The Netflix TechBlog

OCTOBER 19, 2020

If we had an ID for each streaming session then distributed tracing could easily reconstruct session failure by providing service topology, retry and error tags, and latency measurements for all service calls. Edgar uses this infrastructure tagging schema to query and join traces with log data for troubleshooting streaming sessions.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Percona

APRIL 10, 2023

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 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 20.7 100>-<file words_alpha.txt.100>-<file

Testing 102

Testing C++ Open Source Database 102

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

Dynatrace

JULY 13, 2021

As organizations aim for faster delivery of value to their customers, the frequency of releases inevitably increases, which introduces risks and uncertainty into production systems—unless automated tests and quality gates can be leveraged to provide confidence. Following the evaluations, the results are logged in Dynatrace as events.

Cloud 237

Cloud DevOps Benchmarking Speed 237

Testlodge

OCTOBER 1, 2021

Table of Contents What is HTML Validation Testing? Benefits of HTML Validation Testing How to Validate HTML CSS and JavaScript Validation Challenges Tips Conclusion. What is HTML Validation Testing? Hypertext Markup Language (HTML) uses tags and attributes to control how the text in the front end of a website is displayed.

Testing 61

Testing Best Practices C++ Code 61

CSS Wizardry

OCTOBER 27, 2018

A lot of companies—even if they are aware that performance is key to their business—are often unsure of how, when, or where performance testing sits within their development lifecycle. Each kind of testing is listed chronologically—that is, you should do them in order—but all complement each other, and will ultimately feed into one another.

Performance Testing 172

Performance Testing Testing Performance Strategy 172

The Netflix TechBlog

MARCH 10, 2021

This mapping can be generated through role tags that indicate which users/groups are allowed to retrieve credentials for the role, ConsoleMe’s Dynamic Configuration , or through an organization’s custom logic. Administrators use it to manage permissions and tags for common resource types. Also, we’re hiring ! What’s next?

AWS 251

AWS Cloud Games Infrastructure 251

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 243

DevOps Open Source Cloud Azure 243

Dynatrace

SEPTEMBER 13, 2023

It also maintains topological relationships between monitored entities, such as site, group, and controller, along with any relevant tags applied by Citrix admins. Add synthetic availability tests to proactively check infrastructure health Enable synthetic monitors to check the availability of your Citrix login from client locations.

Monitoring 213

Monitoring Healthcare Infrastructure Metrics 213

Speed Curve

APRIL 27, 2022

The test in top row has the anti-flicker snippet in place. The test in the bottom row has the anti-flicker snippet removed. These tests were over a fast network connection, so First Contentful Paint and Last Contentful Paint happened simultaneously. Unfortunately, the performance of third-party tags can be pretty opaque.

Performance 145

Performance C++ Google Retail 145

MachMetrics

FEBRUARY 27, 2020

However, you have likely used the Web UI that Google uses to allow you to test websites for speed – Google PageSpeed Insights. Lighthouse is a completely open-source tool that allows users to test any website in a multitude of ways. Finally, decide if you want to throttle your test to a certain speed, and run the audit.

Google 82

Google Speed Testing Tools Testing 82

Dynatrace

DECEMBER 4, 2019

To tackle this problem Christian experimented with automatically creating Dynatrace Synthetic Tests as part of his GitLab Pipelines. Create Synthetic Test : Query the readiness endpoint and ingress of the deployed service, then create a Dynatrace Synthetic Test through the Dynatrace Synthetic API.

Monitoring 144

Monitoring Best Practices Testing Network 144

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. Another major trend is using multiple third-party components and services, which may be not easy to properly incorporate into testing. – Cloud.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

Dynatrace

NOVEMBER 28, 2022

In our internal testing of SnapStart, we noticed an improved time of 200 to 300 milliseconds in P90 when compared to Lambda On-Demand; however, your results may vary. Saving your cloud operations and site reliability engineering teams hours of guesswork and manual tagging, the Davis AI engine analyzes billions of events in real time.

