Spooling in Operating System

The Crazy Programmer

Similar is the concept of spooling which is used in our Operating Systems. To understand this concept thoroughly, we will first take a look at the basic operations that take place in our operating systems and subsequently, derive how the mechanism of spooling gives an edge to these operations.

Patterns of Distributed Systems

Martin Fowler

Over the last few months, my colleague Unmesh Joshi has been running workshops to teach developers about distributed systems design. In this work he's been delving into many open-source distributed systems and identifying patterns.

System 286
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Patterns of Distributed Systems

Martin Fowler

Over the last few months, my colleague Unmesh Joshi has been running workshops to teach developers about distributed systems design. In this work he's been delving into many open-source distributed systems and identifying patterns.

System 286

What is Multiprogramming Operating System

The Crazy Programmer

In the present computer, many parallel application processes are required to execute to run the system. This is now the function of the OS to control & control all the processes efficiently and effectively which is conversely the paramount function of the operating system.

The Pro’s Guide To Getting The Best ROI From Your New LMS

You need a Learning Management System when your courses and training programs need to be accessible online. Quickly build the perfect business case and easily determine which LMS will provide the best return on investment you need with this how-to eBook!

Distributed Systems Pattern: Quorum

Martin Fowler

Distributed systems may get partitioned, when the nodes in the cluster no longer talk to all the others. Unmesh explains that, because of this, we need a quorum of nodes within a partition to accept a change.

System 240

Context Switching in Operating System

The Crazy Programmer

This is because Context Switching in operating system helps store the context of a process, thread, or state, which can be accessed at the same point when reloaded. Context Switching in Operating System. When switching between multiple tasks takes place, a system does the following: .

Distributed Systems Pattern: State Watch

Martin Fowler

Clients are interested in changes to the specific values on the server. It's difficult for clients to structure their logic if they need to poll the server continuously to look for changes. If clients open too many connections to the server for watching changes, it can overwhelm the server. more….

System 266

Distributed Systems Pattern: Segmented Log

Martin Fowler

A single log file can grow and become a performance bottleneck while its read at the startup. Older logs are cleaned up periodically and doing cleanup operations on a single huge file is difficult to implement. A Segmented Log splits the logfile into smaller files.

System 275

Distributed Systems Pattern: Consistent Core

Martin Fowler

Unmesh has a few more of his Patterns of Distributed Systems ready to share with the world. In this one he looks at the problem of a large cluster, one that is too large to effectively maintain strong consistency, yet needs to maintain some data in a strongly consistent way.

System 206

eLearning demand is at an all-time high. Pick the right LMS!

The need for online learning is greater than ever having the right LMS is absolutely crucial. Quickly, easily, and cost-effectively decide which Learning Management System is right for you with this 12-step guide from LMS implementation experts.

Distributed Systems Pattern: Idempotent Receiver

Martin Fowler

Clients send requests to servers but might not get a response. It's impossible for clients to know if the response was lost or the server crashed before processing the request. To make sure that the request is processed, the client has to re-send the request.

System 206

Distributed Systems Pattern: Request Pipeline

Martin Fowler

Communicating between servers within a cluster using Single Socket Channel can cause performance issues if requests need to wait for responses for previous requests to be returned.

System 238

Distributed Systems Pattern: Single Socket Channel

Martin Fowler

We need to do this while keeping the cost of new connections low, so that opening new connections doesn't increase the system's latency.

System 252

Difference between Physical and Logical Address in Operating System

The Crazy Programmer

In this article, we will study the two types of addresses in the operating system – Physical and Logical addresses and take a look at the differences between the two of them. There are two main components of a computer system – the Control Unit (CU) and the Memory Unit (MU).

Does Your Company Need Help Solving These 4 Common eLearning Challenges?

If you want to know how to get ahead of the game and avoid the common mishaps in selling your eLearning courses, you’ve come to the right place! Lambda Solutions has identified the most common and costly challenges faced by eLearning providers today.

Looking at Systems to Enhance Outcomes

Agile Alliance

The post Looking at Systems to Enhance Outcomes first appeared on Agile Alliance. Process cycle time lead time pull pull system wip work in progress(This is Part 3 in a 5-part series.)

System 169

Distributed Systems Pattern: Write-Ahead Log

Martin Fowler

In the latest part of his collection of Patterns of Distributed Systems, Unmesh faces the problem of a server failing in the middle of a complex update.

System 245

Distributed Systems Pattern: Leader and Followers

Martin Fowler

In a distributed system, it's often best to not make all the nodes equal. Unmesh shows how a leader can simplify coordination across a cluster, and how choosing that leader is often tricky.

System 236

System Configuration

DevOps.com

The post System Configuration appeared first on DevOps.com. Blogs ROELBOB CRD docker humor Istio kubernetes satire

Schema Evolution Patterns

Speaker: Alex Rasmussen, CEO, Bits on Disk

If you want to make your development team squirm, ask them about database schema changes or API versioning. Most development teams struggle with changing database schemas and updating API versions without breaking existing code. Alex Rasmussen is an expert in helping teams through these struggles. His talk will examine database schema changes and API versioning as two instances of schema evolution: how your systems respond when the structure of your structured data changes.

Distributed Systems Pattern: Singular Update Queue

Martin Fowler

But if the tasks being performed are time consuming, like writing to a file, blocking all the other calling threads until the task is completed can have severe impact on overall system throughput and latency.

System 224

Building Design Systems with CSS Variables

Gorilla Logic

For organizations that have to design for multiple platforms, establishing a set of design standards and repeatable components (what we call Design Systems) is becoming increasingly important. What is a Design System? Creating a Design System using CSS Variables.

