Brendan Gregg·2017·USENIXATCHow a simple visualization of sampled stack traces became the default lens for CPU profiling — and how Gregg uses it to find real wins in real systems.
Brendan Gregg·2015·VelocityBrendan Gregg's tour of the Linux observability toolbox — what each tool measures, when to reach for it, and a methodology for going from 'it's slow' to a real answer.
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