Lambda 218

Lambda AWS Serverless Latency 218

O'Reilly

OCTOBER 12, 2021

We know how to test whether or not code is correct (at least up to a certain limit). Given enough unit tests and acceptance tests, we can imagine a system for automatically generating code that is correct. But we don’t have methods to test for code that’s “good.” There are lots of ways to sort.

Code 123

Code Programming C++ Testing 123

The Morning Paper

OCTOBER 1, 2020

The scheme above gives arbitrary precision, but doesn’t let us test for equality. So long as only exact comparison is used to test for equality, and comparison and toStringTruncated are only used when isComparable() and exactlyTruncatable() yield true, everything behaves according to normal mathematical rules. Deciding equality.

Java 143

Java Hardware Open Source Testing 143

Dynatrace

DECEMBER 6, 2022

The ability to isolate certain software capabilities makes it easier to test, preview, release, and roll back small functional increments. Using scripting tags, feature flags work without having to deploy new code. Also referred to as toggles, feature flags enable development teams to test new features in production with minimal risk.

Open Source 200

Open Source DevOps Java Code 200

The Netflix TechBlog

NOVEMBER 11, 2022

These timecode tags enable efficient discovery, freeing our creators from hours of categorizing footage so they can focus on creative decisions instead. Contributors enjoy a tremendous amount of latitude to come up with experiments and new approaches, rapidly test them in production contexts, and scale the impact of their work.

Media 239

Media Virtualization Efficiency Innovation 239

Testsigma

MAY 5, 2020

Regression Testing is put in place just to avoid such situations. Regression testing can be defined as testing done to verify if the code changes in a software/app have any kind of impact on the existing functionality of the product. Check out a detailed guide on regression testing. There might be several modules in it.

Testing 55

Testing Testing Tools Software Software 55

Dynatrace

JULY 30, 2021

All it takes is putting two tags ( keptn_managed and keptn_service ) on the monitored Dynatrace service we want to enable a quality gate for. Both environments are installed with the Keptn Execution Plane allowing multi-stage automation sequence including monitoring as code, deployment, testing and cross-stage promotion.

Cloud 212

Cloud DevOps Azure Virtualization 212

Dynatrace

AUGUST 16, 2021

Automating lifecycle orchestration including monitoring, remediation, and testing across the entire software development lifecycle (SDLC). Providing standardized self-service pipeline templates, best practices, and scalable automation for monitoring, testing, and SLO validation. Kubernetes pod attributes. Annotation. Configuration.

Software 246

Software Software Open Source Azure 246

Dynatrace

SEPTEMBER 29, 2021

In this example, new tagging rules are shown. Monitoring as Code GitHub action example to configure tagging rule. A Keptn project with environment stages (such as DEV, TEST, PROD). The example is taken from this collection of files. The result is a new or updated configuration within Dynatrace.

Software 194

Software Software Open Source DevOps 194

CSS - Tricks

OCTOBER 5, 2021

From there, Harry gets very clever with selectors, determining problematic situations from the usage and placement of certain tags. The stylesheet has loads of little things you can test for, like attributes you don’t need, blocking resources, and elements that are out of order. That’s just darn clever, that.

Performance 132

Performance Media Software Software 132

The Netflix TechBlog

OCTOBER 27, 2021

It allows data scientists to define ML workflows, test them locally, scale-out to the cloud, and deploy to production in idiomatic Python code. It makes it easy for data scientists to express even complex machine learning applications in idiomatic Python, test them locally, or scale them out in the cloud?—?all

Open Source 222

Open Source Monitoring Scalability Code 222

Percona

FEBRUARY 27, 2023

The transition to Apple Silicon (the M1, M2 ARM-based CPUs) has been great for macOS fans in many ways, but it’s added some friction when you want to run containers locally for testing or development. 3-arm64 with the appropriate image tag. 3-arm64 Note that you’ll want to replace 6.0.4-3-arm64 Prefer working with Podman?

Servers 91

Servers AWS Architecture Efficiency 91

Smashing Magazine

AUGUST 4, 2021

and pass the isLast prop as we did before, but we also additionally wrap this cloned element in an anchor tag. The second statement which logs React.Children.toArray(children) logs: [ Object1, -> first anchor tag Object2, -> second anchor tag Object3, -> first fruit Object4, -> second fruit Object5, -> third fruit ].

