A decent guide to using perf, with a number of carefully selected use-cases with example commands and outputs. That said, I have Brendan Gregg's "Systems Perfo

A decent guide to using perf, with a number of carefully selected use-cases with example commands and outputs. That said, I have Brendan Gregg's "Systems Performance" on my shelf here edging towards the top of the "needing to be read" stack. His flamegraphs were embarrassingly useful and the few examples his webpages give punch well above their weight. Maybe everything I need is in there.