hakmem/docs/analysis/CLEANUP_SUMMARY_2025_11_01.md

# Repository Cleanup Summary - 2025-11-01

## Overview
Comprehensive cleanup of hakmem repository following Mid MT implementation completion.

## Statistics

### Before Cleanup:
- **Root directory**: 252 files
- **Documentation (.md/.txt)**: 124 files
- **Scripts**: 38 shell scripts
- **Build artifacts**: 46 .o files + executables
- **Temporary files**: ~12 tmp_* files
- **External sources**: glibc-2.38 (238MB)

### After Cleanup:
- **Root directory**: 95 files (~62% reduction)
- **Documentation (.md)**: 6 core files
- **Scripts**: 29 active scripts (9 archived)
- **Build artifacts**: Cleaned (via make clean)
- **Temporary files**: All removed
- **External sources**: Removed (can re-download)

## Archive Structure Created

```
archive/
├── phase2/              (5 files)  - Phase 2 documentation
├── analysis/            (15 files) - Historical analysis reports
├── old_benches/         (13 files) - Old benchmark results
├── old_logs/            (29 files) - Debug/test logs
└── experimental_scripts/ (9 files) - AB tests, sweep scripts
```

## Files Moved

### Phase 2 Documentation → `archive/phase2/`
- IMPLEMENTATION_ROADMAP.md
- P0_SUCCESS_REPORT.md
- README_PHASE_2C.txt
- PHASE2_MODULE6_*.txt

### Historical Analysis → `archive/analysis/`
- RING_SIZE_* (4 files)
- 3LAYER_* (2 files)
- *COMPARISON* (2 files)
- BOTTLENECK_COMPARISON.txt
- DEPENDENCY_GRAPH.txt
- MT_SAFETY_FINDINGS.txt
- NEXT_STEP_ANALYSIS.md
- QUESTION_FOR_CHATGPT_PRO.md
- gemini_*.txt (4 files)

### Old Benchmarks → `archive/old_benches/`
- bench_phase*.txt (3 files)
- bench_step*.txt (4 files)
- bench_reserve*.txt (2 files)
- bench_hakmem_default_results.txt
- bench_mimalloc_results.txt
- bench_getenv_fix_results.txt

### Benchmark Logs → `bench_results/`
- bench_burst_*.log (3 files)
- bench_frag_*.log (3 files)
- bench_random_*.log (4 files)
- bench_3layer*.txt (2 files)
- bench_*_final.txt (2 files)
- bench_mid_large*.log (6 files - recent Mid MT benchmarks)
- larson_*.log (2 files)

### Performance Data → `perf_data/`
- perf_*.txt (15 files)
- perf_*.log (11 files)
- perf_*.data (2 files)

### Debug Logs → `archive/old_logs/`
- debug_*.log (5 files)
- test_*.log (4 files)
- obs_*.log (7 files)
- build_pgo*.log (2 files)
- phase*.log (2 files)
- *_dbg*.log (4 files)
- Other debug artifacts (3 files)

### Experimental Scripts → `archive/experimental_scripts/`
- ab_*.sh (4 files)
- sweep_*.sh (4 files)
- prof_sweep.sh
- reorg_plan_a.sh

## Deleted Files

### Temporary Files (12 files):
- .tmp_* (2 files)
- tmp_*.log (10 files)

### Build Artifacts:
- *.o files (46 files) - via make clean
- Old executables - rebuilt via make

### External Sources:
- glibc-2.38/ (238MB)
- glibc-2.38.tar.gz* (2 files)

## Remaining Root Files (Core Only)

### Documentation (6 files):
- README.md
- DOCS_INDEX.md
- ENV_VARS.md
- SOURCE_MAP.md
- QUICK_REFERENCE.md
- MID_MT_COMPLETION_REPORT.md (current work)

### Source Files:
- Benchmark sources: bench_*.c (10 files)
- Test sources: test_*.c (28 files)
- Other .c files as needed

### Build System:
- Makefile
- build_*.sh scripts

## Active Scripts (29 scripts)

### Benchmarking:
- **scripts/run_mid_mt_bench.sh** ⭐ Mid MT main benchmark
- **scripts/compare_mid_mt_allocators.sh** ⭐ Mid MT comparison
- scripts/run_bench_suite.sh
- scripts/bench_mode.sh
- scripts/bench_large_profiles.sh

### Application Testing:
- scripts/run_apps_with_hakmem.sh
- scripts/run_apps_*.sh (various profiles)

### Memory Efficiency:
- scripts/run_memory_efficiency*.sh
- scripts/measure_rss_tiny.sh

### Utilities:
- scripts/kill_bench.sh
- scripts/head_to_head_large.sh

## Directories

### Core:
- `core/` - HAKMEM implementation
- `scripts/` - Active scripts
- `docs/` - Documentation

### Benchmarking:
- `bench_results/` - Current & historical benchmark results (865 files)
- `perf_data/` - Performance profiling data (28 files)

### Archive:
- `archive/` - Historical documents and experimental work (71 files)

### New Structure (Frontend/Backend Plan):
- `adapters/` - Frontend adapters (1 file)
- `engines/` - Backend engines (1 file)
- `include/` - Public headers (1 file)

### External:
- `mimalloc-bench/` - Benchmark suite (submodule)

## Impact

- **Disk space saved**: ~250MB (glibc sources + build artifacts)
- **Repository clarity**: 62% reduction in root files
- **Organization**: Historical work properly archived
- **Active work**: Mid MT benchmarks clearly identified

## Notes

- All archived files are preserved and can be restored if needed
- Build artifacts can be regenerated with `make`
- External sources (glibc) can be re-downloaded if needed
- Recent Mid MT benchmark logs kept in `bench_results/` for easy access

## Next Steps

- Continue Mid MT optimization work
- Use `scripts/run_mid_mt_bench.sh` for benchmarking
- Refer to archived phase2/ docs for historical context
- Maintain clean root directory for new work