DZone

JANUARY 19, 2023

There may be a scenario when you want to test an application when the network is slow(we also call it high network latency). Or you are reproducing a customer scenario(having high network latency) where some anomalous behavior is observed. In the Chrome browser, we can easily Simulate a slower network connection.

Latency 239

Latency Network Testing 239

DZone

SEPTEMBER 30, 2024

What Is Network Sniffing? Sniffing includes the passive interception of data packets crossing a network with further analysis. Initially, sniffing was developed to help network administrators troubleshoot connectivity problems, and since then, it has evolved into an important technique of network management and security testing.

Network 173

Network Traffic Software Software 173

Scalegrid

MAY 2, 2019

We often undertake testing of failover characteristics of various MongoDB drivers to qualify them for production use cases, or when our customers ask us for advice. Testing Failover Behavior. You can test the resilience of your applications by inducing failovers while your workload runs. servers.mongodirector.com:27017 (X.X.X.X)

Testing 55

Testing Network Database Servers 55

DZone

SEPTEMBER 13, 2021

But, performance testing is a little tricky. If you sniff the traffic, you don't get any network data. If you are working on Shiny apps performance testing, then this blog article is for you. This blog article explains load testing shiny apps using shinyloadtest package. What Is Shiny?

Testing 276

Testing Performance Testing Traffic Network 276

DZone

JULY 31, 2024

A/B testing is the gold standard for online experimentation used by most companies to test out their product features. Whereas A/B test experimentation works just fine in most settings, it is particularly susceptible to interference bias, particularly in the case of online marketplaces or social networks.

Testing 259

Testing Network 259

DZone

JANUARY 24, 2022

What Is Protocol Testing? Protocol Testing is a method of checking communication protocols in the domains of Switching, Wireless, VoIP, Routing, etc. The primary goal of protocol testing is to check the structure of packets that are sent over a network using protocol testing tools. Types of Protocols.

Wireless 243

Wireless Testing Testing Tools Network 243

Dynatrace

MARCH 5, 2025

Industry certification for Dynatrace Cost & Carbon Optimization To enhance the trust our customers and partners have in our approach, we commissioned the Sustainable Digital Infrastructure Alliance (SDIA) to test and certify the Cost & Carbon Optimization app. Static assumptions are: Local network traffic uses 0.12

Energy 223

Energy Analytics Traffic Cloud 223

The Netflix TechBlog

APRIL 20, 2020

How Netflix brings safer and faster streaming experience to the living room on crowded networks using TLS 1.3 We want playback to start instantly and to never stop unexpectedly in any network environment. Therefore, it requires more messages to perform a handshake and two network round trips. Reduced Handshake TLS 1.2

Network 245

Network Media Transportation Traffic 245

DZone

NOVEMBER 23, 2021

SpeedTest, Speed from Cloudflare , Netflix's Fast , or if you use Google search , you can test the internet speed and its analytics. In this blog article, we will deep dive into network quality and its usage. In macOS Monterey, Apple has released a command-line tool called networkQuality. Launching networkQuality.

Internet 189

Internet Internet Speed Network 189

Dynatrace

JUNE 7, 2019

With private synthetic browser monitors, we bring the testing capabilities available in public locations right into your own environment. It took us no time and has already payed off, detecting issues during the weekend when nobody in our offices was using the tested apps. REST API testing for mobile app monitoring.

Network 203

Network Monitoring Servers Hardware 203

DZone

JULY 26, 2022

In QA and software testing world, a compatibility test is a kind of test performed to scrutinize whether the software or app is competent of running on multiple OSs, mobile devices, browsers, applications, network environments, and more. What Is the Compatibility Test?

Testing 246

Testing Hardware Mobile Operating System 246

Dynatrace

DECEMBER 8, 2022

DevOps platform engineers are responsible for cloud platform availability and performance, as well as the efficiency of virtual bandwidth, routers, switches, virtual private networks, firewalls, and network management. Open source automated browser and testing tool. ” What does a DevOps platform engineer do?

