Alex Podelko

SEPTEMBER 8, 2020

Some time ago Federico Toledo published Performance Testing with Open Source Tools- Busting The Myths. While Federico definitely has good points there, there is some truth in these myths too. I remember really liking the technical side of these tests. What load testing tools did you use? What is your business model?

Open Source 223

Open Source Performance Testing Testing Performance 223

Dynatrace

JANUARY 13, 2021

Dynatrace’s OneAgent automatically captures PurePaths and analyzes transactions end-to-end across every tier of your application technology stack with no code changes, from the browser all the way down to the code and database level. Monitoring-as-code requirements at Dynatrace. Referencing other configurations by name.

Open Source 142

Open Source Code Monitoring Azure 142

DZone

JUNE 18, 2020

To facilitate the development of robust, error-free code, Apex supports the creation and execution of unit tests. Unit tests are class methods that verify whether a particular piece of code is working properly. Unit test methods take no arguments, commit no data to the database, and send no emails. For example:

Testing 147

Testing Database Code Development 147

The Netflix TechBlog

FEBRUARY 9, 2022

any business logic code in a raw (e.g. Or what if Alice wanted to add new backup functionality and she accidentally broke existing code while updating it? The important thing is that this business logic can be built in a separate repository and maintained independently from the workflow definition. SQL) or compiled (e.g.

Storage 213

Storage Data Engineering Testing Code 213

The Netflix TechBlog

JULY 22, 2024

By Jun He , Natallia Dzenisenka , Praneeth Yenugutala , Yingyi Zhang , and Anjali Norwood TL;DR We are thrilled to announce that the Maestro source code is now open to the public! It supports a wide range of workflow use cases, including ETL pipelines, ML workflows, AB test pipelines, pipelines to move data between different storages, etc.

Strategy 260

Strategy Scalability Code Engineering 260

Dynatrace

MAY 19, 2022

They enable product delivery and SRE teams to turn functionality on and off at runtime without deploying new code. This helps SRE teams quickly mitigate issues by turning off poorly-performing features, enabling features for specific subsets of end-users, or performing side-by-side A/B feature testing.

Java 269

Java Cloud Code Technology 269

Dynatrace

MARCH 3, 2020

One way to apply improvements is transforming the way application performance engineering and testing is done. This involves new software delivery models, adapting to complex software architectures, and embracing automation for analysis and testing. Here is the definition of this model: ?. Performance-as-a-self-service .

Performance 253

Performance Education Innovation Software Architecture 253

DZone

NOVEMBER 9, 2021

It sits at the very beginning of the process before the code is written and can save an immense amount of time down the road (of somebody spending tons of time just to get to a dead-end). I really like what one of the smartest people with whom I worked said: “A good design is a design where you can see the code”. Important note.

Software 245

Software Software Code Design 245

The Netflix TechBlog

JUNE 13, 2023

Migrating Critical Traffic At Scale with No Downtime — Part 2 Shyam Gala , Javier Fernandez-Ivern , Anup Rokkam Pratap , Devang Shah Picture yourself enthralled by the latest episode of your beloved Netflix series, delighting in an uninterrupted, high-definition streaming experience. This is where large-scale system migrations come into play.

Traffic 287

Traffic Metrics Systems Strategy 287

Dynatrace

AUGUST 27, 2024

To help determine how customers can comply with DORA requirements, DORA’s articles can be classified in the following three categories: Definition : Describes terms and the scope of the act. Leveraging code-level insights and transaction analysis, teams can detect and thwart malicious activity.

Best Practices 276

Best Practices Government DevOps Analytics 276

Jos

APRIL 6, 2018

We are explicit about our dependencies, so we know what code we need to run to run a specific component. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. Componentizing generally makes testing and maintenance easier.

Code 147

Code Performance Media Google 147

The Netflix TechBlog

FEBRUARY 3, 2021

There are two different approaches to GraphQL development; schema-first and code-first development. The code in your service only implements this schema. With code-first development , you don’t have a schema file. Instead, the schema gets generated at runtime based on definitions in code.

