DZone

APRIL 6, 2020

You have consistently written unit tests and you have a line coverage of, let us say, 80% and all of your tests pass. But then you change your code and still all of your tests pass although you have changed code which is covered by your unit tests. We value our code quality very much. Introduction.

Testing 220

Testing Metrics Code 220

Dynatrace

FEBRUARY 21, 2024

Organizations can customize quality gate criteria to validate technical service-level objectives (SLOs) and business goals, ensuring early detection and resolution of code deficiencies. Automating quality gates is ideal, as it minimizes manually checking and validating key metrics throughout the SDLC.

Speed 207

Speed Software Software Latency 207

The Netflix TechBlog

MAY 4, 2023

The second phase involves migrating the traffic over to the new systems in a manner that mitigates the risk of incidents while continually monitoring and confirming that we are meeting crucial metrics tracked at multiple levels. Replay Solution The replay traffic testing solution comprises two essential components.

Traffic 339

Traffic Latency Tuning Systems 339

DZone

MAY 15, 2020

Now that you’ve deployed your code, it’s time to monitor it, collect data, and analyze your metrics. You’ve just released your new app into the wild, live in production. Your job is done, right? Without application performance monitoring in place, you can’t accurately determine how well things are going. Are people using your app?

Metrics 246

Metrics Performance Development Monitoring 246

Dynatrace

FEBRUARY 28, 2024

In the previous blog post of this series , we discussed the crucial role of Dynatrace as an orchestrator that steps in to stop the testing phase in case of any errors. It involves carefully examining the test results from the previous testing phase. Configure an action for the Site Reliability Guardian in the workflow.

DevOps 203

DevOps Metrics Engineering Analytics 203

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 Energy 245

DZone

APRIL 16, 2021

Lines of code govern almost everything we do in our day-to-day activities. Introduction. Today, the demand for software is higher than ever. The way we buy, the way we sell, even the way we communicate. In 2019, according to Evans Data Corporation, there were 23.9 million developers worldwide.

Speed 278

Speed Software Software Metrics 278

HammerDB

MARCH 23, 2023

the Transaction Counter and CPU Metrics have been updated on both Windows and Linux to use a package called tkpath enabling more advanced graphic features using the GPU where available. This gives the transaction counter, and CPU metrics, a more updated look and feel, whilst maintaining the previous lightweight impact of the graphical code.

Metrics 70

Metrics Availability Code Testing 70

DZone

FEBRUARY 20, 2023

This talk covers ways to leverage software engineering practices for data engineering and demonstrates how measuring key performance metrics could help build more robust and reliable data pipelines.

Software Engineering 264

Software Engineering Engineering Software Software 264

Dynatrace

APRIL 30, 2021

As organizations develop more applications and microservices, they are discovering they also need to run more performance tests in the same amount of time or less to meet service-level objectives (SLOs) that fulfill service-level agreements (SLAs). How can organizations address this process bottleneck and run more tests in less time?

Engineering 200

Engineering Testing Performance Performance Testing 200

Dynatrace

NOVEMBER 6, 2023

When an incident occurs, developers need to know what data to look at, where the incident occurred, and other relevant metrics. But developers need code-level visibility and code-level data.” That’s not how I envision code-level observability,” Laifenfeld said. KubeCon North America is this week.

Development 262

Development DevOps Programming Cloud 262

DZone

AUGUST 11, 2021

Still, it is limited to being a black box form of monitoring — you're only testing API behavior that you'd only see externally. You'd still have to guess what's causing issues with your APIs as you're only testing, measuring, and monitoring them against metrics you already know — like request rates, error rates, or status codes.

Monitoring 246

Monitoring Metrics Software Software 246

The Netflix TechBlog

FEBRUARY 3, 2021

This framework was initially intended to be internal only, focusing on integration with the Netflix ecosystem for tracing, logging, metrics, etc. There are two different approaches to GraphQL development; schema-first and code-first development. The code in your service only implements this schema.

