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 Hardware 213

Smashing Magazine

NOVEMBER 16, 2021

Meet Touch Design For Mobile Interfaces, A New Smashing Book By Steven Hoober. Meet Touch Design For Mobile Interfaces, A New Smashing Book By Steven Hoober. Touch Design for Mobile Interfaces presents and shares real information on hardware, people, interactions, and environments. Cover design by Espen Brunborg.

Mobile 87

Mobile Design Best Practices Website 87

Dynatrace

OCTOBER 2, 2023

Limits of a lift-and-shift approach A traditional lift-and-shift approach, where teams migrate a monolithic application directly onto hardware hosted in the cloud, may seem like the logical first step toward application transformation. remove the dependency on the monolith after all testing is successful. create a microservice; 2.

Architecture 231

Architecture Artificial Intelligence Cloud Open Source 231

The Morning Paper

NOVEMBER 15, 2020

With more nodes and more coordination comes more complexity, both in design and operation. So before matching, the IDS/IPS has to reconstruct a TCP bytestream in the face of packet fragmentation, loss, and out-of-order delivery – a process known as reassembly. Increasing the amount of work we can do on a single unit.

Servers 128

Servers Hardware Latency Design 128

Testsigma

APRIL 4, 2022

A common theme among most software testing organizations is their escalating interest in Test Automation. While test automation has grown in popularity, there are still many myths and biases surrounding it. Such myths can unknowingly create a self-limiting boundary and negatively impact the possibilities of test automation.

Testing 95

Testing Open Source IoT Programming 95

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. In addition to the disaster recovery site, this design includes an external layer of nodes.

Availability 111

Availability Database Open Source Hardware 111

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 225

Engineering Entertainment Cloud Infrastructure 225

Percona

APRIL 17, 2023

For example: UUID=f41e390f-835b-4223-a9bb-9b45984ddf8d / xfs rw,noatime,attr2,inode64,noquota 0 0 Unix ulimit settings Most UNIX-like operating systems, including Linux and macOS, provide ways to limit and control the usage of system resources such as threads, files, and network connections on a per-process and per-user basis.

Best Practices 52

Best Practices Design Tuning Database 52

Percona

AUGUST 30, 2023

In general terms, here are potential trouble spots: Hardware failure: Manufacturing defects, wear and tear, physical damage, and other factors can cause hardware to fail. heat) can damage hardware components and prompt data loss. Human mistakes: Incorrect configuration is an all-too-common cause of hardware and software failure.

Database 91

Database Hardware Open Source Strategy 91

Testlodge

JUNE 16, 2021

One such specialized technique is penetration testing, which aims to detect any loophole in the system through which an attacker can gain access and steal critical data, which ultimately causes businesses to suffer monetary losses and lose customers to competitors. An Introduction to Penetration Testing.

Testing 67

Testing Hardware Open Source Internet 67

Percona

OCTOBER 18, 2023

It’s a complex process involving various factors and meticulous planning. Today, we’ll be taking a deep dive into the intricacies of database migration, along with specific solutions to help make the process easier. In this section, we’ll outline the essential steps involved in migrating to open source databases.

Open Source 96

Open Source Database Hardware Strategy 96

ACM Sigarch

JULY 17, 2023

One such challenge has been the emergence of marginal defect-driven faults that are difficult to address solely using best practices in manufacturing test and screening. We then discuss defects observed, the role of test and design to address this problem, and identify research opportunities. Each fault has a root cause.

Energy 52

Energy Hardware Best Practices Architecture 52

Percona

MARCH 28, 2023

Journal It’s a process where every write operation gets written (appended) from Memory to a Journal file, AKA transaction log that exists on disk at a specific interval configured using “ journalCommitIntervalMs.” Although both the processes (involving disk) might look the same, they have different purposes.

Hardware 91

Hardware C++ Storage Cache 91

Testsigma

MAY 3, 2021

Web developers are moving their focus from desktop-first to mobile-first web design which further solidifies our understanding of how important this pocket device has become. What could be the best choice to cut down the costs and gain speed to move the pipeline faster than test automation? Variety of Device Settings.

