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

Dynatrace

FEBRUARY 12, 2024

The OMB memo states that agencies must meet specific goals based on the five pillars of the Cybersecurity and Infrastructure Security Agency (CISA) Zero Trust Maturity Model : identity, devices, networks, applications/workloads, and data. A quick refresher: what is zero trust?

Government 174

Government Analytics Network Traffic 174

The Netflix TechBlog

MARCH 5, 2019

Central engineering teams enable this operational model by reducing the cognitive burden on innovation teams through solutions related to securing, scaling and strengthening (resilience) the infrastructure. All these micro-services are currently operated in AWS cloud infrastructure.

Infrastructure 182

Infrastructure Cloud Scalability AWS 182

Dynatrace

APRIL 8, 2024

Optimize the IT infrastructure supporting risk management processes and controls for maximum performance and resilience. The IT infrastructure, services, and applications that enable processes for risk management must perform optimally. Once teams solidify infrastructure and application performance, security is the subsequent priority.

Analytics 194

Analytics Infrastructure Efficiency Technology 194

DZone

MARCH 20, 2024

Embedded within the Linux kernel, KVM empowers the creation of VMs with their virtualized hardware components, such as CPUs, memory, storage, and network cards, essentially mimicking a machine. Security remains paramount for KVM due to testing and security updates from the open-source community.

Virtualization 124

Virtualization Hardware Open Source Storage 124

Dynatrace

MARCH 14, 2023

Available directly from the AWS Marketplace , Dynatrace provides full-stack observability and AI to help IT teams optimize the resiliency of their cloud applications from the user experience down to the underlying operating system, infrastructure, and services. How does Dynatrace help?

AWS 275

AWS Lambda Serverless Virtualization 275

Dynatrace

OCTOBER 28, 2021

Testing for mishaps you can predict is essential. Chaos engineering is a method of testing distributed software that deliberately introduces failure and faulty scenarios to verify its resilience in the face of random disruptions. Practitioners subject software to a controlled, simulated crisis to test for unstable behavior.

Engineering 218

Engineering Entertainment Cloud Infrastructure 218

Dynatrace

DECEMBER 16, 2020

From the very first days of Dynatrace development, preventing the injection of malicious code that could potentially compromise customer infrastructure, has been a priority. Automatically run thousands of automated tests. Ensure manual penetration testing. These reviews: Automatically scan for vulnerabilities and malware.

Software 227

Software Software Development AWS 227

Dynatrace

OCTOBER 10, 2022

Application developers can spin up isolated test environments that pose no risk to current operations. Then, they can apply DevSecOps best practices to fully test new code and see what breaks without affecting current operations. No infrastructure to maintain. Difficult to test. Faster time to market. Reduced latency.

Serverless 161

Serverless Infrastructure Lambda Latency 161

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

NOVEMBER 28, 2022

Lambda serverless functions help developers innovate faster, scale easier, and reduce operational overhead, removing the burden of managing underlying infrastructure when updating and deploying code. This can cause latency outliers and may lead to a poor end-user experience for latency-sensitive applications. What is Lambda?

Lambda 218

Lambda AWS Serverless Latency 218

Dynatrace

JANUARY 22, 2024

Most AI today uses association-based machine learning models like neural networks that find correlations and make predictions based on them. Software project managers can optimize development processes by analyzing workflow data, such as development time, code commits, and testing phases. However, correlation does not imply causation.

Artificial Intelligence 201

Artificial Intelligence Healthcare Retail Government 201

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. Defect escape rate is the rate of issues and bugs that escape testing and arise after a software application is in production.

DevOps 182

DevOps Innovation Speed Monitoring 182

Dynatrace

FEBRUARY 1, 2022

can grant access to internal networks, and if exploited, makes networks, applications, and devices susceptible to data theft and malware attacks. The vulnerability is located in Log4j 2, an open-source Apache Java software used to run logging services in a host of front-end and backend applications.

Strategy 195

Strategy Games DevOps Open Source 195

Testsigma

SEPTEMBER 23, 2021

Cross-browser testing is performed to be sure that your product is working as expected on the various device, platform, and browser (and their versions) combinations that your customers might be using. However, the pain and efforts associated can be reduced, if the cross-browser testing is cloud-based. Infrastructure.

Cloud 96

Cloud Testing Infrastructure Internet 96

The Netflix TechBlog

NOVEMBER 29, 2023

A vital aspect of such development is subjective testing with HDR encodes in order to generate training data. The pandemic, however, posed unique challenges in conducting a conventional in-lab subjective test with HDR encodes. A/B testing also allows us to get a read on the improvement in quality of experience (QoE).

Open Source 252

Open Source Software Engineering Internet Internet 252

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

Testsigma

AUGUST 24, 2020

Continuous Testing is the process of testing at all stages of software development – one after the another- without any human intervention. Continuous Testing is key to faster delivery of Agile products to the market. But the path to achieving Continuous Testing has its own challenges, most common of which are mentioned below.

Testing 69

Testing Open Source Scalability Latency 69

CSS Wizardry

MAY 31, 2019

One of the quickest wins—and one of the first things I recommend my clients do—to make websites faster can at first seem counter-intuitive: you should self-host all of your static assets, forgoing others’ CDNs/infrastructure. Penalty: Network Negotiation. On a high latency connection, network overhead totals a whopping 5.037s.

Cache 274

Cache Latency Infrastructure Website 274

Scalegrid

JANUARY 8, 2024

AI-driven cloud solutions like ScaleGrid offer a diverse range of database hosting options, robust infrastructure optimized for scalability and security, and enable significant cost reductions, supporting businesses in efficient growth and improved ROI.

