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+# Disk Checker
+
+Disk benchmarking and latency visualization tool for fio and badblocks output.
+
+## Features
+
+- Parse fio JSON+ latency CSV files
+- Generate histogram and CDF plots
+- REST API for remote benchmarking
+- Async job management for long-running benchmarks
+
+## Installation
+
+```bash
+git clone <repository>
+cd disk-checker
+python -m venv venv
+source venv/bin/activate
+pip install -e ".[dev]"
+```
+
+## CLI Usage
+
+```bash
+# Basic usage
+python -m disk_checker scan_latency.csv
+
+# With options
+python -m disk_checker scan_latency.csv --metric read_clat --unit ms --log-x
+
+# Generate CDF
+python -m disk_checker scan_latency.csv --cdf
+
+# View all metrics
+python -m disk_checker scan_latency.csv --all-metrics
+```
+
+## API Usage
+
+```bash
+# Start the server
+python -m disk_checker.scripts.serve --host 0.0.0.0 --port 8000
+
+# Access API docs at http://localhost:8000/docs
+```
+
+### API Endpoints
+
+- `POST /api/v1/scan` - Upload CSV and get analysis
+- `POST /api/v1/plot` - Generate and return plot image
+- `POST /api/v1/benchmark` - Start a benchmark job
+- `GET /api/v1/jobs/{id}` - Check job status
+- `GET /health` - Health check
+
+## Architecture
+
+```
+disk-checker/
+├── src/disk_checker/
+│   ├── core/          # Business logic (extractor, converter, helpers, orchestrator)
+│   ├── plotting/      # Visualization (matplotlib)
+│   ├── web/           # FastAPI backend
+│   └── scripts/       # Entry points (cli, serve)
+├── tests/             # Test suite
+└── data/              # Sample data
+```
+
+## Testing
+
+```bash
+pytest
+pytest --cov=disk_checker
+pytest --cov=disk_checker --cov-report=html
+```
+
+## License
+
+MIT
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