Open Source 246

Open Source Java Architecture Metrics 246

Speed Curve

DECEMBER 19, 2023

Our purpose in building this integration is to lower the barrier for getting web performance feedback for your code changes, directly in the environment you are working in. Reviewing results Once the testing has finished, I see the results in a SpeedCurve report directly in the comments from my PR in GitHub.

Performance Testing 62

Performance Testing Testing Performance Mobile 62

Dynatrace

FEBRUARY 28, 2024

Department of Veterans Affairs (VA) is packaging application code along with its libraries and dependencies within an executable software unit. Dynatrace container monitoring supports customers as they collect metrics, traces, logs, and other observability-enabled data to improve the health and performance of containerized applications.

Monitoring 183

Monitoring Artificial Intelligence Performance Healthcare 183

Dynatrace

APRIL 5, 2024

In other words, where the application code resides. Error budget burn rate = Error Rate / (1 – Target) Best practices in SLO configuration To detect if an entity is a good candidate for strong SLO, test your SLO. Data Explorer “test your Metric Expression” for info result coming from the above metric.

Efficiency 225

Efficiency Traffic Tuning Metrics 225

Dynatrace

APRIL 18, 2024

It goes beyond traditional monitoring—metrics, logs, and traces—to encompass topology mapping, code-level details, and user experience metrics that provide real-time insights. Shifting left is an approach that includes software quality, performance, and security testing as a part of the SDLC.

DevOps 190

DevOps Engineering Artificial Intelligence Infrastructure 190

Dynatrace

JULY 11, 2023

The forecast operation is selected within the Davis action, and a DQL query is used to specify the set of disks and the capacity indicator metric that should be predicted. Note that you can use any time series data you can fetch from Grail using DQL within the forecast action. You can install Davis® for Workflows via the Dynatrace Hub.

Metrics 203

Metrics Games Analytics Network 203

Dynatrace

DECEMBER 27, 2022

By implementing service-level objectives, teams can avoid collecting and checking a huge amount of metrics for each service. Stable, well-calibrated SLOs pave the way for teams to automate additional processes and testing throughout the software delivery lifecycle. SLOs promote automation. SLOs minimize downtime. Availability.

Software 263

Software Software Benchmarking Latency 263

Dynatrace

SEPTEMBER 22, 2022

Automating tasks throughout the SDLC helps software development and operations teams collaborate while continuously improving how they design, build, test, deploy, release, and monitor software applications. Change failure rate is the percentage of DevOps code changes that lead to failure in production. Automated testing.

DevOps 188

DevOps Innovation Speed Monitoring 188

Dynatrace

NOVEMBER 3, 2023

A platform encompasses a set of tools, services, and infrastructure that enables developers to build, test, and deploy software applications. Other aspects of the discipline — such as infrastructure as code, automation, and standardization — reduce extraneous manual processes to increase developer productivity.

Engineering 212

Engineering DevOps Software Engineering Scalability 212

Dynatrace

MAY 17, 2023

To ensure high standards, it’s essential that your organization establish automated validations in an early phase of the software development process—ideally when code is written. Validation tasks are then extended left to cover performance testing and release validation in a pre-production environment.

DevOps 187

DevOps Traffic Latency Best Practices 187

Dynatrace

NOVEMBER 28, 2022

For AWS Lambda, the largest contributor to startup latency is the time spent initializing an execution environment, which includes loading function code and initializing dependencies. With SnapStart enabled, function code is initialized once when a function version is published. What is Lambda? What is Lambda SnapStart?

Lambda 225

Lambda AWS Serverless Latency 225

The Netflix TechBlog

MAY 21, 2019

using RL agents for test case scheduling By: Stanislav Kirdey , Kevin Cureton , Scott Rick , Sankar Ramanathan Introduction Netflix brings delightful customer experiences to homes on a variety of devices that continues to grow each day. Detect a regression in a test case. These problems could be solved in several different ways.

