? Dynatrace news.

Strategy 174

Strategy Performance Logistics Monitoring 174

SQL Performance

JUNE 10, 2020

That is, does SQL Server perform a substitution process whereby it converts the original nested code into one query that goes directly against the base tables? The answer is simple, to shorten the code by having the inner query use the infamous SELECT *. That’s safe and will get handled optimally in terms of index matching.

C++ 109

C++ Database Servers Code 109

The Agile Manager

AUGUST 31, 2020

Decades of poor architecture guidelines and lax developer discipline resulted in the commercial-off-the-shelf components of an ERP becoming inseparable from the custom code built around it. The exercise of assessing, modeling and dispositioning the landscape does offer valuable new ways of looking at legacy assets.

Architecture 52

Architecture Code Strategy Programming 52

SQL Performance

JUNE 10, 2020

That is, does SQL Server perform a substitution process whereby it converts the original nested code into one query that goes directly against the base tables? The answer is simple, to shorten the code by having the inner query use the infamous SELECT *. That’s safe and will get handled optimally in terms of index matching.

C++ 93

C++ Database Servers Code 93

The Agile Manager

SEPTEMBER 30, 2012

It's easy to assume that we're hiring competent developers who write high quality code, and most buyers don't know what to look for or how to look for technical quality. We can invest in people to become mobile solution developers who can write client and server code. Stronger hand-offs will slow down coding.

Mobile 49

Mobile Code Java Software 49

Speed Curve

DECEMBER 10, 2017

A brief history of performance metrics. In the case of performance metrics, we're trying to capture the behavior of a website in terms of speed and construction. While construction metrics are fairly well established, time-based performance metrics are newer and still evolving. Gaps in today's performance metrics.

Metrics 68

Metrics Website Speed Monitoring 68

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 26

Systems Traffic DevOps Database 26

The Agile Manager

DECEMBER 17, 2008

Traditional IT projects are mass economy-of-scale exercises: once development begins, armies of developers are unleashed. Traditionally in IT, our gatekeepers are typically several different waves of requirements and specification documents, then software, then test results, then a production event.

Latency 40

Latency Code Metrics Testing 40

The Agile Manager

FEBRUARY 28, 2017

Management textbooks dating at least as far back as the 1980s included stories of employees performing tasks the reasons for which they didn't really understand. Tool 1: Dolly the Sheep Companies that are heavily rule-based - think insurance - eagerly moved their business rules into code.

Strategy 40

Strategy Java Code Systems 40

CSS Wizardry

NOVEMBER 3, 2020

A couple of years ago, my first few days on a new web performance project were always slow going. Unless a client hires you to specifically improve the performance of one page, you’ll need a broad view of the whole site or application. Any time you run a test with WebPageTest, you’ll get this table of different milestones and metrics.

Speed 292

Speed Ecommerce Metrics Analytics 292

The Agile Manager

FEBRUARY 23, 2009

For example, in the Java world we can measure all kinds of attributes of code: overcomplicated expressions, wasteful use of resources, ghost code, duplicate code, complexity, and so forth. Good in the sense that code quality doesn’t need to be taken for granted, because we can measure attributes of the asset we’re creating.

Government 40

Government Metrics Java Code 40

The Netflix TechBlog

DECEMBER 3, 2019

A key observation was that most of our data scientists had nothing against writing Python code. Data scientists want to retain their freedom to use arbitrary, idiomatic Python code to express their business logic?—?like The steps can be arbitrary Python code. like they would do in a Jupyter notebook.

Open Source 232

Open Source AWS Infrastructure Energy 232

Brendan Gregg

NOVEMBER 13, 2017

There's also the "[No A **e Rule]", popularized by a bestselling book of this title, which provides the following [test]: 1. Here's a test for you or your company: Would you tolerate a brilliant engineer who is also an a **e? Alice is great at fixing hard bugs, writing test suites, doing code merges, and other unglamorous work.

Engineering 111

Engineering Energy Technology Technology 111

SQL Server According to Bob

JANUARY 26, 2017

My goal is to resolve mysteries about SQL Server I encounter but do this without going straight the source code first. Quick question about a behavior we’re seeing at a customer and in testing. This might have a performance effect for unencrypted databases on the same instance of SQL Server. Notice what is below it.

Servers 40

Servers Database Azure Cache 40

O'Reilly

JANUARY 17, 2023

Figuring out what kinds of problems are amenable to automation through code. So it behooves a software developer to spot what portions of human activity can be properly automated away through code, and then build that. Because if companies use code to automate business rules, they use ML/AI to automate decisions.

Tuning 130

Tuning Open Source AWS Software 130

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

Smashing Magazine

AUGUST 19, 2021

It all starts with a Code of Ethics. “I Outcomes of a code of ethics affect almost every aspect of your user research practice, from processes to templates and team environment. Outcomes of a code of ethics affect almost every aspect of your user research practice, from processes to templates and team environment.

Code 137

Code Design Education Government 137

Dynatrace

APRIL 21, 2022

Analyzing user experience to ensure uniform performance after migration. Performance efficiency. Some principles Microsoft provides across this area include: Choosing the right resources aligned with business goals that can handle the workload’s performance. Understanding resource utilization for cost management.

Azure 184

Azure Monitoring Virtualization Metrics 184

The Netflix TechBlog

DECEMBER 3, 2019

A key observation was that most of our data scientists had nothing against writing Python code. Data scientists want to retain their freedom to use arbitrary, idiomatic Python code to express their business logic?—?like The steps can be arbitrary Python code. like they would do in a Jupyter notebook.

Open Source 134

Open Source AWS Infrastructure Energy 134

The Agile Manager

APRIL 14, 2009

In the prior installments of this series, we presented a pattern for how PMOs can better bridge the gap between executive and executor: First, we discussed the need to define progress in terms of business needs met and not technical tasks performed, so that we measure in terms of results, not effort.

Games 40

Games Government Metrics Testing 40