Swap memory, also known as swap space, is a feature in computer systems that acts as an extension of physical RAM (Random Access Memory). It comes into play when RAM becomes full and the system needs additional space to store and manage running processes. Here’s a breakdown of how swap memory works: RAM Priority: Physical
System calls are the essential bridge between user programs and the operating system kernel. They allow programs to access system resources and functionalities that are restricted for security reasons or require privileged access. These calls trigger specific actions within the kernel, and the program execution is paused until the kernel completes the requested service. Here’s
If you have worked with Linux processes there is a high chance that you have seen these terms, zombie process and orphan process. They can be confusing sometimes, in this article we are going to look at the difference between an orphan process and a zombie process with help of some C coding. What is
Kubernetes has become the most popular choice to deploy and manage micro-services. If you are new to Kubernetes or you’ve recently started using it, you’d be aware of the advantages it provides. With more and more organizations adopting micro-services architecture and moving towards containerization of the services. It’s important to understand the flow of data
Kubernetes has gained a lot of traction recently and is one of the standards followed across organizations when it comes to running and managing their containerized workloads. In this article, we are going to talk about Kubernetes operators. Usage Operators are used to running applications and tools on Kubernetes, like Redis Operator, Flink Operator, Istio
In our previous article series on Basics on Kubernetes which is still going, we talked about different components like control plane, pods, etcd, kube-proxy, deployments, etc. You can read the article series on Learnsteps. In this article, we are going to see how we can do basic debugging in Kubernetes. Before starting I am assuming
We have always focused on learning paths that can help you in longer and more in-depth knowledge. In this article, we are going to talk about what you can learn from Kubernetes from long-term perspective. When we talk about Kubernetes there are multiple components to it and basic deployment ways also have a lot of
Hi in this article we will talk about a very easy DevOps interview question. How to kill a running process. Earlier we have talked about VPC design, logging system design, monitoring system design, page fault, etc. kill, pkill and killall So we can use kill, pkill and killall commands to kill a process in Linux. All of these
In our previous interview-related question we talked about VPC design, logging system design, monitoring system design, page fault, etc. In this article, we are going to talk about how to calculate how many usage IPs are there in a /24 CIDR. What is a CIDR? CIDR stands for classless inter-domain routing. This is a set
In the last article, we talked about threads and different types of threads. In this article we are going to talk about paging and how does it work. You can read the last article below. What is Paging? Paging is a memory management scheme by which a computer stores and retrieves data from secondary memory