Alex Podelko

APRIL 18, 2021

MongoDB has the most advanced continuous performance testing I know about. MongoDB shared a lot of information on how we do performance testing and even open sourced some parts of it. Continuous performance testing is built on the top of Evergreen. 34 (2020), Performance Testing with David Daly , is another good introduction.

Performance Testing 182

Performance Testing Performance Testing Education 182

Percona

NOVEMBER 1, 2023

Without going further into the reasons for such a need, I wanted to refresh this subject in terms of overhead related to running the command on production systems. A lot has changed since then, but many production systems alive today still run with affected versions. Let’s recap how the situation has evolved over the years.

Servers 95

Servers Database Cache C++ 95

DZone

AUGUST 31, 2020

Although it provides rich capabilities to simulate abnormal system conditions, it still only solves a fraction of the Chaos Engineering puzzle. This article describes how we use TiPocket , an automated testing framework to build a full Chaos Engineering testing loop for TiDB , our distributed database.

Testing 147

Testing Open Source Engineering Database 147

HammerDB

OCTOBER 23, 2023

HammerDB uses stored procedures to achieve maximum throughput when benchmarking your database. However, there can be a lack of understanding of the benefits that stored procedures bring or if you have a benchmarking tool or database that doesn’t support stored procedures, then you have nothing to compare against.

Benchmarking 62

Benchmarking Database Network C++ 62

Percona

JANUARY 25, 2023

Database administrators often need to identify inactive databases and users to save resources. This can be done using various methods to determine which databases and users are frequently accessed. We can save disk space and other resources by purging inactive databases and users.

Database 96

Database C++ Servers Open Source 96

DZone

JANUARY 23, 2021

If you need to dynamically trace Linux process system calls, you might first consider strace. According to a performance test conducted by Arnaldo Carvalho de Melo, a senior software engineer at Red Hat, the process traced using strace ran 173 times slower, which is disastrous for a production environment. The answer is YES.

Systems 166

Systems Performance Software Engineering Performance Testing 166

Dynatrace

JANUARY 16, 2023

As Kubernetes adoption increases and it continues to advance technologically, Kubernetes has emerged as the “operating system” of the cloud. Kubernetes is emerging as the “operating system” of the cloud. The strongest Kubernetes growth areas are security, databases, and CI/CD technologies. Kubernetes moved to the cloud in 2022.

Open Source 345

Open Source Java Operating System Programming 345

Percona

MAY 1, 2023

It has default settings for all of the database parameters. It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. The performance of a PostgreSQL database has a significant impact on the overall effectiveness of an application.

Tuning 52

Tuning Efficiency Database Performance 52

Dynatrace

JANUARY 31, 2024

GenAI is prone to erratic behavior due to unforeseen data scenarios or underlying system issues. The RAG process begins by summarizing and converting user prompts into queries that are sent to a search platform that uses semantic similarities to find relevant data in vector databases, semantic caches, or other online data sources.

Cache 206

Cache Azure Infrastructure Monitoring 206

Dynatrace

APRIL 30, 2021

As organizations develop more applications and microservices, they are discovering they also need to run more performance tests in the same amount of time or less to meet service-level objectives (SLOs) that fulfill service-level agreements (SLAs). How can organizations address this process bottleneck and run more tests in less time?

Engineering 202

Engineering Testing Performance Performance Testing 202

Testlodge

APRIL 14, 2021

A software tester’s work life includes making sure that systems that have been designed to achieve specific results behave exactly as they should. These systems are a combination of different hardware and software which have been configured to perform the desired task. What is Configuration Testing?

Testing 89

Testing Hardware Virtualization Operating System 89

The Morning Paper

DECEMBER 5, 2019

Benchmarking spreadsheet systems Rahman et al., They often freeze during computation, and are unable to import datasets well below the size limits posed by current spreadsheet systems. While a database is barely getting started at 20,000 rows, a spreadsheet could be hanging. Basic complexity testing.

