Fix object alignment for double-word boundaries (Issue #57) #203
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This commit implements Issue #57: Object alignment fixes by updating the memory allocator to ensure all objects are aligned to 16-byte boundaries for improved performance on modern architectures. Key changes: - Updated alloc_size_of() to align total allocation size to 16 bytes - Since AllocHeader is exactly 16 bytes, objects are naturally aligned - Added comprehensive alignment test coverage - Fixed fragmentation test expectations for alignment impact - Updated .gitignore to properly exclude GC test results Performance impact: ~8% regression in allocation benchmarks due to increased memory usage, but provides better cache alignment and prepares for future SIMD optimizations. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
Performance Impact
Test Coverage
test_alloc_size_calculation()to verify alignment calculationtest_allocation_alignment()to verify runtime alignmenttest_header_alignment()to verify header positioning🤖 Generated with Claude Code