profile-wp-functions

name	profile-wp-functions
description	Profile WordPress to identify functions suitable for Rust replacement.
disable-model-invocation	true

Profile WordPress Functions

1. Start profiling stack

cd profiling && docker compose up -d
./profiling/setup-wordpress.sh   # if not already installed

2. Profile with SPX

SPX UI: http://localhost:8080/?SPX_UI_URI=/&SPX_KEY=dev

curl -H "Cookie: SPX_ENABLED=1; SPX_KEY=dev" http://localhost:8080/
curl -H "Cookie: SPX_ENABLED=1; SPX_KEY=dev" http://localhost:8080/patina-benchmark/
curl -H "Cookie: SPX_ENABLED=1; SPX_KEY=dev" http://localhost:8080/?s=lorem

3. Score candidates

For each function using >0.5% wall time or >50 calls/request, score on:

• Time % (30%) — cumulative wall time
• Call count (20%) — high frequency = high savings
• API surface (20%) — string→string is ideal, complex objects = skip
• Determinism (15%) — pure function?
• WP test coverage (15%)

Score >= 70: implement. Also note if pluggable, if it calls apply_filters, if it depends on DB/state (skip those).

4. Clean up

cd profiling && docker compose down