DZone

JULY 21, 2021

In this article, we are going to use how you can run distributed load testing in JMeter using the VirtualBox setup. I have already posted videos about distributed load testing on AWS and Raspberry Pi. You need more than one machine to run the load tests. Why Use Distributed Load Testing?

Testing 246

Testing AWS Software Software 246

DZone

NOVEMBER 11, 2019

Find out how to run video streaming performance tests! Using open-source tools to stress test video streaming at scale.

Performance Testing 100

Performance Testing Open Source Testing Performance 100

DZone

AUGUST 28, 2020

“That’s one of the best descriptions of the mission of software testing that I’ve heard in 25 years. This was Alan Shimel’s response to Dr. Grigori Melnik’s passionate and inspiring take on what software testing involves. That was beautiful!”.

Testing 173

Testing DevOps Software Software 173

Dynatrace

DECEMBER 8, 2022

Rob Jahn, Dynatrace senior technical partner manager, and Andreas Grabner, Dynatrace DevOps activist discussed the role of platform engineers in the video “ Deploy, Test, Evaluate, Repeat : The Power of Webhooks for DevOps Platforms Engineers.” Open source automated browser and testing tool. Atlassian Jira.

DevOps 187

DevOps Engineering Testing Open Source 187

Apica

JULY 1, 2022

And with streaming services increasing all the time, more and more providers are embracing technologies that allow them to provide video content through browsers and a variety of dedicated apps. DASH operates in a similar manner over HTTP, and both formats break videos up into chunks that are encoded at different levels of quality.

Internet 52

Internet Internet Latency Virtualization 52

Abstracta

NOVEMBER 4, 2019

Using open source tools to stress test video streaming at scale In this post, I want to share something that we have been working on with BlazeMeter for. The post How to Run Video Streaming Performance Tests with the HLS Plugin for JMeter appeared first on Abstracta Software Testing Services.

Performance Testing 73

Performance Testing Testing Performance Open Source 73

The Netflix TechBlog

SEPTEMBER 22, 2021

Martin Tingley with Wenjing Zheng , Simon Ejdemyr , Stephanie Lane , and Colin McFarland This is the second post in a multi-part series on how Netflix uses A/B tests to inform decisions and continuously innovate on our products. An A/B test is a simple controlled experiment. Figure 2: A simple A/B test. Let’s say?—?this

Testing 245

Testing Entertainment Metrics Social Media 245

The Netflix TechBlog

DECEMBER 14, 2023

You can read more about Data Mesh, Netflix’s next-generation stream processing platform, here Building Reliable Data Pipelines Holden Karau, OSS Engineer, Data Platform Engineering, talks about the importance of reliable data pipelines and how to build them covering tools from testing to validation and auditing. In this video, Sr.

Data Engineering 259

Data Engineering Engineering Software Engineering Best Practices 259

Dynatrace

MAY 7, 2024

If you’d like to learn more about the updates, don’t miss Henrik’s video: Fluent Bit 3.0 Use the Expect plugin Start small and test that you’re achieving what you expect by using the Expect plugin , a gatekeeper that helps your pipeline be more efficient by blocking content that doesn’t follow the rules you put in place.

Best Practices 239

Best Practices IoT Metrics Storage 239

The Netflix TechBlog

AUGUST 28, 2020

As the number of 4K titles in our catalog continues to grow and more devices support the premium features, we expect these video streams to have an increasing impact on our members and the network. We also show the corresponding full frame which helps to get a sense of how the cutout fits in the corresponding video frame.

Network 330

Network Storage Innovation Mobile 330

TechBeacon Testing

APRIL 1, 2021

Talk to 10 test automation experts on how to get started (or get better at your job), and you're likely to get 12 different answers. We know, because we tried, asking not for general, vague advice such as "Learn to code," but for specific websites, books, videos, and other resources to study.

