Chapter 6

Introduction to Profiling

Abstract

This chapter provides an introduction to the process of performance profiling. The first section covers the fundamentals of the core and uncore PMU available on Intel(R) processors. The Section 6.2 explores the Top-Down Hierarchical technique for using PMU events to identify issues affecting pipeline efficiency.

Keywords

PMU

Top-down

Event counters

Homines quod volunt credunt (Men believe what they want)

Julius Caesar

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