Testing 163

Testing AWS Lambda Network 163

Dynatrace

SEPTEMBER 13, 2023

Using an interactive no/low code editor, you can create workflows or configure them as code. If so, test against the response time objective under the same Site Reliability Guardian. Workflows are powered by a core platform technology of Dynatrace called the AutomationEngine.

AWS 247

AWS Efficiency Azure Cloud 247

The Netflix TechBlog

SEPTEMBER 8, 2020

On the Android team, while most of our time is spent working on the app, we are also responsible for maintaining this backend that our app communicates with, and its orchestration code. Image taken from a previously published blog post As you can see, our code was just a part (#2 in the diagram) of this monolithic service.

Latency 233

Latency Cache Java Traffic 233

Tasktop

MAY 27, 2021

This time, I spoke to Jeff McCollum, our Product Value Stream Lead for Tasktop Hub , who told me how he used Tasktop Viz and Flow Metrics to perfectly time a major application replatforming. . “I And he uses Flow Metrics to make sure things are being done well and that the value stream is continuously improving. . And it came: .

Metrics 69

Metrics Games Engineering Efficiency 69

Dynatrace

DECEMBER 6, 2022

The ability to isolate certain software capabilities makes it easier to test, preview, release, and roll back small functional increments. In addition to requiring a high degree of custom coding, feature flags can rapidly accrue technical debt that can be opaque to diagnose. But feature flagging can also introduce some issues.

Open Source 207

Open Source DevOps Java Code 207

Tim Kadlec

APRIL 16, 2020

If you’re not familiar, snippets allow you to save little bits of code that you can then quickly run in the console. WebPageTest supports custom metrics, which are pretty much what they sound like: they’re metrics that you define when you run a test. num - scripts ] return document.

Metrics 51

Metrics Media Testing Development 51

Speed Curve

DECEMBER 10, 2017

Network metrics have been around for decades, but rendering metrics are newer. These are a few of the rendering metrics that currently exist. A brief history of performance metrics. Metrics quantify behavior. Metrics quantify behavior. Gaps in today's performance metrics. Speed Index. Start Render.

Metrics 68

Metrics Website Speed Monitoring 68

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 66

Performance Metrics Code Testing 66

Testsigma

MAY 26, 2021

We’ve all heard of data-driven testing and its benefits. But, some data-driven techniques can help us understand if we’ve carried out sufficient testing. When a developer pushes new code to the existing source code repository, the software may not perform as intended. Picture Credit: Positivethinking.tech.

Testing 59

Testing Testing Tools Metrics Code 59

Dynatrace

OCTOBER 24, 2022

Agile companies that adopt continuous software delivery have increasingly enlisted feature flagging to enable more frequent code releases. In its simplest form, a feature flag is a toggle (switch) in an application that turns functionality on or off at runtime without deploying new code.

Software 176

Software Software Open Source Cloud 176

Tim Kadlec

MAY 21, 2020

It was a great excuse for running a split test. Netlify supports branch-bases split testing , so first up was implementing instant.page on a separate branch. Netlify has a feature called Snippet Injection that lets you inject a snippet of code either just before the closing body tag or just before the closing head tag.

Testing 128

Testing Traffic Tuning Metrics 128

Abhishek Tiwari

JULY 8, 2023

Traditional testing and monitoring practices have long been relied upon to achieve this goal. However, the line between testing and monitoring is becoming increasingly blurred with the emergence of synthetic monitoring. Synthetic Monitoring employs software-based agents to actively measure performance metrics.

Monitoring 52

Monitoring Testing Artificial Intelligence Traffic 52

The Netflix TechBlog

AUGUST 30, 2021

By Benson Ma , Alok Ahuja Introduction At Netflix, hundreds of different device types, from streaming sticks to smart TVs, are tested every day through automation to ensure that new software releases continue to deliver the quality of the Netflix experience that our customers enjoy. In this blog post, we will focus on the latter feature set.

Latency 213

Latency Traffic Transportation Hardware 213

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. When testing it, one of our many findings was that developers and devops do not necessarily expect profiling to be included under ” diagnostic tools” as they are now.

Java 246

Java Tuning Testing DevOps 246