Moe Charm (CI)
8052e8b320
Phase 24-26: Hot path atomic telemetry prune (+2.00% cumulative)
Summary:
- Phase 24 (alloc stats): +0.93% GO
- Phase 25 (free stats): +1.07% GO
- Phase 26 (diagnostics): -0.33% NEUTRAL (code cleanliness)
- Total: 11 atomics compiled-out, +2.00% improvement
Phase 24: OBSERVE tax prune (tiny_class_stats_box.h)
- Added HAKMEM_TINY_CLASS_STATS_COMPILED (default: 0)
- Wrapped 5 stats functions: uc_miss, warm_hit, shared_lock, tls_carve_*
- Result: +0.93% (baseline 56.675M vs compiled-in 56.151M ops/s)
Phase 25: Tiny free stats prune (tiny_superslab_free.inc.h)
- Added HAKMEM_TINY_FREE_STATS_COMPILED (default: 0)
- Wrapped g_free_ss_enter atomic in free hot path
- Result: +1.07% (baseline 57.017M vs compiled-in 56.415M ops/s)
Phase 26: Hot path diagnostic atomics prune
- Added 5 compile gates for low-frequency error counters:
- HAKMEM_TINY_C7_FREE_COUNT_COMPILED
- HAKMEM_TINY_HDR_MISMATCH_LOG_COMPILED
- HAKMEM_TINY_HDR_META_MISMATCH_COMPILED
- HAKMEM_TINY_METRIC_BAD_CLASS_COMPILED
- HAKMEM_TINY_HDR_META_FAST_COMPILED
- Result: -0.33% NEUTRAL (within noise, kept for cleanliness)
Alignment with mimalloc principles:
- "No atomics on hot path" - telemetry moved to compile-time opt-in
- Fixed per-op tax elimination
- Production builds: maximum performance (atomics compiled-out)
- Research builds: full diagnostics (COMPILED=1)
Generated with Claude Code
https://claude.com/claude-code
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-16 05:35:11 +09:00
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