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Major Features: - Debug counter infrastructure for Refill Stage tracking - Free Pipeline counters (ss_local, ss_remote, tls_sll) - Diagnostic counters for early return analysis - Unified larson.sh benchmark runner with profiles - Phase 6-3 regression analysis documentation Bug Fixes: - Fix SuperSlab disabled by default (HAKMEM_TINY_USE_SUPERSLAB) - Fix profile variable naming consistency - Add .gitignore patterns for large files Performance: - Phase 6-3: 4.79 M ops/s (has OOM risk) - With SuperSlab: 3.13 M ops/s (+19% improvement) This is a clean repository without large log files. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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Archive Directory
This directory contains historical documents, old benchmark results, and experimental work from the HAKMEM memory allocator project.
Structure
phase2/ - Phase 2 Documentation
Phase 2 modularization work (completed):
- IMPLEMENTATION_ROADMAP.md - Original Phase 2 roadmap
- P0_SUCCESS_REPORT.md - P0 batch refill success report (+5.16% improvement)
- README_PHASE_2C.txt - Phase 2C module extraction notes
- PHASE2_MODULE6_*.txt - Module 6 quick reference and summary
analysis/ - Historical Analysis Reports
Research and analysis documents from various optimization phases:
- RING_SIZE_* (4 files) - Ring buffer size analysis
- 3LAYER_* (2 files) - 3-layer allocation strategy experiments
- COMPARISON files - Performance comparisons
- MT_SAFETY_FINDINGS.txt - Multi-threading safety analysis
- NEXT_STEP_ANALYSIS.md - Strategic planning
- gemini_*.txt (4 files) - AI-assisted code reviews
old_benches/ - Historical Benchmark Results
Benchmark results from earlier phases:
- bench_phase*.txt - Phase milestone benchmarks
- bench_step*.txt - Step-by-step optimization results
- bench_reserve*.txt - Reserve pool experiments
- bench_*_results.txt - Various benchmark runs
old_logs/ - Debug and Test Logs
Debug logs, test outputs, and build logs:
- debug_*.log - Debug session logs
- test_*.log - Test execution logs
- obs_*.log - Observation/profiling logs
- build_pgo*.log - PGO build logs
- phase*.log - Phase-specific logs
experimental_scripts/ - Experimental Scripts
Scripts from A/B testing and parameter sweeps:
- ab_*.sh - A/B testing scripts
- sweep_*.sh - Parameter sweep scripts
- prof_sweep.sh - Profile sweeping
- reorg_plan_a.sh - Reorganization experiments
Timeline
- Phase 1: Initial implementation
- Phase 2: Modularization (Module 1-6)
- Module 2: Ring buffer optimization
- Module 6: L2 pool extraction
- P0: Batch refill (+5.16%)
- Phase 3: Mid Range MT allocator (current)
- Goal: 100-120M ops/sec
- Result: 110M ops/sec (achieved!)
Restoration
All files in this archive can be restored to the root directory if needed:
# Restore Phase 2 docs
cp archive/phase2/*.md .
# Restore specific analysis
cp archive/analysis/RING_SIZE_INDEX.md .
# Restore benchmark results
cp archive/old_benches/bench_phase1_results.txt .
See Also
CLEANUP_SUMMARY_2025_11_01.md- Detailed cleanup reportbench_results/- Current benchmark resultsperf_data/- Performance profiling data
Archived: 2025-11-01 Total: 71 files preserved