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.

FinTech 40

FinTech Education Testing Website 40

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

The Netflix TechBlog

SEPTEMBER 8, 2020

Functional Testing Functional testing was the most straightforward of them all: a set of tests alongside each path exercised it against the old and new endpoints. Some of this increased latency was mitigated by better observability and more efficient batching of requests.

Latency 233

Latency Cache Java Traffic 233

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 Agile Manager

MAY 31, 2021

A value-generative investment is a roll of the dice that, say, a new market opportunity can be developed or a cost efficiency can be made where none was possible before. A value-generative investment is an exercise in deploying risk capital through IT in the pursuit of extraordinary benefit that yields competitive advantage.

C++ 52

C++ Efficiency Systems Technology 52

Edge Perspectives

NOVEMBER 19, 2019

The unstated assumption behind this discussion is that, if we don’t reduce the workforce as routine tasks get taken over by machines, we need to re-skill them so that they can move into other parts of the institution and perform a different set of tightly specified and highly standardized tasks. We all have muscles as humans.

Programming 47

Programming Scalability Technology Technology 47

SQL Performance

DECEMBER 27, 2019

Of course we can always throw more disk at a table, but I wanted to see if we could scale this more efficiently than the current linear trend. Note that I am not focusing on reporting workload or other read query performance at this time – I merely want to see what impact I can have on storage (and memory) footprint of this data.

Database 70

Database Storage Hardware Efficiency 70

The Agile Manager

JANUARY 31, 2017

The distribution operation was built on efficiencies: fill delivery trucks to a minimum of 80% capacity and deliver products to customers on routes optimized for time and energy consumption. Distribution is about efficiency, because efficiency translates into price.

Retail 45

Retail Energy Logistics Efficiency 45

Sutter's Mill

JANUARY 25, 2021

On a humorous note, O(N) remains O(N) no matter how hard we try to make it efficient: MyAssert( std::is_sorted( std::execution::par, begin(s), end(s) ) ); // still O(N) arbitrarily expensive, but good try! What does the answer to Question 1 imply for assertion checking?

C++ 45

C++ Programming Cache Testing 45

Tasktop

OCTOBER 29, 2020

It’s the gym membership that forces you to exercise. There is just the hard transformation work that needs to be delegated to the product value streams themselves: Start by baselining: VSM tools measure the value streams’ current performance in terms of time-to-market, velocity and efficiency. . Next, examine your bottlenecks.

Storage 52

Storage Speed C++ DevOps 52

Dynatrace

JUNE 1, 2023

Service level objectives (SLOs) provide a powerful framework for measuring and maintaining software performance, reliability, and user satisfaction. SLOs are a valuable tool for organizations to ensure the health and performance of their applications. This SLO enables a smooth and uninterrupted exercise-tracking experience.

Latency 178

Latency Website Traffic Virtualization 178

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

Testsigma

MARCH 6, 2020

Regression tests should be performed just after the sanity testing is complete. Some best practices to follow for efficient regression testing. When is Regression Testing done? Regression checks should start as soon as a new build is released for testing and should be repeated for every new code build.

Best Practices 52

Best Practices Testing Code Testing Tools 52

Dynatrace

JULY 5, 2022

Many companies combine second-generation application performance management (APM) solutions to collect and aggregate data with machine-learning-based AIOps tools that add analysis and execution. These teams need to know how services and software are performing, whether new features or functions are required, and if applications are secure.

Artificial Intelligence 287

Artificial Intelligence Cloud Innovation Strategy 287

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). Can a given type document that moving from an object always changes its state?

C++ 98

C++ Testing Design Strategy 98

The Agile Manager

AUGUST 31, 2020

The exercise of assessing, modeling and dispositioning the landscape does offer valuable new ways of looking at legacy assets. Legacy modernization performed in pursuit of digital modernization - that is, in pursuit of changing the fundamental business model - can be a path to that value.

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? Now this could be a really interesting exercise in patients to hit F5 repeatedly until you get two different values. Figure 5: Plan for Query 5.

C++ 109

C++ Database Servers Code 109

The Agile Manager

NOVEMBER 30, 2014

Sometimes it is divestiture or separation: sprawling firms that serve different buyers or markets don't achieve much in the way of operating efficiency, and a "conglomerate discount" priced into their equity means there is value that can be released by dividing a firm into multiple businesses. IT is at the center of deal synergy.

Airlines 40

Airlines Efficiency Systems Processing 40

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? Now this could be a really interesting exercise in patients to hit F5 repeatedly until you get two different values. Figure 5: Plan for Query 5.

C++ 93

C++ Database Servers Code 93

The Agile Manager

SEPTEMBER 29, 2010

This post presents a few guiding principles to understand before undertaking a restructuring exercise. Tools can make good behaviours more efficient, but tools alone don’t introduce good behaviours in the first place. Culturally, make clear that an outstanding individual performance is a hollow (and dubious) victory in a failed team.

