[$] Remote per-CPU page list draining

Post Syndicated from original https://lwn.net/Articles/884448/

Sometimes, a kernel-patch series comes with an exciting, sexy title. Other
times, the mailing lists are full of patches with titles like “remote
per-cpu lists drain support
“. For many, the patches associated with
that title will be just as dry as the title itself. But, for those who are
interested in such things — a group that includes many LWN readers —
this short patch series from Nicolas Saenz Julienne gives some
insight into just what is required to make the kernel’s page allocator as
fast — and as robust — as developers can make it.