Mobile 77

Mobile Testing Operating System Hardware 77

Dynatrace

OCTOBER 1, 2021

In these modern environments, every hardware, software, and cloud infrastructure component and every container, open-source tool, and microservice generates records of every activity. An advanced observability solution can also be used to automate more processes, increasing efficiency and innovation among Ops and Apps teams.

Metrics 363

Metrics Open Source Monitoring Infrastructure 363

Testsigma

JULY 25, 2020

Continuous Testing is the testing strategy to fast-track the testing required for achieving rapid software development using Agile and DevOps methodologies. What is Continuous Testing? Continuous Testing is the process of testing at all stages of software development – one after the other – without any human intervention.

Testing 55

Testing DevOps Performance Testing Infrastructure 55

Dynatrace

SEPTEMBER 30, 2021

Cloud migration is the process of transferring some or all your data, software, and operations to a cloud-based computing environment that offers unlimited scale and high availability. A key step in digital transformation is migrating from traditional on-prem IT processes to adopting cloud services. What is cloud migration?

Cloud 165

Cloud Traffic Best Practices Strategy 165

Testsigma

FEBRUARY 5, 2021

If you’re a developer, a web designer, or a QA manager, you would want to ensure that your product delivers as promised. Facebook’s mobile device testing lab at the Prineville Data Centre is equipped with Android and iOS devices that test Facebook applications and Instagram. The Need For Mobile Testing Lab.

Mobile 52

Mobile Testing Hardware DevOps 52

Percona

JUNE 12, 2023

Sure, you can get there with the right extensions and tools, but it can be a long, burdensome, and potentially expensive process. and package them in a design (blueprint) of a database infrastructure that’s fit to perform optimally — amid demanding conditions. Percona Operator for MongoDB Design Overview

Architecture 100

Architecture Availability Open Source Healthcare 100

Testsigma

FEBRUARY 6, 2020

According to IEEE Std 829-1998, Software Testing is defined as “the process of analyzing a software item to detect the differences between existing and required conditions (i.e. ” With the advent of new technologies and new software being released every day, software testing is gaining more strength and accolades.

Software 69

Software Software Testing Scalability 69

Percona

NOVEMBER 3, 2023

About the cluster Following a step-by-step process, the objective is to create a four-node cluster consisting of: PostgreSQL version 15 Citus extension (I’ll be using version 11, but there are newer ones available.) Steps Provisioning The first step is to provision the four nodes with both PostgreSQL and Citus.

Database 108

Database Benchmarking Latency C++ 108

Scalegrid

JANUARY 25, 2024

Effective management of memory stores with policies like LRU/LFU proactive monitoring of the replication process and advanced metrics such as cache hit ratio and persistence indicators are crucial for ensuring data integrity and optimizing Redis’s performance. offers the Software Watchdog specifically designed for this purpose.

Metrics 130

Metrics Monitoring Latency Cache 130

Smashing Magazine

OCTOBER 27, 2021

The eye-tracking methodology can be extremely valuable for usability tests since it records the journey without interfering with the users’ natural behavior. Imagine, for example, that you test a prototype but discover that users are not interacting with the interface how they are supposed to. Mariana Macedo. 2021-10-27T10:00:00+00:00.

Mobile 111

Mobile Website Hardware Social Media 111

Testsigma

JULY 3, 2021

If you’ve been performing on-premise testing in your organization, you know the rules already. But for the uninitiated, on-premise testing is a form of testing where testers perform tests on local machines, systems, or devices set up at an office. On-premise testing comes with a lot of responsibility.

Cloud 57

Cloud Testing Storage DevOps 57

Randon ASCII

OCTOBER 4, 2020

The short version is that calls to timeBeginPeriod from one process now affect other processes less than they used to, but there is still an effect. First, a bit of operating-system design context. The answer is hardware interrupts. Let’s imagine that Process A is sitting in a loop calling Sleep(1). That’s crazy!