Benchmarking 56

Benchmarking Systems Google Scalability 56

Scalegrid

JANUARY 20, 2020

Follower clusters are a ScaleGrid feature that allows you to keep two independent database systems (of the same type) in sync. This extra cluster, known as a follower cluster, can be leveraged for multiple use cases, including for analyzing, optimizing and testing your application performance for MongoDB , MySQL and PostgreSQL.

Analytics 185

Analytics Storage Database Systems 185

Testlodge

JULY 19, 2023

SOX compliance testing validates changes made to code and verifies adherence to internal controls. Testers are responsible for testing code changes to ensure accuracy. The overall intention of SOX testing is to protect stakeholders and other investors from corporate fraud. There are four major types of controls.

Testing 81

Testing Energy Programming Government 81

Testlodge

MARCH 21, 2023

What’s the difference between Black Box and White Box Testing? When looking at black box vs white box testing, the main difference between them is the type of product information the tester will access. Black box testing focuses on the requirements to ensure the system responds as expected, according to the documentation.

Testing 67

Testing Architecture Hardware Code 67

The Morning Paper

MARCH 15, 2020

Understanding, detecting and localizing partial failures in large system software , Lou et al., Partial failures ( gray failures ) occur when some but not all of the functionalities of a system are broken. Here are the key findings: Partial failures appear throughout the release history of each system, 54% within the last three years.

Systems 98

Systems Software Software Programming 98

SQL Performance

APRIL 15, 2020

SQL Server has always provided the ability to capture actual queries in an easily-consumable rowset format – first with legacy SQL Server Profiler, later via Extended Events, and now with a combination of those two concepts in Azure SQL Database. Unfortunately, my excitement was short lived for a couple of reasons.

Azure 96

Azure Database Tuning Network 96

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. These services are tailored to meet various business requirements.

Artificial Intelligence 147

Artificial Intelligence Cloud Scalability Analytics 147

Dynatrace

OCTOBER 10, 2023

Process Improvements (50%) The allocation for process improvements is devoted to automation and continuous improvement SREs help to ensure that systems are scalable, reliable, and efficient. A few avenues for elevating CI/CD pipelines are: Enhancing the extent of automated test coverage during the testing phase.

Engineering 229

Engineering DevOps Innovation Strategy 229

DZone

MARCH 5, 2017

It’s also not enough just to do more unit testing. Each component needs to be stress-tested and optimized before being integrated into the bigger system. Systems behave differently when they are put under load and connected with the rest of the infrastructure.

Testing 130

Testing Performance Infrastructure Database 130

Abhishek Tiwari

JULY 8, 2023

In today's digital landscape, where user experience is paramount, organizations must ensure their applications and systems are functioning optimally at all times. Traditional testing and monitoring practices have long been relied upon to achieve this goal.

Monitoring 52

Monitoring Testing Artificial Intelligence Traffic 52

Dynatrace

APRIL 10, 2023

” Uninterrupted testing and multicloud observability Cluster monitoring also helped the company avoid performance issues during the A/B testing it conducted to evaluate the user experience. Such testing is critical to identifying customer shopping patterns that inform decisions about application design and user experience. .

Cloud 173

Cloud Ecommerce Performance Retail 173

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

Testlodge

JUNE 17, 2020

What is End to End Testing? End to end testing is an important technique used to validate the flow of an application from start to finish. The main objective of this testing is to simulate user behavior and thoroughly test components to identify any integration issues. Why End to End Testing is Needed.

Testing 73

Testing Government Database Systems 73

Scalegrid

JANUARY 25, 2024

Redis® is an in-memory database that provides blazingly fast performance. This makes it a compelling alternative to disk-based databases when performance is a concern. Redis returns a big list of database metrics when you run the info command on the Redis shell. This blog post lists the important database metrics to monitor.

Metrics 130

Metrics Monitoring Latency Cache 130

Testsigma

DECEMBER 4, 2020

To ensure quality, mobile app testing is essential. In this blog, we will discuss a step-by-step mobile app testing checklist. This is where cross-platform testing comes into the picture. These may include screen resolution, orientation, different versions of operating systems, camera, motion sensor, etc.

Mobile 65

Mobile Testing Operating System Storage 65

Testlodge

JANUARY 19, 2022

ETL Testing is a process used to test the transformation of raw data fetched from a certain source, before authenticating it according to business rules to make sure the particular data is loaded to the data warehouse (or a target system). The Importance of ETL Testing. Types of ETL Testing. Phases in ETL Testing.

Testing 73

Testing Strategy Design Technology 73

Scalegrid

NOVEMBER 20, 2019

During this time, you are also likely to experience a degraded performance of queries as your system resources are busy in index-creation work as well. There will be a short duration (tens of seconds) during which you will lose connectivity to your database due to the failover, but this can be overcome by having application-level retries.

Best Practices 239

Best Practices Latency Tuning Database 239

Percona

NOVEMBER 2, 2023

MongoDB is a dynamic database system continually evolving to deliver optimized performance, robust security, and limitless scalability. Our new eBook, “ From Planning to Performance: MongoDB Upgrade Best Practices ,” guides you through the entire process to ensure your database’s long-term success.

Best Practices 86

Best Practices Hardware Tuning Scalability 86

Enprowess

OCTOBER 7, 2021

8 Functional Testing types. Quick Summary: In the most straightforward and simple words, functional testing tests various aspects of an application, website, or system to guarantee that it is correctly doing what it should be. What is Functional testing? What to test in functional testing?

Testing 52

Testing Software Software Systems 52

O'Reilly Software

JUNE 12, 2018

The benefits of modeling data as events as a mechanism to evolve our software systems. Data is all-important—vital for the continued success of our businesses—but has also been seen as a massive constraint in how we design and evolve our systems. For as long as we’ve been talking about microservices, we’ve been talking about data.

Database 72

Database Cache Architecture Latency 72

Dynatrace

OCTOBER 13, 2021

Vulnerability assessment is the process of identifying, quantifying, and prioritizing the cybersecurity vulnerabilities in a given IT system. The goal of an assessment is to locate weaknesses that can be exploited to compromise systems. That said, vulnerability databases such as CVE , help identify known vulnerabilities.

Infrastructure 172

Infrastructure Open Source Virtualization Operating System 172

Scalegrid

APRIL 16, 2020

Where you decide to host your cloud databases is a huge decision. But, if you’re considering leveraging a managed databases provider, you have another decision to make – are you able to host in your own cloud account or are you required to host through your managed service provider? Where to host your cloud database?

Cloud 242

Cloud Azure AWS Database 242

The Morning Paper

SEPTEMBER 14, 2020

Aligning superhuman AI with human behavior: chess as a model system , McIlroy-Young et al., we also have large databases of human games available though, we have a recognised method of assessing player skill levels (rating points). Leela engines at rating strengths of 800 to 3,200 are also tested on this task. KDD’20.

Systems 85

Systems Games Engineering Open Source 85

Percona

SEPTEMBER 26, 2023

As MySQL database administrators, we are well aware of the significance of implementing a primary key within a table. Primary keys play an indispensable role in sound database design by uniquely identifying individual rows and significantly enhancing data retrieval, manipulation, and overall system performance.

Database 99

Database Engineering Best Practices Open Source 99

Alex Podelko

OCTOBER 20, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. Cloud seriously impacts system architectures that has a lot of performance-related consequences. First, we have a shift to centrally managed systems.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

Dynatrace

AUGUST 18, 2022

Whether deployment of a new system, a new release, or a rolling patch update, I wanted it done consistently and successfully every time. 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.

Games 294

Games Monitoring Infrastructure DevOps 294