By Mike Stephens, CEO of Entrepreneurial Spark.
I’m not a software engineer. I don’t know what a container, stack or kernel is, and I find even trying to describe an API a bit like trying to explain the offside rule. And until May 2016, I had never heard of “Open Source”.
Continue reading “Becoming Open Entrepreneurs”
Are you still doing all your Linux container management using an insecure, bloated daemon? Well, don’t feel bad. I was too until recently. Now I’m finding myself saying goodbye to my beloved Docker daemon, and saying hello to Buildah, Podman, and Skopeo. In this article, we’ll explore the exciting new world of rootless and daemon-less Linux container tools.
Continue reading “Say “Hello” to Buildah, Podman, and Skopeo”
This article was originally published on Ales Nosek – The Software Practitioner.
In the previous part of the series, we took a closer look at the event loop model. In this article, we are going to discuss several techniques that help you to prevent event loop delays.
The causes of event loop delays can be divided into two categories. The first category contains event loop delays caused by a handler calling a blocking API. The second category covers delays caused by a handler code taking a great amount of CPU time to complete. Let’s start with the first category and talk about blocking API calls.
Continue reading “Troubleshooting the Performance of Vert.x Applications, Part II — Preventing Event Loop Delays”
In this blog post, originally posted on Ales Nosek – The Software Practitioner, I am going to talk about how I installed OpenShift 4.1 on a Fedora laptop with 16 GB of RAM. If you are interested in deploying your own OpenShift instance whether for evaluation or testing please follow along with me.
Continue reading “Installing OpenShift 4.1 Using Libvirt and KVM”
This article is the first in a series of three articles which share my experience with troubleshooting the performance of Vert.x applications. The first article, originally posted on Ales Nosek – The Software Practitioner, provides an overview of the Vert.x event loop model, the second article covers techniques to prevent delays on the event loop, and the third article focuses on troubleshooting of event loop delays.
Programming with Vert.x requires a good understanding of its event loop model. From what I saw in practice, delayed or blocked event loop threads are the number one contributor to performance problems with Vert.x applications. But don’t worry. In this article, we are going to review the event loop model.
Continue reading “Troubleshooting the Performance of Vert.x Applications, Part I — The Event Loop Model”