Programming 145

Programming Games Hardware Operating System 145

Testlodge

MARCH 28, 2018

This is where recovery testing comes in. What is Recovery Testing? Recovery testing is when you force the failure of your software in order to verify that recovering from the failure is both possible and properly performed. The Importance of Recovery Testing. How is recovery testing conducted? Conclusion.

Testing 50

Testing Airlines Hardware Software 50

The Morning Paper

SEPTEMBER 27, 2020

The wikipedia page on floating point numbers describes a number of related accuracy problems including the difficulty of testing for equality. In day-to-day usage, beyond judicious use of ‘within’ for equality testing, I suspect most of us ignore the potential difficulties of floating point arithmetic even if we shouldn’t.

Benchmarking 101

Benchmarking Hardware Programming Code 101

Randon ASCII

SEPTEMBER 30, 2022

Modern software loves to use additional processes so I wasn’t surprised when the busiest process wasn’t SoundRec.exe , but the verbosely named “RuntimeBroker.exe <Microsoft.WindowsSoundRecorder>”. All of this testing was done on Windows 10, 21H2.

Software 130

Software Software Cache Hardware 130

Testsigma

JANUARY 30, 2021

About two decades ago, testing was only limited to the desktop. With the rapidly increasing use of smartphones and ease of access to the internet across the globe, testing has spread across vast platforms. The native and mobile web browser testing is being performed more and more compared to desktop testing.

Mobile 52

Mobile Testing Website Internet 52

Percona

JULY 7, 2023

Where a high availability design once worked well, it can no longer keep up with more complex requirements. The majority of SPOFs are a consequence of scale, where designs that were once adequate (excellent, even) no longer meet evolving, more complex requirements. Failover is essential to minimizing downtime.

Availability 85

Availability Open Source Architecture Database 85

Testsigma

FEBRUARY 12, 2021

Just a manual testing approach would not suffice for today’s wired devices and dynamic architectural applications of Industry 4.0. The way we now look at software engineering has revolutionized test automation, with QA teams adapting automation to expand test scope, increase efficiency and do more testing in less time.

Testing 54

Testing Testing Tools Software Engineering Efficiency 54

Testsigma

DECEMBER 28, 2019

During the entire SDLC phase, there are various kinds of testing performed at different stages. Each stage of testing has different objectives to fulfil. The testing phase starts with unit testing followed by integration testing, system testing, system integration testing, acceptance testing, and regression testing.

Testing 53

Testing Hardware Testing Tools Strategy 53

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. Its goal is to assign running processes to time slices of the CPU in a “fair” way. So why mess with it?

Cache 251

Cache Latency Airlines Logistics 251

Tech News Gather

APRIL 13, 2023

It should stand out from the crowd by including an intuitive design, usable features, and graphics for a wonderful experience. iOS, Android, and Windows devices have different user interfaces that require different designs for each platform, which poses a challenge for them.

Mobile 52

Mobile Development Hardware Internet 52

The Morning Paper

MARCH 1, 2020

The ideal isolation solution would have the following properties: Strong isolation (multiple functions on the same hardware, protected against privilege escalation, information disclosure, covert channels, and other risks). The design of Firecracker. Wherever possible Firecracker makes use of components already built into Linux (e.g.

Serverless 101

Serverless Virtualization Lambda AWS 101

HammerDB

JUNE 27, 2022

It enables the user to measure database performance and make comparative judgements about database hardware and software. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. HammerDB has graphical and command line interfaces for the Windows and Linux operating systems.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Testlodge

DECEMBER 4, 2017

Load testing is a form of non-functional testing that is carried out to understand the behaviour of an application under a specific user load. Why Load Testing? On that day, they realized the importance of testing for potential load on the server. Yes, loading testing is mighty important! Load Testing Parameters.

Testing 51

Testing Testing Tools Servers Network 51