Dynatrace

APRIL 10, 2023

Managing cloud performance is increasingly challenging for organizations that spread workloads across a greater variety of platforms. Moreover, organizations have to balance maintaining security, retaining cloud management expertise, and managing infrastructure performance. Rural lifestyle retail giant Tractor Supply Co.

Cloud 173

Cloud Ecommerce Performance Retail 173

DZone

MARCH 24, 2021

We typically understand software testing by the everyday definition of the word: making sure a piece of software performs the way it is supposed to in a production-like environment. For a complex distributed application with several external dependencies there is nothing that can beat a full end-to-end test. Or is there?

Design 193

Design Testing Software Performance Database 193

Alex Podelko

JUNE 12, 2019

My post Good Times for Load Testing was published in 2014. It is difficult to believe that 5 years passed… Are times still good for load testing? If we speak about commercial load testing tools, we see rather a shrinking market and not too much innovation recently. Well, yes and no. I am not so upbeat as I was in 2014.

Testing 243

Testing Open Source Testing Tools Performance Testing 243

DZone

JULY 5, 2019

Regression Testing, by its definition, is a type of software testing to confirm that a recent program or code change has not adversely affected existing features. In order to achieve that, the existing test cases are executed selectively or sometimes completely.

Testing Tools 248

Testing Tools Testing Programming Code 248

Dynatrace

MARCH 3, 2020

For software engineering teams, this demand means not only delivering new features faster but ensuring quality, performance, and scalability too. One way to apply improvements is transforming the way application performance engineering and testing is done. Performance-as-a-self-service . Try it today using Keptn .

Performance 243

Performance Education Innovation Software Architecture 243

DZone

JULY 20, 2020

Taking part in testing more than 50 projects we saw how tests can give confidence in the code base, begin to save time for the entire development team and help to comply with business requirements. For those who come from other ecosystems, let us first explain what the term “functional tests” means in Symfony.

Testing 178

Testing Code Development Performance Testing 178

CSS Wizardry

NOVEMBER 9, 2018

Let me address that by combining my two favourite topics: CSS and performance. It’s really, really bad for Start Render performance. The introduction of the Preload Scanner improved web page performance by around 19%, all without developers having to lift a finger. What’s the Big Problem? Avoid using @import in your CSS files.

Network 278

Network Performance Media Cache 278

Dynatrace

APRIL 10, 2020

In the rest of the blog I walk you through the steps that allows our teams to identify a “memory hungry” Jenkins plugin and how the removal of this no longer needed plugin resulted in an overall 3x improvement of Jenkins performance. As a negative side effect, the team ran into a JVM bug which they could workaround though.

Java 255

Java Performance DevOps Engineering 255

Alex Podelko

OCTOBER 18, 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. While agile development / DevOps become mainstream nowadays, their integration with performance testing is just making first steps.

Performance Testing 100

Performance Testing Testing Performance DevOps 100

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

Alex Podelko

OCTOBER 20, 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. Cloud seriously impacts system architectures that has a lot of performance-related consequences. – Cloud. – Agile.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

Dynatrace

MAY 28, 2020

In this blog, I will be going through a step-by-step guide on how to automate SRE-driven performance engineering. Keptn uses SLO definitions to automatically configure Dynatrace or Prometheus alerting rules. Step-by-step guide: SRE-driven performance analysis with Dynatrace. This is what this blog is all about.

Engineering 193

Engineering Performance Metrics Best Practices 193

Alex Podelko

OCTOBER 13, 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. While it was always recommended to start performance testing earlier, it was usually rather few activities you can do before the system is ready.

Performance Testing 100

Performance Testing Testing Performance Engineering 100

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.”. Production-Ready Microservices — Learn how to design microservices that are stable, reliable, scalable, fault tolerant, performant, monitored, documented, and prepared for any catastrophe.

Architecture 80

Architecture Scalability Systems Code 80

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.

Testing 147

Testing Database Code Development 147

Alex Russell

JANUARY 30, 2024

The usual caveats also apply: Performance is a deep and nuanced domain, and much can go wrong beyond content size and composition. How sites manage resources after-load can have a big impact on perceived performance. Until and unless teams have better data about their performance, the global baseline budget should be enforced.

Performance 90

Performance Network Mobile Speed 90

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

JULY 22, 2022

Given this capability, you can now define user groups such as: Developer : Permission to deploy or test a service in a particular project that’s in development. Product Engineer or Release Manager: Permission to approve the release of applications into the hardening stage for load testing, or into production for end-user usage.

Cloud 233

Cloud DevOps Best Practices Engineering 233

DZone

OCTOBER 28, 2019

Learn how to design your tests. In this blog, we overview what is and how to perform test design (and, which is at least as important, how not to perform it). Going forward, a test basis is ‘the body of knowledge used as the basis for test analysis and design’.

Design 100

Design Testing Performance Testing Performance 100

DZone

JULY 19, 2021

The quality can be subjective, so different teams may use different definitions based on the context. Code can be considered good quality if it is clear, simple, well tested, bug-free, refactored, documented, and performant. Keeping good code quality is also crucial for developing safety-critical systems.