DevOps 246

DevOps Engineering Testing Open Source 246

Alex Podelko

AUGUST 18, 2019

Following up my post Are Times still Good for Load Testing? , First of all, integrating into agile development (shift-left / continuous performance testing) and integrating into performance information loop with production (shift-right) to form a holistic performance view. I decided to answer multiple comments here separately.

Performance Testing 243

Performance Testing Testing Performance Testing Tools 243

DZone

DECEMBER 28, 2020

Performances testing helps establish the scalability, stability, and speed of the software application. Numerous kinds of performance testing imitate several possible user scenarios and know the behavior of the apps. Performance testing is mainly a subset of Performance engineering and is also referred to as ' Perf Tests.'

Performance Testing 230

Performance Testing Testing Tools Testing Performance 230

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 246

Testing Entertainment Metrics Social Media 246

Dynatrace

AUGUST 8, 2024

They may stem from software bugs, cyberattacks, surges in demand, issues with backup processes, network problems, or human errors. These issues can arise from errors in the code, insufficient testing, or unforeseen interactions among software components. Let’s explore each of these elements and what organizations can do to avoid them.

Software 290

Software Software Infrastructure Network 290

The Netflix TechBlog

FEBRUARY 13, 2024

by Moshe Kolodny In this post, we’re excited to introduce SafeTest, a revolutionary library that offers a fresh perspective on End-To-End (E2E) tests for web-based User Interface (UI) applications. Inability to test CORS setup or GraphQL calls. Complex and unintuitive authoring and debugging of tests.

Testing 253

Testing Code Servers Testing Tools 253

Dynatrace

MARCH 17, 2025

The PCI DSS framework includes maintaining a secure network, implementing strong access control measures, and regularly monitoring and testing networks. These standards protect card information during and after financial transactions by ensuring that the transactions are processed in a secure environment.

Analytics 147

Analytics Innovation Network Efficiency 147

Scalegrid

AUGUST 22, 2019

For test purposes, DCS can be installed on same nodes running PostgreSQL. High Availability Test Scenarios. We conducted a few tests on PostgreSQL HA management using Patroni. All of these tests were performed while the application was running and inserting data to the PostgreSQL database. Standby Server Tests.

Availability 277

Availability Servers Network Testing 277

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 219

Performance Testing Testing Performance Strategy 219

CSS Wizardry

OCTOBER 16, 2023

Compressing them over the network: Which compression algorithm, if any, will we use? In one test, I concatenated it all into one big file, and the other had the library split into 12 files. Read the complete test methodology. Compress The above tests were run with Brotli compression 2. It’s a balancing act for sure. ?

Cache 353

Cache Latency Strategy Speed 353

The Netflix TechBlog

MAY 1, 2019

Creative choices increasingly tested the limits of our encoding quality. Based on internal listening tests, listening test results provided by Dolby, and scientific studies, we determined that for Dolby Digital Plus at and above 640 kbps, the audio coding quality is perceptually transparent. We began streaming 5.1

Engineering 274

Engineering Network Media Entertainment 274

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. The fixed-bitrate ladder starts at 560 kbps which may be too high for some cellular networks. shot-optimized encoding and 4K VMAF model ?—?and

Network 336

Network Storage Innovation Mobile 336

Dynatrace

AUGUST 21, 2024

These releases often assumed ideal conditions such as zero latency, infinite bandwidth, and no network loss, as highlighted in Peter Deutsch’s eight fallacies of distributed systems. Chaos engineering is a practice that extends beyond traditional failure testing by identifying unpredictable issues.

Engineering 262

Engineering Systems Latency Metrics 262

Dynatrace

JULY 8, 2019

I’ve been speaking to customers over the last few months about our new cloud architecture for Synthetic testing locations and their confusion is clear. When we wanted to add a location, we had to ship hardware and get someone to install that hardware in a rack with power and network. Sound easy? Try doing that in India.

