- Create profile_ultra_detailed.sh with multi-level breakdown
- Add PROFILING_EXPLAINED.md with detailed explanation
- Break down execution into 3 levels:
- Level 1: Startup (Runtime + Libraries)
- Level 2: Calculation (Algorithm + Memory + Numeric)
- Level 3: I/O (Format + Output)
- Explain why different steps take different time
- Show breakdown by language type (Compiled/JIT/Interpreted)
- Provide performance optimization insights