Engineering 132

Engineering Testing Website Code 132

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 214

Testing Open Source Metrics Infrastructure 214

The Netflix TechBlog

OCTOBER 26, 2021

Martin Tingley with Wenjing Zheng , Simon Ejdemyr , Stephanie Lane , and Colin McFarland This is the fourth post in a multi-part series on how Netflix uses A/B tests to inform decisions and continuously innovate on our products. Have a look at Part 1 (Decision Making at Netflix), Part 2 (What is an A/B Test?), Need to catch up?

Testing 202

Testing Latency Metrics Innovation 202

DZone

MAY 7, 2023

Additionally, an HTTP API tool, Postman, is used to interact with our application and to test the API functionality. Note that ScyllaDB University offers a number of videos with additional background that are helpful for this lesson. You’ll be able to create stocks with prices and dates and get a list of stock items. For example:

Storage 273

Storage Servers Testing 273

Speed Curve

DECEMBER 19, 2023

This should do it: I submit the PR with the changes and verify that the deployment was successful in GitHub: Navigating to my SpeedCurve Deployments dashboard, I see that a deploy has automatically been created and it is in queue for testing. I find what I was after when I view the test details for that deployment.

Performance Testing 62

Performance Testing Testing Performance Mobile 62

The Netflix TechBlog

NOVEMBER 11, 2022

Each title is promoted with a custom set of artworks and video assets in support of helping each title find their audience of fans. Here are just a few examples: We maintain a growing suite of video understanding models that categorize characters, storylines, emotions, and cinematography.

Media 239

Media Virtualization Efficiency Innovation 239

The Netflix TechBlog

JUNE 5, 2023

Problem Netflix’s content catalog is composed of video captured and encoded in one of various frame rates ranging from 23.97 24→60, 25→60, etc…), which manifests as choppy video playback as illustrated below: With Judder Without Judder It is important to note that the severity of the judder depends on the replication pattern.

Entertainment 306

Entertainment Engineering Technology Technology 306

The Netflix TechBlog

NOVEMBER 9, 2021

by Liwei Guo , Ashwin Kumar Gopi Valliammal , Raymond Tam , Chris Pham , Agata Opalach , Weibo Ni AV1 is the first high-efficiency video codec format with a royalty-free license from Alliance of Open Media (AOMedia), made possible by wide-ranging industry commitment of expertise and resources. Video encoding is essentially a search problem?—?the

Media 246

Media Open Source Efficiency Software Engineering 246

Dynatrace

JUNE 1, 2023

for the workout video playback feature. The ApDex SLO ensures that users have a positive experience when watching workout videos within the fitness app. and above indicates that most users find the video playback performance excellent or at least acceptable. The Apdex score of 0.85

Latency 173

Latency Website Traffic Virtualization 173

Smashing Magazine

NOVEMBER 5, 2018

Improve Animated GIF Performance With HTML5 Video. Improve Animated GIF Performance With HTML5 Video. Each frame in the animation is restricted to a palette of just 256 colors, and over the years, advances in compression technology has made leading to several improvements the way animations and video files are compressed and used.

Performance 60

Performance Website C++ Open Source 60

Dynatrace

JUNE 1, 2023

for the workout video playback feature. The ApDex SLO ensures that users have a positive experience when watching workout videos within the fitness app. and above indicates that most users find the video playback performance excellent or at least acceptable. The Apdex score of 0.85

Traffic 173

Traffic Latency Website Virtualization 173

Alex Podelko

SEPTEMBER 8, 2020

Some time ago Federico Toledo published Performance Testing with Open Source Tools- Busting The Myths. I remember really liking the technical side of these tests. But I must confess I was not too fond of having to report the results to stakeholders or deal with political/personal issues related to (poor) test results.

Open Source 223

Open Source Performance Testing Testing Performance 223

Smashing Magazine

MARCH 2, 2021

The State Of Mobile And Why Mobile Web Testing Matters. The State Of Mobile And Why Mobile Web Testing Matters. And to ensure the quality of a product, we always need to test — on a number of devices, and in a number of conditions. Also, there was a 65% increase in video consumption on mobile devices in 2020.

