The Morning Paper

MARCH 15, 2020

Before designing a better system for detecting partial failures, the authors set about understanding their nature and causes through a study of five software systems (ZooKeeper, Cassandra, HDFS, Apache, and Mesos). Characterising partial failures. Developers can also explicitly annotate an operation as @vulnerable.

Systems 98

Systems Software Software Programming 98

Smashing Magazine

JULY 22, 2021

You can see that in the workday I’ve marked the dark blue as ‘getting tasks done’, which represented product design for my case. Exercise/outdoors. Networking. Design and development. Large preview ). Next is meetings, and lastly is working on presentations. Completing actual work. Creating presentations. Cooking/Eating.

Games 126

Games Availability Software Software 126

Rigor

NOVEMBER 22, 2019

According to Tim Kadlec : A performance budget is a clearly defined limit on one or more performance metrics that the team agrees not to exceed and that is used to guide design and development. They create a good starting point to talk about a full website or individual page or section from a performance and design perspective.

Performance 45

Performance Metrics Website Speed 45

Speed Curve

DECEMBER 10, 2017

Network metrics have been around for decades, but rendering metrics are newer. The gating factor in web performance ten years ago was network. Hopefully you went through the exercise of picking which rendering metric best corresponds to what you feel is a "good UX". Speed Index. Start Render. Time to First Interactive.

Metrics 69

Metrics Website Speed Monitoring 69

Smashing Magazine

AUGUST 9, 2021

Smashing Podcast Episode 41 With Eva PenzeyMoog: Designing For Safety. Smashing Podcast Episode 41 With Eva PenzeyMoog: Designing For Safety. In this episode, we’re talking about designing for safety. What does it mean to consider vulnerable users in our designs? Design for Safety from A Book Apart. Drew McLellan.

Design 98

Design Education Network Google 98

Dynatrace

MAY 15, 2020

When designing network segmentation programs that can help restrict lateral movement of bad actors across your infrastructure, understanding the design and flows of critical applications, whether on premise, in the cloud or containers is essential. Challenge: Monitoring processes for anomalous behavior.

Government 218

Government DevOps Infrastructure Network 218

CSS Wizardry

NOVEMBER 3, 2020

The whole point of the exercise that follows is to allow me to move quickly, spotting patterns from afar, and not having to do any slow or meticulous work yet. Of course, it’s a little more complex than that, but for this exercise it’s an incredibly reliable proxy. This is basically how many render blocking resources each page has.

Speed 292

Speed Ecommerce Metrics Analytics 292

Smashing Magazine

AUGUST 19, 2021

Ethics are an important part of human-computer interaction because they keep people at the heart of the design process. As UX practitioners, we know empathy is an important part of the design process. Interaction Design Foundation. How To Build An Ethical User Research Practice At Any Organization. Devin Harold.

Code 137

Code Design Education Government 137

Dynatrace

APRIL 21, 2022

The Azure Well-Architected Framework is a set of guiding tenets organizations can use to evaluate architecture and implement designs that will scale over time. Using a data-driven approach to size Azure resources, Dynatrace OneAgent captures host metrics out-of-the-box to assess CPU, memory, and network utilization on a VM host.

Azure 181

Azure Monitoring Virtualization Metrics 181

The Netflix TechBlog

DECEMBER 23, 2020

In addition to the default Docker namespaces (mount, network, UTS, IPC, and PID), we employ user namespaces for added layers of isolation. This, in turn, allows processes to exercise certain privileges without having any privileges in the init user namespace.

Media 286

Media Metrics Systems Processing 286

Percona

DECEMBER 5, 2023

Certainly, you can take advantage of this when you work with a large data set, and the initial copy could lead to long timeframes or network saturation. The scenario Service considerations In this exercise, we wanted to perform a major version upgrade from PostgreSQL v12.16 to PostgreSQL v15.4.

Database 76

Database Traffic C++ Servers 76

Percona

AUGUST 30, 2023

This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. For example, the network port at which PostgreSQL listens cannot be changed at the individual database level. This is the level at which decisions on whether to use data_checksums need to be taken.

