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perf - Linux Performance Profiling with Perf

Profile and trace Linux system performance using perf tool

Tags

Updated: 2026-03-24
profilingperformancetracingLinuxCPUanalysis

Capabilities

record performance datagenerate perf reportcompare performance datadisplay performance statistics

Typical Inputs

perf.data fileprocess IDLinux kernel

Typical Outputs

perf report textflame graph fileperformance statistics

What this skill does

  • record performance data
  • generate perf report
  • compare performance data
  • display performance statistics
  • create flame graphs
  • analyze cache events
  • analyze lock events
  • analyze scheduler events
  • resolve symbols
  • analyze hot paths
  • measure overhead
  • generate flat profile
  • examine call chains
  • identify bottlenecks

Inputs

  • perf.data file
  • process ID
  • Linux kernel
  • kallsyms file
  • sudo permissions
  • DSO binaries

Outputs

  • perf report text
  • flame graph file
  • performance statistics
  • call chain data
  • flat profile output

Requirements

  • Linux kernel with perf support
  • sudo privileges
  • Bash shell access
  • frame pointer support

Source

  • Spec: SKILL.md

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