[$] Unifying kernel tracing
Steven Rostedt has been a part of the Linux kernel tracing community for
most of its existence, it seems. He was the developer of ftrace,
which was one of the early mainline additions for tracing. There are now
many tracing facilities in the kernel. At the 2019
Open Source Summit Europe in Lyon, France, Rostedt wanted to present an idea
that he has been thinking about for a long time: a unified tracing platform
to provide access to all of the kernel tracing facilities from user-space applications.