Open Source 138

Open Source C++ Google Website 138

Dynatrace

FEBRUARY 1, 2020

Modern web applications rely heavily on Content Delivery Networks (CDNs) and 3rd-party integrations (for example, web analytics, tag managers, chat bots, A/B testing tools, ad providers, and more). In Part 1 we’ll dive into: The need to extend synthetic tests to cope with the CDN-error blind spot. Dynatrace news.

Tuning 185

Tuning Monitoring Network Best Practices 185

Testsigma

JANUARY 4, 2021

It is quite expected that developers may omit certain ‘closing tag’ or ‘semicolon’ in the syntax while writing code. Read more on Cross-Browser compatibility testing of responsive applications. Check DOCTYPE tag. Older versions of Internet Explorer check for the DOCTYPE tag at the beginning of the code.

Testing Tools 59

Testing Tools Mobile Internet Internet 59

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. Training of Developers and Testers.

Software 55

Software Software Testing DevOps 55

KeyCDN

SEPTEMBER 12, 2019

Most of you have probably seen the following Google PageSpeed Insights optimization suggestion at one point or another when running a speed test: By compressing and adjusting the size of … you can save 14.2 Image Alt Text Alt text, also referred to as alt tags, describe the image and purpose for it on the page.

Social Media 106

Social Media Media Google Website 106

Dynatrace

JULY 23, 2019

install_requires=["flask"," oneagent-sdk "], extras_require={"test": ["pytest", "coverage"]}, ). To link the trace on the receiving side, it’s important to make sure that the Dynatrace tag is added to the request headers. trace_outgoing_web_request(url, 'GET') as tracer: # Get the Dynatrace tag. url = '[link].

Monitoring 135

Monitoring Software Software Database 135

Dynatrace

MAY 2, 2019

Best practice: Filter results with management zones or tag filters. If your environment is organized with tags, you can add tag filters to further reduce the result set and to speed up the query. Let’s begin with a simple example of generating a report of all hosts that Dynatrace monitors within a specific management zone.

Best Practices 128

Best Practices Monitoring Cache Speed 128

CSS Wizardry

JULY 21, 2018

Set Up Regression Tests. For longer-term refactoring or auditing, it can be useful to set up a formal regression testing tool such as BackstopJS. Ideally, we’d have a regression testing suite in-place permanently, so this is as good a time as any to start. This will alert me if I do any severe, customer-facing damage to the UI.

Programming 142

Programming C++ Database Code 142

Testsigma

DECEMBER 28, 2019

During the entire SDLC phase, there are various kinds of testing performed at different stages. Each stage of testing has different objectives to fulfil. The testing phase starts with unit testing followed by integration testing, system testing, system integration testing, acceptance testing, and regression testing.

Testing 53

Testing Hardware Testing Tools Strategy 53

The Netflix TechBlog

NOVEMBER 13, 2023

Music information retrieval There are a few studio use cases where music activity metadata is important, including quality-control (QC) and at-scale multimedia content analysis and tagging. One of the fundamental issues encountered during the annotation of our manually-labeled TVSM-test set, was the definition of music and speech.

Architecture 224

Architecture Energy Benchmarking Processing 224

Percona Community

DECEMBER 2, 2021

We encourage you to try this PMM Preview Release in testing environments only, as these packages and images are not fully production-ready. Release Notes can be found here PMM server docker Instructions docker tag: perconalab/pmm-server:2. The final version is expected to be released through the standard channels in the coming week.

Servers 52

Servers Monitoring Availability Testing 52

Percona Community

NOVEMBER 10, 2021

We encourage you to try this PMM Preview Release in testing environments only, as these packages and images are not fully production-ready. Release Notes can be found here PMM server docker Instructions docker tag: perconalab/pmm-server:2. The final version is expected to be released through the standard channels in the coming week.

Servers 52

Servers Monitoring Availability Testing 52