Performance Profiling

Name: Performance Profiling
Author: LoopyLuci

ASecurity

Profile Python apps with cProfile py spy and scalene

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Added September 10, 2026

ai-agentspythonbashapidatabaseperformance

Works with

Security analysis

A96/100

mediumInstalls packages at runtime which could introduce malicious dependencies

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Scanned September 10, 2026

npx -y skills add LoopyLuci/Skills --skill performance-profiling --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md

---
name: performance-profiling
description: "Profile Python apps with cProfile py spy and scalene"
---

# Performance Profiling

## cProfile
```bash
python -m cProfile -o output.prof myapp.py
python -m pstats output.prof
```

## py-spy (Running Process)
```bash
pip install py-spy
py-spy record -o profile.svg --pid 12345
py-spy top --pid 12345
```

## Scalene
```bash
pip install scalene
scalene myapp.py
```

## What to Profile
- CPU hotspots (cProfile, py-spy)
- Memory allocation (tracemalloc)
- I/O bottlenecks
- Database queries
- API call latency