# Internals

Explore the engineering principles and technical implementation details that power Tressi's high performance load generation.

- [Architecture Overview](./01-architecture.md): The multi process design and core component orchestration.
- [Shared Memory Architecture](./02-shared-memory.md): Zero copy metrics collection using `SharedArrayBuffer`.
- [Execution Engine](./03-execution-engine.md): Asynchronous pipelining and rate limiting algorithms.
- [Metrics & Calculations](./04-metrics-and-calculations.md): HDR Histograms and high precision statistical analysis.
- [Migration Architecture](./05-migrations.md): Sequential versioning for JSON config and SQLite schema evolution.

## Next Section

- [Community](../06-community/index.md): Project status, licensing, and contribution guidelines.