# Personal AI Infrastructure — Performance Module

**Version**: v1.2.3 | **Status**: Active | **Last Updated**: March 2026

## Overview

The Performance module provides caching, lazy loading, and profiling/benchmarking tools for optimizing codomyrmex module execution. It enables PAI agents to detect performance regressions, cache expensive computations, and lazy-load heavy dependencies.

## PAI Capabilities

### Caching

```python
from codomyrmex.performance import CacheManager, cached_function

manager = CacheManager()

@cached_function(ttl=3600)
def expensive_analysis(code: str) -> dict:
    # Expensive static analysis cached for 1 hour
    return analyze(code)
```

### Lazy Loading

```python
from codomyrmex.performance import LazyLoader, lazy_import

# Defer heavy imports until first use
torch = lazy_import("torch")  # Only loaded when accessed
```

### Benchmarking and Profiling

```python
from codomyrmex.performance.profiling.benchmark import (
    BenchmarkSuite, BenchmarkResult, run_benchmark
)

suite = BenchmarkSuite(name="agent_performance")
result = run_benchmark(suite)
# Returns: timing statistics, regression detection, comparison with baselines
```

## Key Exports

| Export | Type | Purpose |
|--------|------|---------|
| `CacheManager` | Class | Cache lifecycle management |
| `cached_function` | Decorator | Function-level result caching |
| `LazyLoader` | Class | Deferred module loading |
| `lazy_import` | Function | Lazy import utility |
| `BenchmarkSuite` | Class | Benchmark definition and organization |
| `BenchmarkResult` | Class | Benchmark result data model |
| `run_benchmark` | Function | Execute benchmarks and collect results |

## PAI Algorithm Phase Mapping

| Phase | Performance Contribution |
|-------|--------------------------|
| **OBSERVE** | Profile module load times and identify bottlenecks |
| **EXECUTE** | Cache expensive computations; lazy-load optional dependencies |
| **VERIFY** | Run benchmarks to detect performance regressions in changes |
| **LEARN** | Track performance metrics over time for trend analysis |

## Architecture Role

**Core Layer** — Cross-cutting performance infrastructure. `CacheManager` and `LazyLoader` consumed by all modules needing optimization. Zero-Mock benchmark suite validates performance characteristics.

## Navigation

- **Self**: [PAI.md](PAI.md)
- **Parent**: [../PAI.md](../PAI.md) — Source-level PAI module map
- **Root Bridge**: [../../../PAI.md](../../../PAI.md) — Authoritative PAI system bridge doc
- **Siblings**: [README.md](README.md) | [AGENTS.md](AGENTS.md) | [SPEC.md](SPEC.md) | [API_SPECIFICATION.md](API_SPECIFICATION.md)
