🚀 DeltaPerf AI

DeltaPerf AI is a Python-powered tool for analyzing .pcap and .pcapng network capture files with a focus on latency detection, protocol behavior, and AI-powered summarization. Whether you're a network engineer, security analyst, or curious hacker, DeltaPerf AI transforms raw packet data into actionable insights.

---

🔍 Features

• 📁 Multi-file PCAP Analysis – Automatically scans and processes all capture files in a directory.
• 🔥 Latency Detection – Flags high-latency events (>1s) and extreme spikes (>10s).
• 🎨 Color-Coded CLI Dashboard – Uses colorama and tabulate for clean, readable summaries.
• 🤖 AI-Powered Summaries – Integrates with Ollama to generate expert-level insights.
• ⚠️ Anomaly Detection – Optional deep dive into suspicious patterns and performance issues.
• 🧠 Interactive Prompts – Choose when to trigger AI analysis or skip it.

---

📦 Requirements

• Python 3.8+
• pyshark
• tabulate
• colorama
• requests

Install dependencies:

pip install pyshark tabulate colorama requests

---

🛠️ Usage

1. Place your .pcap or .pcapng files in the working directory.
2. Start your local Ollama server (if using AI features).
3. Run the script:

python delta_perf_ai.py

---

📊 Sample Output

🎨 Color Legend

Legend: 🔴 >10s 🟡 >1s 🟢 ≤1s 🔵 TCP 🟣 UDP ⚪ Other

📁 File Summary

📁 Available Capture Files: 3

📦 Total Packets Analyzed: 45,320

🔥 Latency Events (>1s): 87

🧮 Average Delta Time (s): 0.002345

🧠 AI Summary (via Ollama)

🤖 Model: tinyllama:1.1b

🕒 Generated: 2025-08-08 15:04 CDT

📊 Events Analyzed: 1,204

Summary:

• Latency spikes observed in TCP traffic between 192.168.1.10 and 192.168.1.20.
• UDP traffic remained stable with minimal delay.
• No retransmissions or suspicious behavior detected.

⚠️ Error Handling

If a file is missing or unreadable:

❌ Error processing file ./captures/fuzz-2006-06-26-2594.pcap: [Errno 2] No such file or directory

If Ollama is not running:

❌ Ollama is not running. Please start Ollama server to use AI features.

📈 Future Enhancements

• Export summary to .txt or .csv
• GUI dashboard with charts
• Real-time packet stream analysis
• Integration with cloud-based capture sources

🤝 Contributing

Pull requests and feedback are welcome! Feel free to fork the repo, suggest features, or report bugs.

🧠 Built With

• Python
• PyShark
• Tabulate
• Colorama
• Ollama (for AI summaries)

📜 License

MIT License — free to use, modify, and share.