Open Source 246

Open Source Java Architecture Metrics 246

Dynatrace

FEBRUARY 18, 2021

To improve the naming of our navigation menu entries, we will soon conduct A/B testing for one of the main entry points to the Dynatrace navigation menu. Definitely not. Our CPU profiling is on 24/7, covers method hotspots, thread and memory allocation information, and allows users to analyze end-to-end traces down to the code level.

Testing 246

Testing Java Tuning DevOps 246

Dynatrace

JULY 16, 2021

Many of our users are performance engineers using Cloud Automation Quality Gates to automate the analysis of their performance and load tests – saving hours of analysis time for each test they run. Whether it’s used to automate your test analysis or fully integrated into your delivery pipeline, this blog will guide you through it!

DevOps 246

DevOps Open Source Cloud Azure 246

O'Reilly Software

MARCH 1, 2018

Sam Newman provides a succinct definition of microservices in Building Microservices : “Microservices are small, autonomous services that work together.”. Codebases grow as we write code to add new features. Code related to similar functions starts to become spread all over, making fixing bugs or implementations more difficult.

Architecture 80

Architecture Scalability Systems Code 80

DZone

FEBRUARY 27, 2021

But these are definitely ruled out for enterprise applications due to the complexity in development, maintainability, need for object orientation, and interoperability. Though I have spent the last ~17 years (In 2021) of my life coding and perfecting my Java and J2EE skill — I suddenly feel. Ahem, Slow! You have one gold coin.

Java 214

Java C++ Benchmarking Programming 214

Jos

APRIL 5, 2018

We are explicit about our dependencies, so we know what code we need to run to run a specific component. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. Componentizing generally makes testing and maintenance easier.

Code 130

Code Performance Google Media 130

The Netflix TechBlog

FEBRUARY 16, 2021

Operational Efficiency: The majority of the changes require metadata configuration files and library code changes, usually taking days of testing and service release to adopt the updates. Besides, the mixed-use of the metadata files and business logic code adds another layer of maintenance complexity.

Mobile 220

Mobile Engineering Infrastructure Scalability 220

The Netflix TechBlog

AUGUST 22, 2019

Artisan Crafted Images In the Netflix full cycle DevOps culture the team responsible for building a service is also responsible for deploying, testing, infrastructure, and operation of that service. The configuration file, referenced scripts, and artifact dependency definitions all live in an internal git repository.

DevOps 211

DevOps AWS Tuning Infrastructure 211

Dynatrace

JULY 30, 2021

With all the technology changes through the past three years, with the world moving to K8s, the rise of GitOps, everything as code, event-driven automation, and many new open standards in the cloud-native space, it was time to update our workshop. This is where the dashboard-based quality gate definition comes in.

Cloud 214

Cloud DevOps Azure Virtualization 214

Dynatrace

DECEMBER 13, 2024

Managing Auto-Instrumentation in Pods The Operator automatically injects and configures auto-instrumentation for your applications, which enables you to collect telemetry data without modifying your source code. The core distribution is a bare-bones distribution of the Collector for OpenTelemetry developers to develop and test.

Java 183

Java Servers Code Metrics 183

Dynatrace

SEPTEMBER 28, 2021

While DevOps is often referred to as “agile operations,” the widely quoted definition from Jez Humble, co-author of The DevOps Handbook, calls it “a cross-disciplinary community of practice dedicated to the study of building, evolving, and operating rapidly-changing resilient systems at scale.” Deployment frequency.

DevOps 213

DevOps Metrics Traffic Efficiency 213

Dynatrace

MARCH 8, 2021

With the monitoring flexibility that comes with Dynatrace, it’s impossible to test and describe all technologies, use cases, and possible scenarios. Based on the number of product ideas already submitted in the forums, we know that the above quote is definitely true! Ranks is definitely the most awaited form of gamification.

Innovation 231

Innovation Testing Monitoring Technology 231

Alex Podelko

AUGUST 24, 2017

There was a rather heated discussion around A Context-Driven Approach to Automation in Testing by James Bach and Michael Bolton (referred below as the article and the authors – other references would be explicit). and Open letter to “CDT Test Automation” reviewers as well as in many other different places.

Testing 140

Testing Performance Performance Testing Testing Tools 140

Testsigma

OCTOBER 30, 2020

If you are working in an agile environment, you may have come across the term ‘code review’. It is a strategic operation where you break the source code into snippets in order to audit the code before it is moved to the testing phase. What Is Code Review? The Need For Code Review.