Distributed Systems Pattern: Low-Water Mark

Martin Fowler

The write ahead log maintains every update to persistent store. It can grow indefinitely over time. Segmented Log allows dealing with smaller files at a time, but total disk storage can grow indefinitely if not checked.

System 214

Distributed Systems Pattern: High-Water Mark

Martin Fowler

Unmesh adds High-Water Mark to his collection of patterns. The high-water mark is an index into the log file that records the last log entry that is known to have successfully replicated to a Quorum of followers. The leader also passes on the high-water mark to its followers during its replication. All servers in the cluster should only transmit data to clients that reflects updates that are below the high-water mark. more…. skip-home-page

System 215

Trusted AI 102: A Guide to Building Fair and Unbiased AI Systems

The risk of bias in artificial intelligence (AI) has been the source of concern and debate. High-profile examples demonstrate the reality that AI is not a default “neutral” technology and can come to reflect or exacerbate bias encoded in human data.

Article: The Flow System: Leadership for Solving Complex Problems

InfoQ Articles

The Flow System elevates Lean Thinking in an age of complexity by combining complexity thinking, distributed leadership, and team science into the Triple Helix of Flow, which organizations can use to become more innovative, adaptive, and resilient.

AoAD2 Practice: Evolutionary System Architecture

James Shore

Evolutionary System Architecture. What about your system architecture? By system architecture, I mean all the components that make up your deployed system. When you do, you get evolutionary system architecture. Large systems have manageable architectures.

What is the Function of the Kernel of an Operating System?

The Crazy Programmer

Operating System (OS) is a platform that allows a user to interact with the computer hardware. A kernel is a structure over which an operating system handles all the fundamental processes and resources which are required during the boot sequence. Operating System

Systems Thinking, Episode #2: Complex Adaptive Systems

Scrum.org

In my previous 2 episodes of this series on Systems Thinking, I elaborated on what systems Thinking is and on the Wicked Problems Systems Thinking is trying to solve. In this episode, I want to explore Complex Adaptive Systems (CAS). Complex Adaptive Systems.

System 137

Humility in AI: Building Trustworthy and Ethical AI Systems

AI is becoming ubiquitous. More and more critical decisions are automated through machine learning models, determining the future of a business or making life-altering decisions for real people. The number of critical touch points is growing exponentially with the adoption of AI. In this ebook, we explore the concept of humility in AI systems and how it can be applied to existing solutions to ensure their trustworthiness, ethicality, and reliability in a fast-changing world.

Five Tips For Creating Design Systems

DevOps.com

Design systems were all the rage half a decade ago, with an explosion of open source resources made public by Google, Salesforce and Shopify, for example. The post Five Tips For Creating Design Systems appeared first on DevOps.com.

Thrashing in Operating System (OS)

The Crazy Programmer

When a program need space larger than RAM or it need space when RAM is full, Operating System will try to allocate space from secondary memory and behaves like it has that much amount of memory by serving to that program. Whenever a page fault happens, operating system will try to fetch that page from secondary memory and try to swap it with one of the page in RAM. The post Thrashing in Operating System (OS) appeared first on The Crazy Programmer. Operating System

Cisco Systems pulls back from smart city push

CTOvision

Cisco Systems Inc. News Cisco Cisco Systems Incis pulling the plug on a flagship effort to help digitize the modern city, the latest example of a big tech company struggling to enter a new […].

Session-based Recommender Systems

Cloudera

Recommendation systems have become a cornerstone of modern life, spanning sectors that include online retail, music and video streaming, and even content publishing. The post Session-based Recommender Systems appeared first on Cloudera Blog.

How Product Managers Can Learn to Love Reporting

Speaker: Eric Feinstein, Professional Services Manager, Looker

He will use the example of a product manager of a learning management software system and how she would go through the process of defining reporting for users of the product.

Systems Thinking in Organizational Coaching

Scrum.org

This is quite a long read which you can download as the whitepaper "Systems Thinking in Organizational Coaching". In his book “Thinking, Fast and Slow”, Daniel Kahneman writes about the two types of systems: . System 1 works automatically and quickly.

COVID-19 and Complex Systems

O'Reilly Media - Ideas

In various mailing lists about the COVID-19 pandemic, I’ve seen several discussions of “complex systems theory” as, possibly, a way to understand how the pandemic is playing out in different locations. The argument is that some systems are intrinsically difficult to model.

Editor's Soapbox: On Systemic Debt

The Daily WTF

The application had a complex sorting/paging system designed to prevent fetching more than one page of data at a time for performance reasons. They ruled the system. They had a lot of power over this system, and this was a system handling millions of dollars.

System 114

Types of Operating System

The Crazy Programmer

An operating system is the basic mechanism behind the working of the computer systems and mobile devices and so, understanding the operating system becomes very important from a user’s perspective. The various types of Operating systems are as follows: Types of Operating System. Batch Operating System. Since, it works by grouping multiple jobs into lesser number of batches, managing a large amount of work becomes easy in a batch operating system.

Product Transformation: Adapting Your Solutions for Cloud Models

Speaker: Ahmad Jubran, Cloud Product Innovation Consultant

In order to maintain a competitive advantage, CTOs and product managers are shifting their products to the cloud. Many do this by simply replicating their current architectures in the cloud. Those previous architectures, which were optimized for transactional systems, aren't well-suited for the new age of AI. Whether you're a seasoned CTO or an industry trailblazer, this webinar will help make your product ready to meet the competition by adopting an architecture that is optimized for AI innovation. Join Ahmad Jubran, Cloud Product Innovation Consultant, and learn how to adapt your solutions for cloud models the right way.