# Feedback Summary: vm-benchmarks

## Decision: APPROVE ✅

All acceptance criteria have been successfully implemented and validated. Tests pass (14/14), benchmarks achieve performance targets, and code review found no blocking issues.

## What Went Well

- **Complete Implementation**: All 4 acceptance criteria satisfied:
  - benches/vm_benchmarks.rs created with vm_simple, vm_complex, vm_variables benchmarks
  - Bytecode pre-compiled outside benchmark loop to isolate VM performance
  - Criterion generates valid estimates.json with mean.point_estimate field
  - vm_simple measures pure VM execution (84.54ns, well below 150ns target)

- **Strong Performance**: Benchmarks significantly exceed targets:
  - vm_simple: 84.54ns (43.4% below 150ns target)
  - vm_complex: 97.92ns
  - vm_variables: 187.20ns

- **Comprehensive Testing**: 14 test cases covering all acceptance criteria and edge cases, all passing.

## Technical Debt (Non-Blocking)

**Suggestion for future improvement**:
- The test_all_required_benchmarks_exist() function in tests/benchmark_validation.rs could be enhanced to validate the new VM benchmarks. Consider adding vm_simple, vm_complex, and vm_variables to the required_benchmarks vector for automated validation.

This is a nice-to-have improvement but not required for issue closure.

## Ready to Merge

The implementation is complete and meets all requirements. No further work needed.
