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.

Cache 251

Cache Latency Airlines Logistics 251

Scalegrid

FEBRUARY 8, 2024

Key Takeaways Distributed storage systems benefit organizations by enhancing data availability, fault tolerance, and system scalability, leading to cost savings from reduced hardware needs, energy consumption, and personnel. Variations within these storage systems are called distributed file systems.

Storage 130

Storage Systems Big Data Azure 130

Smashing Magazine

JANUARY 15, 2019

In 2013, A List Apart published Sustainable Web Design by James Christie. This includes the work done by the server, the client and the intermediary communications networks that transmit data between the two. All of the major browsers provide developer tools that allow us to measure network activity. Sustainable Web Design.

Website Performance 73

Website Performance Website Energy Performance 73

Adrian Cockcroft

JUNE 21, 2022

The early days at Sun Cambridge were special, I absorbed a lot about networking and the technical side of the role from my fellow systems engineer Martin Baines, and we were driving all over the region in cool company cars (I had a Citroen BX 16V) selling a really hot product.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Dotcom-Montior

NOVEMBER 27, 2018

Today’s applications are built on multiple technologies, relying on vast networks of third-party providers and CDN’s. Additionally, end users can access your site or applications from anywhere in the world using different browsers, operating systems, and mobile devices, all with varying connection speeds.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

Dynatrace

JUNE 25, 2020

This means that Dynatrace continues full operation when a majority of nodes are up and a maximum of two nodes are down at a time. The network latency between cluster nodes should be around 10 ms or less. Our Premium High Availability comes with the following features: Active-active deployment model for optimum hardware utilization.

Availability 241

Availability Hardware Latency Traffic 241

Dynatrace

DECEMBER 8, 2021

When an application runs on a single large computing element, a single operating system can monitor every aspect of the system. Modern operating systems provide capabilities to observe and report various metrics about the applications running. Just as the code is monolithic, so is the logging.

Cloud 220

Cloud Serverless Hardware Operating System 220

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. Without data backup mechanisms, there can be data loss or system downtime.

Database 85

Database Hardware Open Source Strategy 85

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. Operating System (OS) settings Swappiness Swappiness is a Linux kernel setting that influences the behavior of the Virtual Memory manager when it needs to allocate a swap, ranging from 0-100.

Best Practices 52

Best Practices Design Tuning Database 52

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., Microservices fundamentally change a lot of assumptions current cloud systems are designed with, and present both opportunities and challenges when optimizing for quality of service (QoS) and utilization.

Open Source 61

Open Source Hardware Benchmarking Systems 61

SQL Server According to Bob

JULY 13, 2016

desktop machine (I won’t tell you the hardware details. And the Operating System environment for Windows Server has become more robust but has introduced more features and complexity. So the initial time to run this all depends on your network speed. Go install it”. So I proceeded to install SQL Server 4.20

Servers 40

Servers Media Engineering Virtualization 40

All Things Distributed

MARCH 11, 2016

Failures are a given and everything will eventually fail over time: from routers to hard disks, from operating systems to memory units corrupting TCP packets, from transient errors to permanent failures. This is a given, whether you are using the highest quality hardware or lowest cost components. Primitives not frameworks.

AWS 144

AWS Hardware Retail Virtualization 144

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. From operating systems to versions to hardware specs, mobile devices stand unique even after being billions in number.

Mobile 77

Mobile Testing Operating System Hardware 77

The Morning Paper

DECEMBER 8, 2019

Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. If the kernel isn’t involved in the persistent data access path, then we need a hardware solution to enforce access control.

Hardware 56

Hardware Programming Media Storage 56

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. These devices ran on a diverse range of OS versions, screen resolutions, and network types. Once you have chosen your target devices, consider the architectural aspect of your hardware. Device Infrastructure.

Mobile 52

Mobile Testing Hardware DevOps 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. virtio is used for network and block devices.

Serverless 101

Serverless Virtualization Lambda AWS 101

HammerDB

FEBRUARY 25, 2021

As we have seen databases are designed to handle multiple database sessions at the same time. For simplicity, we do not include networking or transaction management middleware in this discussion because although important in the real world they do not affect the key concepts. Basic Benchmarking Concepts. Why Tcl as a Glue Language.

