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

The Netflix TechBlog

JUNE 1, 2023

To do this, we devised a novel way to simulate the projected traffic weeks ahead of launch by building upon the traffic migration framework described here. New content or national events may drive brief spikes, but, by and large, traffic is usually smoothly increasing or decreasing.

Traffic 349

Traffic Best Practices Systems Testing 349

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 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

DZone

MARCH 24, 2025

A sudden spike in traffic caused Lambda timeouts, API Gateway threw 5xx errors, and customers started tweeting, Why cant I check out?! The post-mortem revealed the harsh truth: wed never tested failure scenarios. Then, disaster struck. Our resilient serverless setup had no fallbacks, retries, or plans for chaos.

Lambda 147

Lambda Serverless AWS Engineering 147

DZone

DECEMBER 28, 2020

The system could work efficiently with a specific number of concurrent users; however, it may get dysfunctional with extra loads during peak traffic. Performances testing helps establish the scalability, stability, and speed of the software application. Confirming scalability, dependability, stability, and speed of the app is crucial.

Performance Testing 230

Performance Testing Testing Tools Testing Performance 230

DZone

MAY 31, 2022

A website needs to be constantly tested and optimized to be in line with Google's web and SEO guidelines. As a result, it has an advantage over others in terms of visibility, brand image, and driving traffic. This article will learn about web performance testing and how Core Web Vitals plays a crucial and strategic part in it.

Performance Testing 244

Performance Testing Testing Performance Website Performance 244

Dynatrace

OCTOBER 16, 2023

Synthetic testing simulates real-user behaviors within an application or service to pinpoint potential problems. Here’s a look at why this testing matters, how it works, and what companies need to get the most from this approach. What is synthetic testing? RUM, meanwhile, requires actual users.

Testing 246

Testing Best Practices Testing Tools Monitoring 246

DZone

JANUARY 18, 2021

In this circumstance, rigorous testing of the application and the website becomes crucial. Website test is a testing method that is implemented for testing the web apps hosted on the website. It includes examining the application’s interface, as well as other functionalities.

Testing Tools 223

Testing Tools Testing Website Traffic 223

Dynatrace

MARCH 25, 2025

White box testing The nicest thing about deploying UI changes to production is that you can immediately see the changes in action. You can see when a new version is deployed, test it to ensure everything works as expected, and youre done. Test data collection Accurate test data can mean life or death. Figure 3.

Benchmarking 147

Benchmarking Code Open Source Engineering 147

Scalegrid

MAY 2, 2019

It is also recommended that SSL connections be enabled to encrypt the client-database traffic. 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. 185:1 rs.stepDown@src/mongo/shell/utils.js:1305:12

Testing 55

Testing Network Database Servers 55

Dynatrace

APRIL 22, 2020

While most government agencies and commercial enterprises have digital services in place, the current volume of usage — including traffic to critical employment, health and retail/eCommerce services — has reached levels that many organizations have never seen before or tested against. So how do you know what to prepare for?

Traffic 285

Traffic Ecommerce Retail Government 285

Dynatrace

NOVEMBER 28, 2023

This step is crucial as this environment is used for the final validation and testing phase before the code is released into production. This can lead to a lack of insight into how the code will behave when exposed to heavy traffic. Furthermore, augmenting test coverage to mirror the scenarios encountered in production is imperative.

Traffic 279

Traffic Best Practices Strategy Engineering 279

The Netflix TechBlog

NOVEMBER 2, 2020

How viewers are able to watch their favorite show on Netflix while the infrastructure self-recovers from a system failure By Manuel Correa , Arthur Gonigberg , and Daniel West Getting stuck in traffic is one of the most frustrating experiences for drivers around the world. Logs and background requests are examples of this type of traffic.

Traffic 261

Traffic Metrics Infrastructure Architecture 261

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 280

Traffic Government Database Network 280

Dynatrace

AUGUST 8, 2024

These issues can arise from errors in the code, insufficient testing, or unforeseen interactions among software components. A poorly tested feature release leads to incompatibility issues, resulting in downtime for users. A poorly tested feature release leads to incompatibility issues, resulting in downtime for users.

Software 290

Software Software Infrastructure Network 290

CSS Wizardry

FEBRUARY 25, 2021

Google has a pretty tight grip on the tech industry: it makes by far the most popular browser with the best DevTools, and the most popular search engine, which means that web developers spend most of their time in Chrome, most of their visitors are in Chrome, and a lot of their search traffic will be coming from Google. Why This Is a Problem.

Network 286

Network Mobile Performance Traffic 286

Dynatrace

MAY 21, 2021

This becomes even more challenging when the application receives heavy traffic, because a single microservice might become overwhelmed if it receives too many requests too quickly. The Envoy proxies also collect and report telemetry on all traffic among the services in the mesh. Why do you need a service mesh?

Traffic 279

Traffic DevOps Infrastructure Network 279

Dynatrace

SEPTEMBER 28, 2021

Two important ways to improve this metric are to implement quality assurance testing throughout multiple development environments and to automate testing and DevOps processes. A change failure rate above 40% can indicate poor testing procedures, which means teams will need to make more changes than necessary, eroding efficiency.

DevOps 246

DevOps Metrics Traffic Efficiency 246

The Netflix TechBlog

NOVEMBER 9, 2022

A quick canary test was free of errors and showed lower latency, which is expected given that our standard canary setup routes an equal amount of traffic to both the baseline running on 4xl and the canary on 12xl. What’s worse, average latency degraded by more than 50%, with both CPU and latency patterns becoming more “choppy.”

Hardware 363

Hardware Cache Performance Latency 363

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. And the last thing you want to do with synthetic is introduce false positives (the bane of all synthetic testing) into the system, and yet this was happening too often.

Cloud 203

Cloud Hardware Testing Logistics 203

Dynatrace

FEBRUARY 21, 2024

Quality gates after load/performance testing Teams can use quality gates to evaluate performance metrics. Before a new version of the application is deployed, the software is subject to a series of load tests that evaluate capacity and performance under a series of simulated traffic and application demands.

Speed 264

Speed Software Software Latency 264

Dynatrace

JUNE 15, 2021

This number was so low because the automatic traffic redirect was so fast it kept the impact so low. Those tests get executed from two locations (Paris and London) hosted by different cloud vendors (Azure & AWS). As a general best practice, Synthetic Tests are great to validate your core use cases are always working as expected.

AWS 246

AWS Traffic Architecture Azure 246

Dynatrace

MAY 17, 2023

Validation tasks are then extended left to cover performance testing and release validation in a pre-production environment. While the first guardian validates the traffic, the second guardian checks the business transactions generated during the observation period. The functionality is implemented via an automated workflow.

DevOps 246

DevOps Traffic Latency Best Practices 246

Dynatrace

JUNE 1, 2023

Traffic This SLO measures the amount of traffic or workload an application receives, either in terms of requests per second or data transfer rate. The traffic SLO targets the website’s ability to handle a high volume of transactional activity during periods of high demand. The Apdex score of 0.85

Latency 245

Latency Website Traffic DevOps 245

DZone

JULY 18, 2023

They cannot skip testing a release for the sake of adhering to continuous delivery practices, can they? In canary deployments, the new version, called canary, is tested with limited live traffic at first. It makes sense for DevOps engineers and architects to perform canary deployments in their CI/CD workflows.

Virtualization 230

Virtualization Traffic DevOps Engineering 230

Dynatrace

SEPTEMBER 29, 2021

The time and effort saved with testing and deployment are a game-changer for DevOps. This opens the door to auto-scalable applications, which effortlessly matches the demands of rapidly growing and varying user traffic. Containers can be replicated or deleted on the fly to meet varying end-user traffic. What is Docker?

Open Source 334

Open Source DevOps Traffic Cloud 334

Dynatrace

APRIL 5, 2024

When the SLO status converges to an optimal value of 100%, and there’s substantial traffic (calls/min), BurnRate becomes more relevant for anomaly detection. Error budget burn rate = Error Rate / (1 – Target) Best practices in SLO configuration To detect if an entity is a good candidate for strong SLO, test your SLO.

Efficiency 264

Efficiency Traffic Tuning Metrics 264

Dynatrace

MARCH 31, 2020

By investigating these questions, we distilled these two pain points: Following definition of application detection rules, some users don’t see traffic from the correct URLs in the corresponding Dynatrace applications (i.e., Gain control over the setup and testing of your application detection rules. Prerequisites.

Traffic 246

Traffic Mobile Monitoring Design 246

Dynatrace

JUNE 27, 2022

These development and testing practices ensure the performance of critical applications and resources to deliver loyalty-building user experiences. RUM, however, has some limitations, including the following: RUM requires traffic to be useful. For example, in e-commerce, you can validate and test checking out a shopping cart.

Best Practices 244

Best Practices Monitoring Wireless Traffic 244

DZone

JULY 19, 2023

Through load testing , businesses may determine how well their system performs under typical and predicted peak loads, ensuring that it can withstand the demands of actual usage. We will discuss the concept of load testing in this blog article, as well as its significance and practical application to ensure optimum performance.

Testing 130

Testing Traffic Systems Performance 130

DZone

OCTOBER 11, 2022

Improving testing by using real traffic from production ( Hacker News). Simpler UI Testing with CasperJS ( Architects Zone – Architectural Design Patterns & Best Practices). Google Analytics Becomes A Robust Testing Platform With Content Experiments API ( Google Analytics Blog). Hacker News).

Java 244

Java Best Practices Google Analytics 244

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

Dynatrace

SEPTEMBER 30, 2021

With cloud-based resources, teams can spin up infrastructure in seconds, begin testing immediately, scale up or down as needed, and easily eliminate resources that are no longer needed. In case of a spike in traffic, you can automatically spin up more resources, often in a matter of seconds. Improved performance and availability.

Cloud 241

Cloud Traffic Best Practices Strategy 241

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. 1) depicts the migration of traffic from fixed bitrates to DO encodes. The graphic below (Fig.

Open Source 260

Open Source Software Engineering Internet Internet 260

DZone

FEBRUARY 26, 2021

To ensure that users get high-performing software that works seamlessly under all load conditions, performance testing is necessary. This test helps to measure the speed, scalability, reliability, and stability of software under varying loads, thus it ensures stable performance. Today, let's learn more about this testing type in depth.

Performance Testing 127

Performance Testing Testing Performance Latency 127

Dynatrace

SEPTEMBER 26, 2022

Kubernetes can encounter problems while attempting to change an application’s state back to the intended state declared in Git—deployment mistakes, unpredictable traffic patterns, and resource miscalculations can make such state changes impossible. Inadequately tested container images deployed to production.

Storage 328

Storage Engineering Traffic Infrastructure 328