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

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

Scalegrid

DECEMBER 14, 2023

MongoDB drivers provide several options for Mongo clients to handle different network timeout errors that may occur during usage. For example, your payment history might be on one database cluster and your analytics records on another cluster. Knowing about these types of timeouts is essential for mastering MongoDB usage.

Java 130

Java Network Servers Database 130

Scalegrid

JANUARY 8, 2024

The partnership between AI and cloud computing brings about transformative trends like enhanced security through intelligent threat detection, real-time analytics, personalization, and the implementation of edge computing for quicker on-site decision-making. Key among these trends is the emphasis on security and intelligent analytics.

Artificial Intelligence 147

Artificial Intelligence Cloud Scalability Analytics 147

Testsigma

NOVEMBER 11, 2020

Having an effective test automation system is an absolute necessity in today’s agile software development environments. Automation works great, especially in case of smoke and regression tests and helps the QA teams to easily create and execute test cases that are complex in nature. Network Disconnections.

Testing 85

Testing Mobile Network Analytics 85

Smashing Magazine

DECEMBER 14, 2021

Modifying Headers In HTTP(s) Requests In UI Automation Testing. Modifying Headers In HTTP(s) Requests In UI Automation Testing. I was working on an application that opened the provided webpage and then give the user an option to modify elements, add events, add analytics, and so on. Nafees Nehar. 2021-12-14T10:30:00+00:00.

Testing 102

Testing Network Website Google 102

Dynatrace

APRIL 26, 2022

With DEM solutions, organizations can operate over on-premise network infrastructure or private or public cloud SaaS or IaaS offerings. STM generates traffic that replicates the typical path or behavior of a user on a network to measure performance for example, response times, availability, packet loss, latency, jitter, and other variables).

Monitoring 196

Monitoring Social Media IoT Metrics 196

The Netflix TechBlog

SEPTEMBER 18, 2020

Part of our series on who works in Analytics at Netflix?—?and Over the course of the four years it became clear that I enjoyed combining analytical skills with solving real world problems, so a PhD in Statistics was a natural next step. Photo from a team curling offsite? I then transitioned to a full industry role at Netflix.

Analytics 223

Analytics Education Innovation Engineering 223

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. Simplify error analytics. Users can take advantage of the platform features immediately. How does Dynatrace help? No manual configuration is necessary.

Lambda 218

Lambda AWS Serverless Latency 218

Testlodge

NOVEMBER 1, 2021

A central goal of software testing is to find issues, especially critical ones, before they cause a problem in production. This article discusses one measure to prevent these kinds of errors, known as destructive testing. What is Destructive Testing? Next, you test for.bmp and.png file types to make sure they are not accepted.

Systems 81

Systems Testing Software Software 81

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

Testsigma

FEBRUARY 13, 2021

Mobile applications, therefore, need to be built and tested with this difference in consideration. Following are a few things to consider when testing a mobile application : 1. Test on different screen sizes: Mobile devices are available in different screen sizes.

Mobile 52

Mobile Testing Network Analytics 52

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

Dynatrace

SEPTEMBER 30, 2021

AWS Certified Advanced Networking – Specialty: Very experienced networking professionals who are also proficient in AWS can benefit from getting this certification. Data analytics. Take a trial test at Linux Academy if it’s applicable to the cert you have in mind. The top AWS certification options.

AWS 202

AWS Best Practices Analytics Cloud 202

Tim Kadlec

JANUARY 12, 2021

Client-side A/B testing has been a performance loving developer’s worst friend for years. From a convenience perspective, running client-side tests is significantly easier to do than server-side testing. With server-side testing, you need developer resources to create different experiments.

Testing 137

Testing Google Traffic Servers 137

Dynatrace

JULY 11, 2023

While this example uses the metric dt.host.disk.free , you can choose any kind of capacity metric, such as host CPU, memory, or network load—you can even extract a metric value from a given log line. Note that you can use any time series data you can fetch from Grail using DQL within the forecast action.

Metrics 196

Metrics Games Analytics Network 196

Dynatrace

SEPTEMBER 13, 2023

This is where unified observability and Dynatrace Automations can help by leveraging causal AI and analytics to drive intelligent automation across your multicloud ecosystem. If so, test against the response time objective under the same Site Reliability Guardian.

AWS 240

AWS Efficiency Azure Cloud 240

Dynatrace

JUNE 15, 2023

If your application runs on servers you manage, either on-premises or on a private cloud, you’re responsible for securing the application as well as the operating system, network infrastructure, and physical hardware. This process can delay deployments or cause developers to skip security testing completely to meet project deadlines.

Cloud 171

Cloud Open Source Architecture Monitoring 171

Testsigma

DECEMBER 20, 2019

Software Testing has changed a lot! Earlier, manual testing ruled the world of testing, however, test automation increasingly became a reality in most organizations developing software. Testing continued to evolve, and it took advantage of technology innovations. Traditional test automation: What is it?

Artificial Intelligence 54

Artificial Intelligence Testing Healthcare Innovation 54

The Netflix TechBlog

OCTOBER 19, 2020

Reconstructing a streaming session was a tedious and time consuming process that involved tracing all interactions (requests) between the Netflix app, our Content Delivery Network (CDN), and backend microservices. The process started with manual pull of member account information that was part of the session. What’s next?

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Apica

NOVEMBER 15, 2019

With this shift in applications everywhere enterprises need to do their due diligence in performance testing complex modern applications at scale, often and at a lower cost to stay competitive. With this growth and added complexity, how are your legacy performance testing solutions keeping up?