Code 81

Code Software Software Testing 81

CSS Wizardry

DECEMBER 9, 2023

All code examples are complete and correct. Connection overhead isn’t huge , but too many preconnect s that either a) aren’t critical, or b) don’t get used at all, is definitely wasteful. ichef.bbci.co.uk : Not on the critical path, but does host the homepage’s LCP element. When to Use crossorigin Okay.

Speed 280

Speed Network Analytics Availability 280

Testsigma

APRIL 4, 2022

A common theme among most software testing organizations is their escalating interest in Test Automation. While test automation has grown in popularity, there are still many myths and biases surrounding it. Such myths can unknowingly create a self-limiting boundary and negatively impact the possibilities of test automation.

Testing 95

Testing Open Source IoT Programming 95

Testsigma

MARCH 12, 2021

Robotic Process Automation and Test Automation are two confusing terms in testing processes. Similar to TDD and BDD processes, RPA and test automation seem like a single branch of the test segment which is common to be exchanged in communication during planning. What is Test Automation? Source: [link].

Artificial Intelligence 97

Artificial Intelligence Testing Energy Analytics 97

Dynatrace

OCTOBER 4, 2021

An application programming interface (API) is a set of definitions and protocols for building and integrating application software that enables your product to communicate with other products and services. API testing complements monitoring. This is done through testing. So what is API monitoring?

Monitoring 190

Monitoring Latency Metrics Availability 190

CSS Wizardry

NOVEMBER 9, 2018

This is definitely a bug in WebKit/Blink—missing quotes shouldn’t hide the @import ed stylesheet from the Preload Scanner. In fact, Google Analytics even tell us what to do, and they’re right: Copy and paste this code as the first item into the of every webpage you want to track. Test, test, test. Test and measure.

Network 279

Network Performance Media Cache 279

Dynatrace

MARCH 27, 2024

Dynatrace integration with AWS AppFabric for security The AWS AppFabric for security feature fully manages the integrations with over 25 applications so customers can get started tracking application security in just a few clicks—no coding required. You will see the ip, cidr and is_company_ip attributes added to the log entry.

AWS 255

AWS Analytics Monitoring Government 255

Scalegrid

JANUARY 20, 2020

This extra cluster, known as a follower cluster, can be leveraged for multiple use cases, including for analyzing, optimizing and testing your application performance for MongoDB , MySQL and PostgreSQL. The ‘follower’ system is writable, so you can use it as a staging environment to test your application changes. Data Analytics.

Analytics 185

Analytics Database Storage Systems 185

Dynatrace

AUGUST 17, 2023

Either way, the Dynatrace Micrometer Registry adds proper topology without modifying your code. The Slack message provides links to these unified analytics views and gather associated trace IDs to look at transactions and code-level insights. Definitions of the Slack workflow are also in the Git repository.

Metrics 211

Metrics Analytics Speed Java 211

Dynatrace

JUNE 11, 2019

Ideally, QA teams use production data for better test definitions (based on real use cases) and better workload modeling for load testing (based on real-world load behavior). Organizations that don’t look at production data may test the wrong things and simulate the wrong performance tests. This is good news.

Innovation 201

Innovation Monitoring Metrics Strategy 201

Dynatrace

JUNE 15, 2021

Those tests get executed from two locations (Paris and London) hosted by different cloud vendors (Azure & AWS). As a general best practice, Synthetic Tests are great to validate your core use cases are always working as expected. Fact #3: Minimum impact detected through synthetics.

AWS 202

AWS Traffic Architecture Azure 202

Alex Podelko

OCTOBER 28, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. Quite often the whole area of load testing is reduced to pre-production testing using protocol-level recording/playback. – Cloud.

Performance Testing 100

Performance Testing Technology Technology Testing 100

Dynatrace

DECEMBER 6, 2022

But, manual steps — such as reviewing test results and addressing production issues resulting from performance, resiliency, security, or functional issues — often hinder these efforts. As two examples, Roman Ferstl of Triscon noted that observability-driven DevOps has helped clients achieve 15x more tests with 10x more apps tested.

DevOps 230

DevOps Metrics Engineering Speed 230