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What happens inside a system call or library call? What if you want to do more than just logging calls, e.g. you want to compile statistics on certain behavior. Bpftrace allows you to write small programs that execute whenever an event occurs.

There are two layers to the answer. One layer is conceptual: what are queries, tables, indices, etc? The other layer is literal. What are the actual bytes sent over the wire or grabbed from the disk?

Choosing where to host the database, materialising data and using database as a job queue. Thougful and deep analysis, real production workload affect

I’m writing a JavaScript to C compiler, and I’d like to share the journey. Why? Figuring out how things ‘really work’ is a deep itch for me. I’m a self-taught developer. Throughout my infatuation with coding I’ve been slowly digging deeper and deeper into the magic of how our code actually runs.

Explains techniques to make the physical page table frames accessible to our kernel. It then uses such a technique to implement a function that translates virtual to physical addresses. It also explains how to create new mappings in the page tables.

Computer science in plain English To really understand how data structures work, we’re going to derive each of them from scratch. Starting with bits.

This article shows a trivial implementation of a ray marching, the goal is to go a little bit beyond simple spheres.

HTTP is the application protocol that powers the Web. It began life as the so-called HTTP/0.9 protocol in 1991. Finally HTTP2 emerge in 2015, and recently HTTP/3.

Use Cases, Integration and Challenges