Artificial Intelligence 147

Artificial Intelligence Cloud Scalability Analytics 147

The Netflix TechBlog

SEPTEMBER 8, 2020

The big difference from the monolith, though, is that this is now a standalone service deployed as a separate “application” (service) in our cloud infrastructure. For the migration, testing was a first-class citizen. Replay Testing Enter replay testing.

Latency 233

Latency Cache Java Traffic 233

DZone

MAY 5, 2020

Amazon EFS enables you to build cloud-based network file systems for Linux-based workloads and applications. Because EFS structure and functionality are similar to on-premise infrastructure, you can easily transfer existing files.

Performance 130

Performance AWS Infrastructure Network 130

IO River

NOVEMBER 2, 2023

D) By running performance testing on your infrastructure.(B+C) Then the request travels through the CDN's global network until it reaches its origin.Every CDN provider has a different algorithm that decided how to route the traffic to the data center. Make sure you take it under your consideration

Monitoring 52

Monitoring Performance Traffic C++ 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 Cloud 213

Dynatrace

NOVEMBER 16, 2021

Additionally, you don’t have to worry about scaling the Prometheus infrastructure because doesn’t even have to be collected by the Prometheus server. How to test the configuration? To ensure the correct configuration of the Dynatrace annotations, we recommend testing the settings by sending a request to the exporter’s HTTP endpoint.

Metrics 194

Metrics Infrastructure Open Source Database 194

Testsigma

SEPTEMBER 16, 2021

This outlines the need for using cloud-based automation platforms for mobile testing. Ideal companion of Continuous Testing and Agile. Agile methodology and CI/CD require continuous testing, review, and incorporation of changes quickly on a continuous basis. Unit tests, functional tests, regression tests, performance tests, etc.

Mobile 52

Mobile Cloud Testing Testing Tools 52

Dynatrace

MARCH 5, 2021

An example here is if you report the CPU usage of a SNMP network device through your Telegraf agent, and you want to receive an alert whenever the CPU usage reaches a critical level or finally when the device is gone, but no measurements are coming.

Metrics 208

Metrics Network Monitoring Infrastructure 208

Dynatrace

JUNE 15, 2023

If your app runs in a public cloud, such as Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP), the provider secures the infrastructure, while you’re responsible for security measures within applications and configurations. These alerts tend to slow down development.

Cloud 171

Cloud Open Source Architecture Monitoring 171

Dynatrace

AUGUST 18, 2022

In some cases, this meant testing my scripted methodology hundreds of times before deploying to production in order to catch every nuance and condition that could affect the result. Everything I did was automation. Once Dynatrace performs the automated remediation action, it doesn’t stop there.

Games 288

Games Monitoring Infrastructure DevOps 288

Dynatrace

APRIL 26, 2022

Gartner estimates that by 2025, 70% of digital business initiatives will require infrastructure and operations (I&O) leaders to include digital experience metrics in their business reporting. With DEM solutions, organizations can operate over on-premise network infrastructure or private or public cloud SaaS or IaaS offerings.

Monitoring 196

Monitoring Social Media IoT Metrics 196

Testsigma

JANUARY 18, 2021

Does this mean that enough effort was not spent in the automation testing process? The possibility is that the web developer and test automation engineer did not do thorough cross browser testing! However, choosing a scalable, secure, and reliable cross browser testing infrastructure should not be overlooked in the process.

Testing 55

Testing Operating System Website Internet 55

Dynatrace

APRIL 16, 2020

With most employees now working from home, and the demand on e-commerce platforms hits an all-time high, applications and infrastructure are under intense pressure with new usage patterns that have never been planned for or tested against. Government agencies coping with COVID-19.

Traffic 197

Traffic Government Database Infrastructure 197

The Netflix TechBlog

AUGUST 10, 2020

In addition, with 193M members and counting, there is a huge diversity in the networks that stream our content as well as in our members’ bandwidth. It is, thus, imperative that we are sensible in the use of the network and of the bandwidth we require. Yet, given its wide support, our H.264/AVC

Innovation 239

Innovation Traffic Network Efficiency 239

Testsigma

JANUARY 29, 2021

Mobile-first design should be accompanied with mobile website testing for delivering a flawless web experience to your target audience. Different screen resolutions and viewport sizes add another layer of complexity to mobile website testing. Why should you focus on Mobile Website Testing? Mobile-first indexing.

Website 98

Website Mobile Testing Strategy 98

Dynatrace

OCTOBER 4, 2023

There are many real-world uses for process automation, including the ability to automatically provision infrastructure—critical for organizations that use cloud architecture—as well as closed-loop remediation capability and the ability to enable teams to collaborate and address problems through targeted notification.

Artificial Intelligence 173

Artificial Intelligence Innovation Strategy Efficiency 173

Dynatrace

JANUARY 20, 2020

Thus, performance incidents can be resolved more quickly, and future SAP infrastructure and system sizing can be aligned with real needs. Was it the server, the network, or the database that caused the degraded response time? You can test-drive both extensions today! Understand the root cause of the degraded GUI response time.

Monitoring 152

Monitoring Performance Infrastructure Network 152

Scalegrid

APRIL 16, 2020

Are you comfortable setting up your own cloud infrastructure through AWS or Azure? A vast majority of the features are the same, outside of these advanced features available through the BYOC model: Virtual Private Clouds / Virtual Networks. Do you want to deploy in an AWS VPC or Azure VNET? Expert Tip. Security Groups.

Cloud 242

Cloud Azure AWS Database 242