What has 21 million lines of code, 4000 contributors, and more changes per day than most software projects have in months, or even years? The Linux kernel, of course. In this video, Greg Kroah-Hartman provides an inside view of how the largest, fastest software project of all absorbs so many changes while maintaining a high level of quality and stability.

KernelShark is a front end reader of trace-cmd(1) output. "trace-cmd record" and "trace-cmd extract" create a trace.dat (trace-cmd.dat(5)) file. kernelshark can read this file and produce a graph and list view of its data.