Government 40

Government Efficiency Software Software 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. So many false starts, tedious workflows, and a complete lack of efficiency really made it difficult for me to find momentum. Of course, it’s a little more complex than that, but for this exercise it’s an incredibly reliable proxy.

Speed 292

Speed Ecommerce Metrics Analytics 292

The Netflix TechBlog

DECEMBER 23, 2020

This abstraction allows the compute team to influence the reliability, efficiency, and operability of the fleet via the scheduler. We do this for reliability, scalability, and efficiency reasons. Various pieces of software used elevated capabilities for FUSE, low-level packet monitoring, and performance tracing amongst other use cases.

Media 286

Media Metrics Systems Processing 286

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. Performance Efficiency. Reliability.

Azure 190

Azure Monitoring Virtualization Metrics 190

Dynatrace

MAY 15, 2020

But outdated security practices pose a significant barrier even to the most efficient DevOps initiatives. Dynatrace is the leading Software Intelligence Platform, focused on web-scale cloud monitoring, delivering the richest, most complete data sets in the Application Performance Management market.

Government 227

Government DevOps Infrastructure Network 227

The Agile Manager

APRIL 26, 2010

It's pretty well established that Agile and Lean IT are more operationally efficient than traditional IT. This operational efficiency generally translates into significant bottom line benefits. Capitalizing development of IT assets is an exercise in funding salaries and contractor costs out of CapEx budgets.

Government 49

Government Efficiency C++ Software 49

The Morning Paper

APRIL 16, 2019

Teaching rigorous distributed systems with efficient model checking Michael et al., Enabling students to build running performant versions of all of those systems in the time available is one challenge. Consider the lab exercise to implement Paxos. EuroSys’19. 175 undergraduates a year currently go through this course.

Systems 43

Systems Efficiency Testing Strategy 43

O'Reilly

JUNE 15, 2023

Efficiency, not human flourishing, is maximized. Governance is not a “once and done” exercise. There is no perfectly efficient algorithm that gets everything right. And much as Bostrom feared, we have given them an overriding command: to increase corporate profits and shareholder value. But there’s another factor too.

Government 98

Government Best Practices Energy Efficiency 98

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

The Agile Manager

FEBRUARY 23, 2009

There is functional quality (does the application perform the tasks that it needs to perform?) A unit test exercises a specific piece of code, while integration tests validate round trips to other systems, and functional tests validate complete scenarios. We can perform these tests manually, or, better still, we can code them.

Government 40

Government Metrics Java Code 40

Brendan Gregg

NOVEMBER 13, 2017

He is brilliant at convincing the company to let him do what he wants, even when that ignores market demand or his own past performance. Other staff devise processes to work around Bob, reducing the company's efficiency. He never seriously mentors or trains other staff – he does not see that as useful to his own career. **Bob

Engineering 111

Engineering Energy Technology Technology 111

Percona

AUGUST 8, 2023

Or worse yet, sometimes I get questions about regaining normal operations after a traffic increase caused performance destabilization. Unfortunately, this topic is more of an art than a science, given that there is really no foolproof algorithm or approach that can tell you exactly where you might hit a bottleneck with server performance.

Traffic 87

Traffic Cache Monitoring Database 87

SQL Performance

NOVEMBER 30, 2021

For each database that has pages in the buffer pool, there is a hash list of pages, in page ID order, that’s quickly searchable to determine whether a page is already in memory or whether a physical read has to be performed. Neither index is memory resident: the compiled plan take over 3.5 times longer.

Efficiency 54

Efficiency Servers Database Cache 54

John McCalpin

AUGUST 1, 2018

Bandwidth, performance analysis has two recurring themes: How fast should this code (or “simple” variations on this code) run on this hardware? If I am analyzing (apparent) performance shortfalls, how can I distinguish between cause and effect ? The processor hardware available to support shared-memory transport.

Hardware 40

Hardware Transportation Performance Latency 40

The Netflix TechBlog

FEBRUARY 10, 2021

It can be a nightmare to work efficiently. This greatly reduces the number of bugs and improves the overall health and performance of every application that uses the design system. Hawkins is the namesake that established the basis for a design system used across the Netflix Studio ecosystem. This would allow for an easy migration.

Design 230

Design Systems Engineering Entertainment 230

Dynatrace

JUNE 1, 2021

Application performance monitoring (APM) is the practice of tracking key software application performance metrics using monitoring software and telemetry data. Practitioners use APM to ensure system availability, optimize service performance and response times, and improve user experiences. Application performance management.

Monitoring 148

Monitoring Mobile Social Media Artificial Intelligence 148

SQL Performance

APRIL 14, 2021

I also love his efficient and eloquent writing style. It has excellent performance, and there’s quite a lot that you can learn from it. Evaluating earlier solutions, one of the important factors in getting good performance was the ability to employ batch processing. I love Paul White ’s work. Well, he did , and it’s fascinating!

C++ 112

C++ Servers Testing Code 112

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. The better the performance, the better chance that users stay on a page, read content, make purchases, or just about whatever they need to do. With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise. Lighthouse.

Cache 92

Cache Social Media Media Website 92