Code 269

Code Metrics Testing Systems 269

Brendan Gregg

APRIL 8, 2022

A while ago I helped a colleague, Vadim, debug a performance issue with TensorFlow in an unexpected location. of CPU, so it definitely was, and madvise() was calling zap_page_range() that was calling the faults. Here's the fixed flame graph: Initial testing showed only a 3% win (can be verified by the flame graphs).

Performance 100

Performance Virtualization Code Servers 100

Dynatrace

MARCH 27, 2024

Notebooks are a perfect tool to understand and perform an in-depth analysis of AWS AppFabric logs, thanks to the powerful Dynatrace query language, DQL. However, with Dynatrace Query Language (DQL) we can perform much more complex queries on our OCSF logs. This section shows how to analyze AWS AppFabric logs with Notebooks and DQL.

AWS 247

AWS Analytics Government Monitoring 247

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. The word “automation” seems to be a culprit in this case.

Artificial Intelligence 97

Artificial Intelligence Testing Energy Analytics 97

Speed Curve

MAY 1, 2023

If you've invested countless hours in speeding up your pages, but you're not using performance budgets to prevent regressions, you could be at risk of wasting all your efforts. Background: How performance budgets work 1. What is a performance budget? What should a performance budget look like? Let's get started!

Performance 98

Performance Metrics Media Google 98

DZone

AUGUST 23, 2019

When we talk about quality we may think of a fine piece of furniture or the quality service we receive at a fancy restaurant but what does quality mean in the context of software?

Software 100

Software Software Testing Performance 100

Percona

APRIL 10, 2023

Then, each key-value entry will keep in the key the column name surrounded by backticks, and the value will be the masking function definition. mydumper -o data -B test --defaults-file=mydumper.cnf -r 100000 -c real 0m19.964s user 0m48.396s sys 0m7.885s It took near 19.9 sbtest1`] `k`=random_int The backup took 20.7

Testing 107

Testing C++ Open Source Database 107

Smashing Magazine

AUGUST 10, 2023

Running A Page Speed Test: Monitoring vs. Measuring Running A Page Speed Test: Monitoring vs. Measuring Geoff Graham 2023-08-10T08:00:00+00:00 2023-08-10T12:35:05+00:00 This article is sponsored by DebugBear There is no shortage of ways to measure the speed of a webpage. Not the best way to get a high-level view of performance.

Speed 81

Speed Monitoring Testing Network 81

Testlodge

MARCH 21, 2023

What’s the difference between Black Box and White Box Testing? When looking at black box vs white box testing, the main difference between them is the type of product information the tester will access. Black box testing focuses on the requirements to ensure the system responds as expected, according to the documentation.

Testing 67

Testing Architecture Hardware Code 67

Speed Curve

FEBRUARY 15, 2021

Performance budgets are one of those ideas that everyone gets behind conceptually, but then are challenged to put into practice – and for very good reason. If you're just getting started with performance budgets – or if you've been using them for a while and want to validate your work – this post is for you.

Performance 135

Performance Metrics Benchmarking Google 135

Speed Curve

JULY 10, 2023

Demonstrating the impact of performance on your users – and on your business – is one of the best ways to get your company to care about the speed of your site. In 2010, the Performance and Reliability team I was fortunate enough to lead at Walmartlabs shared our findings around the impact of front-end times on conversion rates.

Performance 52

Performance Metrics Traffic Speed 52

DZone

AUGUST 20, 2019

Continuous Testing. Recently someone pointed me to a Twitter thread that contained a link to an article about “Continuous Testing”.

Testing 113

Testing Software Software Processing 113

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. You run load tests monitored with Dynatrace and you want to automatically validate to eliminate the manual analysis effort.

DevOps 245

DevOps Open Source Cloud Azure 245

Dynatrace

MAY 19, 2022

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. Feature flag solutions currently use proprietary SDKs with frameworks, definitions, and data/event types that are unique to their platforms.

Java 259

Java Cloud Code Technology 259

Alex Podelko

DECEMBER 19, 2019

So you need to understand what is going on there – and Debbie is definitely an authority in that area. ITIL Version 4 Capacity and Performance Management in an Agile Container World by Chris Molloy, IBM. – System performance management is an important topic – and James is going to share a practical method for it. .

Efficiency 100

Efficiency Artificial Intelligence Scalability Performance 100

Percona

OCTOBER 13, 2023

In the case of InnoDB tablespaces, this information is incorporated into the tablespace itself, creating a fusion of metadata and data primarily to enhance performance. This helps improve the performance of metadata retrieval and management for InnoDB tables. Let’s test it with InnoDB using the ibd2sdi tool. In MySQL 8.0,

Storage 95

Storage Database Engineering Open Source 95

Percona

APRIL 11, 2023

Indexes are crucial for optimizing query execution times in databases, but having an excessive number of indexes, or redundant ones, can negatively impact performance. In this blog post, we’ll put ourselves to the test and see if we can identify duplicate and redundant indexes in MySQL.

Database 92

Database Open Source Testing Design 92