hardware-effects | Demonstration of various hardware effects

hardware-effects is a C++ library. hardware-effects has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

This repository demonstrates various hardware effects that can degrade application performance in surprising ways and that may be very hard to explain without knowledge of the low-level CPU and OS architecture. For each effect I try to create a proof of concept program that is as small as possible so that it can be understood easily. Related repository with GPU hardware effects: Those effects obviously depend heavily on your CPU microarchitecture and model, so the demonstration programs may not showcase the slowdown on your CPU, but I try to make them as general as I can. That said, the examples are targeting x86-64 processors (Intel and AMD) and may not make sense on other CPU architectures. I focus on effects that should be observable on commodity (desktop/notebook) hardware, so I don't include things like NUMA effects here (although in a few years they might be common even in personal computers). The code is mainly tested on Linux.