What is CPU Throttling

No one lacks an opinion when it comes to CPU limits. Are they a mandatory requirement or a misunderstood evil? Most cloud providers tell you to set them, yet members of the original Kubernetes team at Google say not to use them! Why all the debate about something…

Learn about the differences between the CPU Manager's policies and get recommendations for specifying CPU requests and limits.

“Sir, your application is continually getting throttled,” I repeated. The highly skilled team that I was brought in to help with an outage was in disbelief. They had been using the same limits configuration in production for over two years. Yet, the Grafana…

I’ve bumped into consistent hashing a couple of times lately. The paper that introduced the idea (Consistent Hashing and Random Trees: Distributed Caching Protocols for Relieving Hot Spots on the World Wide Web by David Karger et al) appeared ten years ago…

Monolith by Rene Aigner Some patterns are just about the code. If your code looks like this, and you need it to do that, here’s what to do. You’d do well to study such patterns, as they give you a …

I/O multiplexing is doing I/O with many sources and giving good response. I/O multiplexing is explained with select, poll and epoll calls.

A brief introduction to the course of ECE 252, including the calendar description, prerequisites, textbook(s), intended learning outcomes, and a bit about me.

io_uring: So Fast. It's Scary. - Paul Moore, Microsoft

The io_uring subsystem was introduced in Linux v5.1 and provided a new way to do asynchronous I/O on Linux, improving on the existing AIO subsystem. Since then io_uring has been a source of active development…

An Event Loop, often referred to as a message dispatcher, is a fundamental design pattern that serves as a central component for managing and dispatching events or messages within a software application. This pattern is integral in creating highly responsive…

After a long time of blog hiatus, I was in the mood of trying out one of these "The best way to XYZ" posts for once. While Spring Boot 3 and Spring Framework 6 releases have focused a lot on revamping the application context and annotation processing for…

I was recently faced with the perplexing problem of making Spring and MongoDB serialize/deserialize a polymorphic class. Initially, it seemed like a simple task, but it proved to be more complicated than anticipated. Allow me to share my solution.

Polymorphic fields with MongoDB and Spring Data give you MappingInstantiationException? Here's how to fix that.

Why ScyllaDB completely bypasses the Linux cache during reads, using its own highly efficient row-based cache instead.

Adaptive Concurrency Limits @ Netflix

Value classes are new in Kotlin! Shall we now drop all our type aliases and data classes in favor of value classes?

Besides implementing non-blocking applications, Kotlin Coroutines can also easily be used for parallel or concurrent compute of code. This post not only explains how it can be done, but also how it is implemented on JVM level.