[$] In search of faster this_cpu operations
The kernel’s this_cpu\
operations are meant to speed access to per-CPU variables. They are
more optimal on some CPUs than others, though. During a
memory-management-track session at the 2026 Linux Storage,\
Filesystem, Memory Management, and BPF Summit, Yang Shi proposed a
fundamental, and somewhat controversial, change to how these operations
work in order to provide better performance on … ⌘ Read more