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