Cloud 203

Cloud Hardware Testing Logistics 203

Dynatrace

DECEMBER 16, 2020

Automatically run thousands of automated tests. Ensure manual penetration testing. Access to source code repositories is limited on both the network and the user level. Source code management systems are only accessible from within the Dynatrace corporate network. Automatically sign and verify during installation.

Software 289

Software Software Development AWS 289

The Netflix TechBlog

JUNE 14, 2023

The three strategies we will discuss today are AB Testing , Replay Testing, and Sticky Canaries. To launch Phase 1 safely, we used AB Testing. To launch Phase 2 safely, we used Replay Testing and Sticky Canaries. We knew we could test the same query with the same inputs and consistently expect the same results.

Traffic 357

Traffic Latency Metrics Cache 357

Dynatrace

MARCH 27, 2025

The second flaw that is being exploited is the process of the ingress controller to test arbitrary admission templates via the nginx NGINX -t command. Check out the Network functions topic in the Dynatrace docs to learn more about the command.

Network 130

Network Internet Internet Code 130

The Netflix TechBlog

APRIL 29, 2019

Open Connect Open Connect is Netflix’s content delivery network (CDN). video streaming) takes place in the Open Connect network. The network devices that underlie a large portion of the CDN are mostly managed by Python applications. If any of this interests you, check out the jobs site or find us at PyCon. are you logged in?

Open Source 280

Open Source Network Infrastructure Big Data 280

Dynatrace

SEPTEMBER 23, 2021

To function effectively, containers need to be able to communicate with each other and with network services. If containers are run with privileged flags, or if they receive details about host processes, they can easily become points of compromise for corporate networks. Source code tests. Network scanners.

Open Source 279

Open Source Benchmarking Best Practices Network 279

DZone

JULY 2, 2020

We all know the benefits of having a well-maintained Linkedin profile: recruiters reach out to you, you can show off skills and achievements, display personal recommendations, network, etc. But, did you know that Linkedin is also an amazing place to find great resources to learn from?

Network 246

Network Software Software Testing 246

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 241

Tuning Monitoring Network Best Practices 241

Smashing Magazine

FEBRUARY 12, 2025

Connecting to a server on the web typically takes three round trips on the network: DNS: Looking up the server IP address. What Network Latency Means For Time To First Byte Lets add up all the network round trips in the example above: 2 server connections: 6 round trips. Here, Ive tested a website thats hosted in Brazil.

Servers 78

Servers Latency Cache Website 78

DZone

OCTOBER 18, 2023

Web services are necessary for seamless data exchange and effective communication between various software components, whether it be an e-commerce platform, a banking application, or a social media network. Thorough testing is essential to guaranteeing the dependability, security, and performance of these web services.

Social Media 147

Social Media Testing Media Strategy 147

Dynatrace

MAY 21, 2021

The control plane also provides an API so operators can easily manage traffic control, network resiliency, security and authentication, and custom telemetry data for each service. A service mesh enables DevOps teams to manage their networking and security policies through code. Why do you need a service mesh?

Traffic 279

Traffic DevOps Infrastructure Network 279

Dynatrace

AUGUST 13, 2024

Through rigorous testing, dependency management, continuous monitoring, and phased rollouts, we’ve prioritized the development of OneAgent with the highest possible reliability and security standards. Any required dependencies are thoroughly tested and fixed to specific versions, minimizing the risk of introducing untested code.

Monitoring 279

Monitoring Open Source Testing Software 279

Scalegrid

SEPTEMBER 5, 2024

In our three-part series of posts on HA for PostgreSQL, we’ll share an overview, the prerequisites, and the working and test results for each tool. Tailor the configurations within this file to align with your particular network setups and needs. Standby Server Tests Sl. Master/Primary Server Tests Sl.

Availability 257

Availability Servers Database Open Source 257