Tips and Tricks

Performance Optimization

Memory Usage

  • Limit memory allocation in harnesses
  • Use appropriate buffer sizes
  • Clean up resources properly

CPU Utilization

  • Optimize harness initialization
  • Minimize unnecessary operations
  • Use efficient data structures

Common Pitfalls

Input Handling

  • Validate input sizes
  • Handle edge cases
  • Check for malformed inputs

Resource Management

  • Close file handles
  • Free allocated memory
  • Release system resources

Advanced Techniques

Custom Mutators

  • Implement format-aware mutations
  • Define custom mutation strategies
  • Balance mutation frequency

Coverage Optimization

  • Use function-level instrumentation
  • Track edge coverage
  • Implement custom coverage hooks

Debugging Tips

Crash Analysis

  • Use sanitizers effectively
  • Implement proper logging
  • Save crash reproducers

Troubleshooting

  • Monitor system resources
  • Check harness assumptions
  • Validate environment setup