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linux-perf

Guide perf data collection and diagnose CPU hotspots in Linux applications.

1|1|Updated Apr 18, 2026
Search Tags:#performance#profiling#linux#perf#system-call#cpu-analysis
One-click install
npx skills add https://github.com/caomengxuan666/perf-skills --skill linux-perf-caomengxuan666
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: linux-perf
Source: https://github.com/caomengxuan666/perf-skills/tree/main/.claude/skills/linux-perf
Command: npx skills add https://github.com/caomengxuan666/perf-skills --skill linux-perf-caomengxuan666

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill enables users to analyze and optimize application performance on Linux systems by leveraging the perf tool, identifying CPU hotspots, syscall bottlenecks, and memory inefficiencies effectively.

Core Features & Use Cases

  • Performance Profiling: Guides through collecting detailed CPU and syscall data during application execution.
  • Hotspot Identification: Assists in pinpointing functions and code paths that consume the most CPU time.
  • System Call Analysis: Enables detection of expensive or frequent system calls that impact performance.
  • Use Case: Developers troubleshooting slow server response times can use this Skill to identify performance bottlenecks and optimize critical code sections.

Quick Start

Use the linux-perf skill to profile a running application by attaching perf to its process ID and analyzing the top CPU hotspots interactively.

Frequently Asked Questions about linux-perf

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I identify CPU hotspots in a Linux application?▼

To identify CPU hotspots in a Linux application, you attach perf to its process ID to collect execution data and interactively analyze the top functions consuming CPU time.

What is the best way to diagnose system call bottlenecks on Linux?▼

The best way to diagnose system call bottlenecks on Linux is by using perf to collect detailed syscall data during application execution, which helps detect expensive or frequent calls impacting performance.

How does performance profiling guide optimization for slow server response times?▼

Performance profiling guides optimization for slow server response times by pinpointing CPU hotspots and memory inefficiencies, allowing developers to target and optimize critical code sections effectively.

Can I use perf to analyze memory inefficiencies and system efficiency interactively?▼

Yes, you can use perf to analyze memory inefficiencies and system efficiency interactively by attaching the tool to a running process and diagnosing bottlenecks to optimize overall responsiveness.

Do I need root privileges to attach perf to a running process ID for profiling?▼

You need appropriate permissions to attach perf to a running process ID for profiling, as collecting detailed CPU and syscall data typically requires elevated system access to monitor execution effectively.

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