Introduction to Last Branch Records on perf

Hi,

I wrote a two part article on theory and practice of Last Branch Records using Linux perf. They were published on LWN.

This includes the background (what is a last branch record and why branch sampling), what you can use it for in perf, like hot path profiling, frame pointerless callgraphs, or automatic micro benchmarks, and also other uses like continuous compiler feedback.

The articles are now freely available.

Introduction of Last Branch Records
http://lwn.net/Articles/680985/

Advanced uses of Last Branch Reocrds
http://lwn.net/Articles/680996

-Andi

[email protected] -- Speaking for myself only.