Performance Profiling

Don't optimize based on vibes. Measure, find the bottleneck, fix it, measure again.

Progress Checklist

• Identify what's slow (user report, monitoring, reproduction)
• Measure baseline with numbers
• Identify the bottleneck
• Fix the bottleneck
• Measure again to confirm improvement
• Guard against regression

Step 0: What's Actually Slow?

Get specific before profiling: