Post Syndicated from original https://lwn.net/Articles/913568/

On the surface, the kernel’s internal timer mechanism would not appear to
have changed much in a long time; the core API looks quite similar to the
one present in the 1.0 release. Underneath the API, naturally, quite a bit
of complexity has been added over the years. The implementation of this
API looks to become even more complex — but faster — if and when this
patch set from Anna-Maria Behnsen finds its way into the mainline.