Conducting interviews recently for hiring for one of my teams has left me with some thoughts and tips for candidates navigating software engineering interviews.

I try to answer the question: Given that x86 has strong ordering is there any point from a performance perspective to using anything other than the C++ sequentially consistent memory ordering?

Recently, I was asked to give a demo to the team on how to use perf to profile applications. Here are the notes for that.

A look at the significant influence that configuration has on Aeron’s performance depending on use-case, and the importance of not just relying on the default configuration.

Here I use two of my implementations of lockfree SPSC (single producer single consumer) ringbuffers to compare atomics performance between Go and C++.

I often find myself using these commands to get detailed information about a system’s hardware or manage system’s resources. I will probably update this list as I think of more.

Linux Kernel security mitigations protect systems from hardware security vulnerabilities, but they often come at the cost of performance. In this article, I will note possible performance impact of kernel mitigations, particularly in the context of Docker.

Here is a simpler and slightly more automated version of building kernel configs.