Analyze cache behavior with Perf C2C on Arm
Introduction
Arm Statistical Profiling Extension and false sharing
Set up your environment for Arm SPE and Perf C2C profiling
False sharing example
Perform root cause analysis with Perf C2C
Next Steps

  Log an issue

  Fork and edit

  Discuss on Discord

About this Learning Path

Skill level:  Introductory
Reading time:  15 min
Last updated:  02 Jun 2025
Skill level:
  Introductory
Reading time:
  15 min
Last updated:
  02 Jun 2025
Author:Kieran Hejmadi
Arm IP:Neoverse
Tags: Performance and Architecture Linux Perf Runbook
Author:
  • Kieran Hejmadi
Arm IP:
Neoverse
Tags:
Performance and Architecture Linux Perf Runbook

Who is this for?

This topic is for performance-oriented developers working on Arm-based cloud or server systems who want to optimize memory access patterns and investigate cache inefficiencies using Perf C2C and Arm SPE.

What will you learn?

Upon completion of this learning path, you will be able to:

  • Identify and fix false sharing issues using Perf C2C, a cache line analysis tool.
  • Enable and use the Arm Statistical Profiling Extension (SPE) on Linux systems.
  • Investigate cache line performance with Perf C2C.

Prerequisites

Before starting, you will need the following:

  • Access to an Arm-based cloud instance with support for the Arm Statistical Profiling Extension (SPE).
  • A basic understanding of cache coherency and its impact on performance.
  • Familiarity with Linux Perf tools.
Next