Database 102

Database Servers Open Source Tuning 102

CSS - Tricks

APRIL 1, 2021

With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise. Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools. In DevTools, the Network inspector helps us see what the first webpage is doing too.

Cache 92

Cache Social Media Media Website 92

Testsigma

JANUARY 6, 2022

Today, when people are working from home, they are using personal or company-provided laptops to connect to the office network. Mostly we are using a virtual desktop to stay connected to the organization’s network. Any technical glitch such as a network bandwidth issue can impact the output of the whole organization.

Testing 52

Testing Internet Internet Testing Tools 52

Dynatrace

JUNE 1, 2021

However, with today’s highly connected digital world, monitoring use cases expand to the services, processes, hosts, logs, networks, and of course, end-users that access these applications — including a company’s customers and employees. Mobile apps, websites, and business applications are typical use cases for monitoring.

Monitoring 148

Monitoring Mobile Social Media Artificial Intelligence 148

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 52

Latency Engineering Systems Hardware 52

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. Traditionally one of the major costs when moving data in and out of memory (be it to persistent media or over the network) is serialisation.

Hardware 56

Hardware Programming Media Storage 56

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 53

Latency Engineering Systems Hardware 53

All Things Distributed

OCTOBER 2, 2017

With these requirements in mind, and a willingness to question the status quo, a small group of distributed systems experts came together and designed a horizontally scalable distributed database that would scale out for both reads and writes to meet the long-term needs of our business. This was the genesis of the Amazon Dynamo database.

Internet 128

Internet Internet AWS Performance 128

John McCalpin

AUGUST 1, 2018

This is an intellectually challenging and labor-intensive exercise, requiring detailed review of the published details of each of the components of the system, and usually requiring significant “detective work” (using customized microbenchmarks, hardware performance counter analysis, and creative thinking) to fill in the gaps.

Hardware 40

Hardware Transportation Performance Latency 40

The Morning Paper

JULY 4, 2019

This is a fascinating paper from members of Netflix’s Resilience Engineering team describing their chaos engineering initiatives: automated controlled experiments designed to verify hypotheses about how the system should behave under gray failure conditions, and to probe for and flush out any weaknesses. Safeguards.

Latency 77

Latency Engineering Metrics Traffic 77

The Morning Paper

APRIL 16, 2019

The networking model is asynchronous (allowing out of order, dropped, delayed, and duplicated messages), the failure model is crash-stop. We would like students to consider the performance characteristics of their systems, and our tests check that their designs attain reasonable run-time performance. Testing and model checking.

Systems 43

Systems Efficiency Testing Strategy 43

Alex Russell

AUGUST 30, 2021

Large projects like browser engines also exercise governance through a hierarchy of "OWNER bits," which explicitly name engineers empowered to permit changes in a section of the codebase. Developers can provide feedback from using features and lobby other browsers to adopt (or re-design) them.

Engineering 98

Engineering Open Source Website Operating System 98

All Things Distributed

NOVEMBER 15, 2010

These trade-offs have even impacted the way the lowest level building blocks in our computer architectures have been designed. Configuring kernel execution is not a trivial exercise and requires GPU device specific knowledge. a Fast and Scalable NoSQL Database Service Designed for Internet Scale Applications. Recent Entries.

AWS 136

AWS Latency Programming Architecture 136

Alex Russell

SEPTEMBER 20, 2020

The nuances of careful security design are common casualties in FUD-slinging fights. 11] We designed web APIs to accommodate a diversity of views about exposing features, and developers guard against variable support already. Not draining other's bank accounts may be something of an exercise to the reader. ??.

Hardware 64

Hardware Mobile Programming Java 64

The Netflix TechBlog

MARCH 6, 2019

Video encoding is what MezzFS was originally designed for and remains one of its canonical use cases, so we’ll focus on video encoding to describe the problem that MezzFS solves. We parallelize rerun jobs with Titus , Netflix’s container management platform, which allows us to exercise many hundreds of replay files in minutes.

Media 214

Media Storage Processing Cache 214