Programming 67

Programming Benchmarking Virtualization C++ 67

SQL Performance

DECEMBER 17, 2019

This removes the burden of purchasing and maintaining your hardware, storage and networking infrastructure, while still giving you a very familiar experience with Windows and SQL Server itself. You will still have to maintain your operating system, SQL Server and databases just like you would in an on-premises scenario.

Azure 72

Azure Virtualization Servers Storage 72

Alex Russell

SEPTEMBER 20, 2020

Pre-publication gates were valuable when better answers weren't available, but commentators should update their priors to account for hardware and software progress of the past 13 years. Fast forward a decade, and both the software and hardware situations have changed dramatically. Don't like the consequences?

Hardware 64

Hardware Mobile Programming Java 64

Smashing Magazine

FEBRUARY 5, 2019

Although modern iOS hardware is powerful enough to handle many intensive and complex tasks, the device could still feel unresponsive if you are not careful about how your app performs. Don’t design an entry experience that looks like a splash screen or an "About" window. iOS Performance Tricks To Make Your App Feel More Performant.

Performance 77

Performance Energy Operating System Code 77

ACM Sigarch

AUGUST 20, 2018

We are used to instances of software running on different computer systems as long as some basic requirements are met (e.g., same instruction set architecture, same operating system, etc.). Similarly, we expect that most computer systems can read (and write) data that is stored in some memory.

Hardware 47

Hardware Operating System Architecture Software 47

SQL Server According to Bob

JANUARY 11, 2020

Most manufacturers' implementations immediately flush pending writes to physical disk during the restart operations. Example 1: ​​ Hardware failure (CPU board) Battery backup on the caching controller maintained the data. Important Always consult with your hardware manufacturer for proper stable media strategies.

Servers 40

Servers Cache Media Hardware 40

Testsigma

FEBRUARY 6, 2020

Documents like requirements documents, design documents, code are reviewed and review comments are provided at early stages of Software Lifecycle. The internal structure and design of the code are known to the user; hence all the logical paths are tested under White Box testing. ” In Static Testing, code is not executed.

Software 69

Software Software Testing Scalability 69

Adrian Cockcroft

NOVEMBER 11, 2019

Hence, one way to reduce risk is to make systems more observable. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. A learning organization, disaster recovery testing, game days, and chaos engineering tools are all important components of a continuously resilient system.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

Hence, one way to reduce risk is to make systems more observable. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. A learning organization, disaster recovery testing, game days, and chaos engineering tools are all important components of a continuously resilient system.

Latency 53

Latency Engineering Systems Hardware 53

SQL Server According to Bob

JANUARY 11, 2020

​​ With new ​​ innovations ​​ come ​​ new terms, designs, ​​ and ​​ algorithms. This is different from ​​ the reference count design ​​ that was ​​ used in SQL Server 7.0 and ​​ 2000.

Servers 40

Servers Cache Database Media 40

ACM Sigarch

NOVEMBER 1, 2019

This blog post gives a glimpse of the computer systems research papers presented at the USENIX Annual Technical Conference (ATC) 2019, with an emphasis on systems that use new hardware architectures. USENIX ATC is a top-tier venue with a broad range of systems research papers from both industry and academia.

Architecture 12

Architecture Hardware Cache Storage 12

Smashing Magazine

JANUARY 7, 2019

Performance isn’t just a technical concern: it matters, and when baking it into the workflow, design decisions have to be informed by their performance implications. Without a strong alignment between dev/design and business/marketing teams, performance isn’t going to sustain long-term. 150ms RTT, 1.5 Mbps down, 0.7

Performance 104

Performance Cache Metrics Network 104

High Scalability

NOVEMBER 25, 2019

To help our customers manage ongoing data explosion, we have designed many of the core components over the last few years. To add elasticity, reliability and durability, these data centers are connected to Google Cloud platform using high speed, secure Google Interconnect network. How much upfront design should you do?

Architecture 52

Architecture Cache Azure Storage 52