Upstream kernel developers have begun hitting RAM capacity issues when carrying out large Linux kernel builds with the likes of "allyesconfig" for enabling all possible modules/options. While 32GB of system RAM has been common for developer desktops in recent years, large Linux kernel builds and taking advantage of multiple compile jobs have begun to cross that threshold and leading to out-of-memory behavior. Fortunately, a set of patches to the kernel's objtool is taming the memory use to reign in kernel builds for such scenarios...
Earlier this week I posted benchmarks looking at how the AMD Ryzen Threadripper 3990X performance has evolved in the three years to the day since that 64-core / 128-thread HEDT chip launched. While overall the Threadripper 3990X performance has evolved nicely under Linux since 2020, when it came to the video encoding tests in particular they performed worse overall. As I had raised in that earlier article and now elaborated with some follow-up tests, that regression is driven by the default "schedutil" frequency scaling governor used by default.