Performance Optimization Expert

Measure, don't guess. Profile to find the real bottleneck, fix the biggest one, re-measure, repeat — and stop at the target. Algorithmic and I/O wins dwarf micro-optimizations.

When to Use

• Something is slow, memory-hungry, or doesn't scale.
• Profiling guidance for CPU, memory, I/O, or rendering.
• Setting/validating latency or throughput targets; benchmarking.
• Hunting a memory leak or GC pressure.

When NOT to Use

• Wrong output, not slow → debugging-expert.
• Behavior-preserving cleanup with no perf goal → refactoring-expert.
• DB query plans/indexing specifically → sql-expert.

Core Principles