Mobile 134

Mobile Testing Website Benchmarking 134

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

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

The Netflix TechBlog

MAY 1, 2019

Most conversations about streaming quality focus on video. We’re really proud of the improvements we’ve brought to the video experience, but the focus on those makes it easy to overlook the importance of sound , and sound is every bit as important to entertainment as video. is the story nearly as thrilling and emotional?

Engineering 274

Engineering Network Media Entertainment 274

The Netflix TechBlog

SEPTEMBER 4, 2020

Our first step towards addressing this challenge is to actively engineer the removal of manual and subjective testing approaches across different functional touch points of the Netflix application on a streaming device. Why test High Definition Multimedia Interface (HDMI) ?

Media 163

Media Testing Entertainment Virtualization 163

The Netflix TechBlog

APRIL 17, 2019

What does this example have to do with software development and video encoding? Intel and Netflix announced their collaboration on a software video encoder implementation called SVT-AV1 on April 8, 2019. The first successful digital video standard was MPEG-2, which truly enabled digital transmission of video.

Open Source 166

Open Source Scalability Speed Efficiency 166

Testsigma

AUGUST 12, 2021

The Importance of Testing Web Applications. To ensure our web app performs as intended across various devices and browsers — we have to test our web app. Plus, if we’re adding features like live chat, forms, e-commerce integrations, push notifications, and the like, our app should go through some heavy testing.

Testing 102

Testing Testing Tools Mobile Cloud 102

Speed Curve

MARCH 12, 2023

Tests - We've had a lot of requests for this, so we're happy to deliver it. You can now see a list of your latest synthetic tests and spot any failed tests. Tests Dashboard We love simplicity, and this dashboard is a great example of why. You can then click through to the test details to determine why the test failed.

Testing 52

Testing Metrics Monitoring Website 52

Testsigma

DECEMBER 12, 2020

Cross browser testing can be a real headache for a software tester. You may have tested your application on the latest versions of Chrome, Firefox, and Edge, but more often than not, some browsers such as Internet Explorer, Opera Mini, UC Browser get missed out. Cross-Browser Testing Abilities. Parallel Test Execution.

Testing Tools 93

Testing Tools Testing Operating System Internet 93

CSS - Tricks

SEPTEMBER 26, 2019

In this week's roundup: fighting shifty layouts, some videos might be a bit stalled, and a new way to take screenshots in Firefox. After completing the test, inspect the captured LayoutShifts entries on the Custom Metrics page, which is linked from the Details section. A high bitrate can cause your videos to stall.

Website 42

Website Metrics Speed Servers 42

The Netflix TechBlog

SEPTEMBER 8, 2020

As an example, to render the screen shown here, the app sends a query that looks like this: paths: ["videos", 80154610, "detail"] A path starts from a root object , and is followed by a sequence of keys that we want to retrieve the data for. Instead, it is part of a different path : [videos, <id>, similars].

Latency 233

Latency Cache Java Traffic 233

KeyCDN

FEBRUARY 14, 2019

Thanks to their simplicity and widespread support, GIF files remain wildly popular despite the dozens of other image and video formats available today. There’s a debate among web developers whether or not animated image formats should be ditched altogether in favor of video formats.

Speed 50

Speed Website Latency Cache 50

Testsigma

MAY 5, 2021

To ensure the features run uniformly across various browsers and OS versions that our users have, we should perform multi-browser testing. Let us understand the importance of multi-browser testing before we proceed. You can also check out our post on the most common issues one can face while performing browser compatibility tests.

Testing Tools 74

Testing Tools Testing Internet Internet 74

Dynatrace

NOVEMBER 30, 2023

Below is a Dynatrace honeycomb chart depicting the performance of the synthetics tests tracked by the Dynatrace Business Insights team. These tests open the retail home pages from various locations across America on a consistent basis. This video (below) illustrates my experience.

Retail 217

Retail Social Media Performance Benchmarking 217

Testsigma

JUNE 12, 2021

A recommended approach for considering a user story complete is when the corresponding feature that was being developed, is tested and automated too. When all of these activities for a story are planned for a sprint, the test automation comes to be known as ‘insprint test automation’.

Testing 95

Testing Cloud Infrastructure Technology 95