Detecting Performance Warnings

Detects optimization barriers during Truffle compilation. Essential for finding virtual calls, type instabilities, and boundary issues that prevent peak performance.

When to Use This Skill

• Find optimization barriers preventing compilation
• Identify virtual calls that should be direct
• Detect non-constant stores and type check failures
• Locate TruffleBoundary issues in hot paths

Use EARLY in performance investigation - often reveals root causes quickly.

Quick Start

# Basic warning detection
<launcher> --experimental-options \
  --compiler.TracePerformanceWarnings=all <program>