Speed Curve

MARCH 3, 2024

We need guardrails to help protect us from shipping code that will result in unexpected regressions. We need breadcrumbs that we can follow back to the source to help us identify why a metric may have changed. Automated testing of code changes Another important guardrail is to have automated performance testing when code changes occur.

Performance 67

Performance Metrics Code Testing 67

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 244

DevOps Open Source Cloud Azure 244

Dynatrace

MARCH 9, 2022

This first step clearly shows that the code that powers getFamilyCondition is using a lot of CPU – much more than any other of the top services combined! It can be your own code, 3 rd party code or your runtime that executes for certain tasks such as Garbage Collection. So – we found the culprit!

Java 222

Java Traffic Government Code 222

Speed Curve

SEPTEMBER 25, 2018

This gives us a relatively unique opportunity to analyse and aggregate performance metrics to gain some interesting insights. In this post, I'm going to analyse some browser-based paint timing metrics: First Paint & First Contentful Paint (defined in the Paint Timing spec and implemented in Chromium). Doing the analysis.

Metrics 49

Metrics Performance Testing Testing Internet 49

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 192

Innovation Monitoring Metrics Strategy 192

Alex Podelko

SEPTEMBER 8, 2020

Some time ago Federico Toledo published Performance Testing with Open Source Tools- Busting The Myths. How did you get into performance engineering? I remember really liking the technical side of these tests. What load testing tools did you use? As most things in life, by chance. What is your business model?

Open Source 223

Open Source Performance Testing Testing Performance 223

Testsigma

OCTOBER 6, 2020

Test case management tools. A tester’s life moves around test cases and bugs. For management of test cases of different features the test case management tools are used. Some examples of test case management tools are: TestRail, Practitest, TestCollab. Test case generation tools. Test execution tools.

Java 65

Java Testing Tools Performance Testing Testing 65

SQL Performance

APRIL 13, 2020

Step 6: Testing. At its simplest, testing an index means taking the problematic query and capturing the plan and performance data (duration, IO, CPU, etc.), To begin with, I often have at least two variations of an index that I want to test, sometimes more. Finally, I compare the numbers. Step 7: Implementation.

Tuning 137

Tuning Cache Metrics Testing 137

Testsigma

APRIL 17, 2020

The testers in a software development team will be understood better if they are able to convey the software testing information and insights properly. Below are 5 ways that testers can communicate software testing insights better: 1. Test execution reports for example.

Software 55

Software Software Testing DevOps 55

MachMetrics

MAY 31, 2019

These days everyone knows the importance of front-end site testing and has some basic tools in place to help them – but how do you know if your testing efforts are ideal? From speed testing to usability testing, use these ten strategies to ensure your website is always running on all cylinders. Test Early and Often.

Website 49

Website Testing Speed Website Performance 49

CSS - Tricks

JULY 25, 2019

Lighthouse records metrics from the browser, applies a scoring model to them, and presents an overall performance score. Guidelines for improvement are suggested based on how specific metrics score. Like PageSpeed, Lighthouse also has a performance score. the performance score is taken from Lighthouse directly.

Google 71

Google Engineering Speed Mobile 71

Speed Curve

JUNE 24, 2019

That's why it's a good idea to not just focus on metrics like Start Render – you should also investigate Hero Rendering metrics , which track when the most meaningful content on your pages (e.g., At SpeedCurve we call these metrics "IX Time" and they're available on your LUX Performance dashboard.)

Performance 78

Performance Best Practices Metrics Mobile 78

Dynatrace

SEPTEMBER 17, 2019

End-to-end code-level tracing. Dynatrace’s PurePath technology brings us automatic end-to-end code level tracing without having to modify any code or configuration. Having Dynatrace also looking at key EFS metrics gives them additional root cause information in case something goes wrong. Full-stack observability.

AWS 127

AWS Monitoring Ecommerce Lambda 127

Tasktop

OCTOBER 22, 2020

With the right set of business-centric metrics that focus on the flow of work across the product value stream, IT and business leaders can leverage objective real-time data to identify the bottlenecks slowing them down, inform investment strategy, and measure the impact of changes to steer them in the right direction. To paraphrase W.

Energy 52

Energy Metrics Government Software 52

Smashing Magazine

MAY 9, 2022

WebPageTest is one of the few web performance testing tools that actually tests a reload of the page using a primed HTTP Cache — most of the other tools just flag if your HTTP resources are not explicitly set to be cached. Back/Forward Cache Testing Tool. Large preview ). Large preview ).

Cache 91

Cache Games Performance Website 91

The Netflix TechBlog

JANUARY 24, 2022

This post describes how the Netflix TVUI team implemented a robust strategy to quickly and easily detect performance anomalies before they are released?—?and What do we mean by Performance? Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time.

Performance 199

Performance Metrics Performance Testing Testing 199

Smashing Magazine

APRIL 11, 2022

Loading experience is crucial to the user’s first impression and overall usability, so Google defined Largest Contentful Paint (LCP) metric to measure how quickly the main content loads and is displayed to the user. Of all those options, it’s safe to assume that text is the best choice for LCP performance because it loads and renders fast.

Media 69

Media Tuning Metrics Google 69

CSS - Tricks

JUNE 1, 2021

Testing is one of those things that you either get super excited about or kinda close your eyes and walk away. Whichever camp you fall into, I’m here to tell you that front-end testing is for everyone. In fact, there are many types of tests and perhaps that is where some of the initial fear or confusion comes from. Integration.

Testing 95

Testing Performance Testing Website Code 95

Rigor

FEBRUARY 15, 2018

I don’t have time or budget to dedicate to performance”. You don’t have the time to monitor something that affects your company’s revenue and almost every online metric your business cares about ? Most people assume gaining insight into their site’s performance is a huge time commitment. So you don’t know how to code?

Ecommerce 40

Ecommerce Retail Performance Benchmarking 40

Dynatrace

JANUARY 5, 2022

Credits on content go to him and the work he has been doing around performance & resiliency testing automation. Our Application Performance Management (APM) and load test team at T-Systems MMS helps our customers reduce the risk of failed releases. Automation : Single load test executions can be repeated and tracked.

Testing 217

Testing Open Source Metrics Infrastructure 217

Dynatrace

MAY 27, 2021

Adopting CD practices can help make the release process go more smoothly and remove the guesswork involved in deploying new code, and most importantly, help you automate the software delivery process to be more predictable and efficient. Without CD, pushing code to a target environment requires manual processes.

Best Practices 130

Best Practices DevOps Open Source Cloud 130

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. Observability is the ability to measure a system’s current state based on the data it generates, such as logs, metrics, and traces.

DevOps 218

DevOps Metrics Engineering Speed 218

Dynatrace

NOVEMBER 19, 2020

Keptn is an event-based platform for continuous delivery and automated operations to help developers focus on code instead of witting tons of configuration and pipeline files. But first, let me explain a little about Jenkins code libraries and the Dynatrace API. Jenkins code libraries. Performance test is run.

Software 143

Software Software DevOps Open Source 143

Rigor

SEPTEMBER 11, 2019

He has also hosted the NY Web Performance Meetup, which boasts over 5,000 members, since 2009. Developers representing hundreds of companies work together at these meetups to become masters in performance metrics and the latest trends in measuring site speed.) He also co-authored High Performance Images. Jason Grigsby.

Performance 89

Performance Education Google Website 89

Smashing Magazine

FEBRUARY 2, 2022

Improving JavaScript Bundle Performance With Code-Splitting. Improving JavaScript Bundle Performance With Code-Splitting. It’s a common misconception that the code which is produced by the framework build tools (Webpack, for example) is fully optimized and cannot be improved upon any further. Adrian Bece.

Code 89

Code Performance Network Website 89

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 178

Strategy Performance Logistics Monitoring 178

Testsigma

SEPTEMBER 4, 2021

From game development to machine learning projects to neural networks to automation testing- everything is on the cloud. If there are people who can lend you extraordinary infrastructures, tools, and high-performance servers, you should take advantage of them for the project. Geo-location testing – A huge plus point.

Cloud 52

Cloud Testing Infrastructure Testing Tools 52

Dynatrace

OCTOBER 5, 2020

The challenge with ASP.NET Web Service Observability, Diagnostics and Performance Optimization is that most monitoring & diagnostic tools only provide global Service Level Indicators metrics (SLIs) such as response time, failure rate, and throughput, but not metrics for each individual service endpoint.

Performance 152

Performance Best Practices Architecture Monitoring 152

Dynatrace

JULY 9, 2020

Gone are the days for Christian manually looking at dashboards and metrics after a new build got deployed into a testing or acceptance environment: Integrating Keptn into your existing DevOps tools such as GitLab is just a matter of an API call. Monitoring Configuration as Code. Incident Notification and Auto-Remediation.

Cloud 187

Cloud DevOps Azure Architecture 187

Apica

AUGUST 12, 2020

One of the best conversations from the event was a discussion on the five challenges enterprises need to know about testing and monitoring. Below are the five challenges we discussed regarding testing and monitoring. Finally, scalability regarding effectively consuming results from testing. Scalability.

Monitoring 52

Monitoring Testing Scalability Hardware 52

Speed Curve

DECEMBER 6, 2023

At a glance you can see: The status of the deploy The status of your performance budgets (if you have created budgets) An aggregate metric for all of the URLs tested in the deploy (set to Largest Contentful Paint by default) Clicking on any deployment in the list brings up your Deployment Details dashboard.

Cache 57

Cache Retail Testing Code 57

Dynatrace

DECEMBER 23, 2020

Metrics: Numeric representation of data measured over a set period. Analyze how end-users experience the system in terms of average response times, error rates, and other digital experience metrics. Monitor key performance metrics that can be with interactive visual dashboards.

Infrastructure 205

Infrastructure Cloud Monitoring Metrics 205

MachMetrics

JUNE 30, 2021

Many people often confuse site speed with page speed grades of performance testing tools, which are actually calculated based on multiple factors of a page including its loading speed. The screenshot below explains that page load time and lighthouse performance scores are not the same, yet they are really close to each other.

Cache 78

Cache Speed Google Website 78

Dynatrace

DECEMBER 23, 2020

Metrics: Numeric representation of data measured over a set period. Analyze how end-users experience the system in terms of average response times, error rates, and other digital experience metrics. Monitor key performance metrics that can be with interactive visual dashboards.

Infrastructure 146

Infrastructure Cloud Monitoring Metrics 146

Brendan Gregg

FEBRUARY 9, 2018

Much of my testing was on Linux 4.14.11 Some older kernels have the KAISER patches for Meltdown, and so far the performance overheads look similar. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. I've since tested the 4.4.115 kernel and confirmed that pcid is used there.

Performance 75

Performance Benchmarking Cache Tuning 75

Smashing Magazine

NOVEMBER 17, 2022

Webpage performance test report for the Smashing Magazine website. The Relation Between Images And Web Performance. This data makes it clear that there will be no good performance without well-optimized images. Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page.

Media 105

Media Cache Website Mobile 105

Dean Hume

JULY 5, 2016

Without a doubt, WebPageTest is one of my favourite web performance testing tools. It's completely free to use and is such a powerful way to test your web pages from different locations all over the world. Tracking scripts, A/B testing and adverts are just a few of the many reasons why you would want to use a 3rd party library.

Website 40

Website Metrics Speed Testing 40