Performance Testing 40

Performance Testing Testing Performance Games 40

Percona

JUNE 22, 2023

Number of slow queries recorded Select types, sorts, locks, and total questions against a database Command counters and handlers used by queries give an overall traffic summary Along with this, PMM also comes with Query Analytics giving much detailed information about queries getting executed.

Performance 104

Performance Monitoring Traffic Database 104

The Netflix TechBlog

MARCH 5, 2019

The main motivation is that while the devices themselves have a significant role in overall performance, our network and cloud infrastructure has a non-negligible impact on the responsiveness of devices. What will be the cost of rolling out the winning cell of an AB test to all users?

Infrastructure 182

Infrastructure Cloud Scalability AWS 182

Jos

JUNE 2, 2018

You will work hard on implementing features, collaborating with other teams (eg adding scripts for analytics, ads, retargeting, A/B test), setting up CI/CD, ensuring security, and making sure the project is usable and pleasant to the eye. And don’t forget about covering your back with tests.

Performance 237

Performance Speed Google Media 237

Dynatrace

NOVEMBER 15, 2021

Log monitoring, log analysis, and log analytics are more important than ever as organizations adopt more cloud-native technologies, containers, and microservices-based architectures. A log is a detailed, timestamped record of an event generated by an operating system, computing environment, application, server, or network device.

Analytics 202

Analytics Monitoring Artificial Intelligence DevOps 202

Dynatrace

FEBRUARY 25, 2020

We introduced Digital Business Analytics in part one as a way for our customers to tie business metrics to application performance and user experience, delivering unified insights into how these metrics influence business milestones and KPIs. A sample Digital Business Analytics dashboard. Dynatrace news.

Analytics 204

Analytics Metrics Best Practices Servers 204

Smashing Magazine

MAY 9, 2022

WebPageTest is one of the few web performance testing tools that actually tests a reload of the page using a primed HTTP Cache — most of the other tools just flag if your HTTP resources are not explicitly set to be cached. Back/Forward Cache Testing Tool. Additionally, the Back/Forward Cache is an in-memory cache.

Cache 92

Cache Games Performance Website 92

Percona

MAY 8, 2023

Quick access to other sections To simplify access to related sections under Monitoring, we’ve also added links to the Service Overview Dashboard and Query Analytics. It is recommended to use these dashboards for testing purposes only. You will find them in the Action section. Stay tuned!

Monitoring 77

Monitoring Database Metrics Tuning 77

CSS Wizardry

NOVEMBER 9, 2018

In this post I want to look at how CSS can prove to be a substantial bottleneck on the network (both in itself and for other resources) and how we can mitigate it, thus shortening the Critical Path and reducing our time to Start Render. Test, test, test. Test and measure. Employ Critical CSS.

Network 278

Network Performance Media Cache 278

Tim Kadlec

APRIL 12, 2020

Synthetic tests, even properly tuned to match device and network characteristics, only occasionally surfaced the issue. The RUM data made it clear as day (and it was easily reproduced in individual testing). Either would have made that process faster (and reduced the weight passed over the network as well).

Tuning 69

Tuning Cache Network Servers 69

Rigor

JANUARY 13, 2020

These are the bestsellers in the web performance field, including the good old Speed Up Your Site (2003) by Andy King; Steve Souders’ Even Faster Web Sites (2009) ; Ilya Grigorik’s High Performance Browser Networking (2013) ; Tammy Everts’ Time is Money (2016) ; and a handful of more recent publications. Time is Money.

Performance 75

Performance Social Media Website Website Performance 75

The Netflix TechBlog

JULY 30, 2019

This allows us to proactively push changes to the open source version while ensuring that the changes are fully functional and well-tested. Validations and Testing Dry runs, i.e Instead, we use a wrapper that pulls in the latest version of Conductor and adds Netflix infrastructure components and libraries before deployment.

Lambda 189

Lambda Media Open Source Metrics 189

Smashing Magazine

AUGUST 3, 2021

Lots can go wrong: a network request fails, a third-party library breaks, a JavaScript feature is unsupported (assuming JavaScript is even available), a CDN goes down, a user behaves unexpectedly (they double-click a submit button), the list goes on. The current implementation forces end-users to test our assumptions. Callum Hart.

Network 145

Network Engineering Availability Monitoring 145

The Morning Paper

DECEMBER 15, 2019

Here’s a small selection of my personal highlights from the term, in case you missed any of them (in the order in which they originally appeared on the blog): Procella: unifying and serving analytical data at YouTube. The secret-sharer: evaluating and testing unintended memorization in neural networks.

Analytics 40

Analytics Network Cloud Software 40

Jos

JUNE 2, 2018

You will work hard on implementing features, collaborating with other teams (eg adding scripts for analytics, ads, retargeting, A/B test), setting up CI/CD, ensuring security, and making sure the project is usable and pleasant to the eye. And don’t forget about covering your back with tests.

Performance 130

Performance Speed Google Media 130

Speed Curve

SEPTEMBER 11, 2016

And while there are already numerous conferences, videos, and evangelists for PWAs, there's less focus on testing and tracking the performance of PWAs. The trickiest part is testing the offline experience. Using the PWA offline script shown above, we can verify that Pokedex loads without a network. navigate [link].

Performance 61

Performance Network Mobile Cache 61

Rigor

FEBRUARY 2, 2018

Get Familiar with your Analytics. You should have a good sense already from your analytics about who is coming to your site and through what mediums. Desktop users and mobile users have different experiences due to variations in device type, browser, and network conditions. Are most of your users via desktop or mobile?

Speed 40

Speed Social Media Google Traffic 40