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Moe Charm (CI) 5ea6c1237b Tiny: add per-class refill count tuning infrastructure (ChatGPT) 
External AI (ChatGPT Pro) implemented hierarchical refill count tuning:
- Move getenv() from hot path to init (performance hygiene)
- Add per-class granularity: global → hot/mid → per-class precedence
- Environment variables:
  * HAKMEM_TINY_REFILL_COUNT (global default)
  * HAKMEM_TINY_REFILL_COUNT_HOT (classes 0-3)
  * HAKMEM_TINY_REFILL_COUNT_MID (classes 4-7)
  * HAKMEM_TINY_REFILL_COUNT_C{0..7} (per-class override)

Performance impact: Neutral (no tuning applied yet, default=16)
- Larson 4-thread: 4.19M ops/s (unchanged)
- No measurable overhead from init-time parsing

Code quality improvement:
- Better separation: hot path reads plain ints (no syscalls)
- Future-proof: enables A/B testing per size class
- Documentation: ENV_VARS.md updated

Note: Per Ultrathink's advice, further tuning deferred until bottleneck
visualization (superslab_refill branch analysis) is complete.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: ChatGPT <external-ai@openai.com>
2025-11-05 17:45:11 +09:00
..
hakmem_ace_controller.c
Debug Counters Implementation - Clean History
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hakmem_ace_controller.h
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hakmem_ace_metrics.c
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hakmem_ace_metrics.h
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hakmem_ace_stats.c
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hakmem_ace_stats.h
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hakmem_ace_ucb1.c
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hakmem_ace_ucb1.h
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hakmem_ace.c
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hakmem_ace.h
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hakmem_batch.c
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hakmem_batch.h
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hakmem_bigcache.c
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hakmem_bigcache.h
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hakmem_build_flags.h
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hakmem_config.c
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hakmem_config.h
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hakmem_debug.c
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hakmem_debug.h
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hakmem_elo.c
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hakmem_elo.h
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hakmem_evo.c
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hakmem_evo.h
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hakmem_features.h
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hakmem_internal.h
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hakmem_l25_pool.c
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hakmem_l25_pool.h
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hakmem_learn_log.c
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hakmem_learn_log.h
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hakmem_learner.c
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hakmem_learner.h
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hakmem_libc.c
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hakmem_mid_mt.c
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hakmem_mid_mt.h
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hakmem_p2.c
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hakmem_p2.h
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hakmem_policy.c
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hakmem_policy.h
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hakmem_pool.c
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hakmem_pool.h
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hakmem_prof.c
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hakmem_prof.h
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hakmem_site_rules.c
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hakmem_site_rules.h
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hakmem_size_hist.c
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hakmem_size_hist.h
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hakmem_sizeclass_dist.c
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hakmem_sizeclass_dist.h
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hakmem_super_registry.c
Tiny/SuperSlab: implement per-class registry optimization for fast refill scan
2025-11-05 17:02:31 +09:00
hakmem_super_registry.h
Tiny/SuperSlab: implement per-class registry optimization for fast refill scan
2025-11-05 17:02:31 +09:00
hakmem_sys.c
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hakmem_sys.h
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hakmem_syscall.c
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hakmem_syscall.h
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hakmem_tiny_alloc_new.inc
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hakmem_tiny_alloc_v3.inc
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hakmem_tiny_alloc.inc
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hakmem_tiny_assist.inc.h
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hakmem_tiny_background.inc
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hakmem_tiny_batch_refill.h
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hakmem_tiny_bg_bin.inc.h
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hakmem_tiny_bg_spill.c
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hakmem_tiny_bg_spill.h
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hakmem_tiny_bump.inc.h
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hakmem_tiny_config.c
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hakmem_tiny_config.h
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hakmem_tiny_drain_ema.inc.h
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hakmem_tiny_fastcache.inc.h
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hakmem_tiny_free.inc
Tiny/SuperSlab: implement per-class registry optimization for fast refill scan
2025-11-05 17:02:31 +09:00
hakmem_tiny_hot_pop_v4.inc.h
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hakmem_tiny_hot_pop.inc.h
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hakmem_tiny_hotmag.inc.h
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hakmem_tiny_init.inc
Tiny: add per-class refill count tuning infrastructure (ChatGPT)
2025-11-05 17:45:11 +09:00
hakmem_tiny_intel.inc
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hakmem_tiny_lifecycle.inc
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hakmem_tiny_magazine.c
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hakmem_tiny_magazine.h
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hakmem_tiny_metadata.inc
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hakmem_tiny_mini_mag.h
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hakmem_tiny_query_api.h
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hakmem_tiny_query.c
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hakmem_tiny_refill_p0.inc.h
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hakmem_tiny_refill.inc.h
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hakmem_tiny_registry_api.h
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hakmem_tiny_registry.c
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hakmem_tiny_remote_target.c
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hakmem_tiny_remote_target.h
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hakmem_tiny_remote.inc
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hakmem_tiny_rss_api.h
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hakmem_tiny_rss.c
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hakmem_tiny_simple.c
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hakmem_tiny_simple.h
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hakmem_tiny_slab_mgmt.inc
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hakmem_tiny_slow.inc
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hakmem_tiny_smallmag.inc.h
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hakmem_tiny_ss_target.c
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hakmem_tiny_ss_target.h
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hakmem_tiny_stats_api.h
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hakmem_tiny_stats.c
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hakmem_tiny_stats.h
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hakmem_tiny_superslab.c
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hakmem_tiny_superslab.h
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hakmem_tiny_tls_list.h
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hakmem_tiny_tls_ops.h
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hakmem_tiny_ultra_front.inc.h
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hakmem_tiny_ultra_simple.inc
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hakmem_tiny.c
Tiny: add per-class refill count tuning infrastructure (ChatGPT)
2025-11-05 17:45:11 +09:00
hakmem_tiny.h
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hakmem_trace.h
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hakmem_ucb1.c
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hakmem_whale.c
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hakmem_whale.h
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hakmem.c
Option A (Full): Inline TLS cache access in malloc()
2025-11-05 07:07:47 +00:00
hakmem.h
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mid_tcache.h
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slab_handle.h
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tiny_alloc_fast.inc.h
Tiny: add per-class refill count tuning infrastructure (ChatGPT)
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tiny_atomic.h
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tiny_debug_ring.c
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tiny_debug_ring.h
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tiny_debug.h
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tiny_fastcache.c
Add malloc routing analysis and refill success tracking
2025-11-05 05:56:02 +00:00
tiny_fastcache.h
Phase 6-8: RDTSC cycle profiling - Critical bottleneck discovered!
2025-11-05 05:44:18 +00:00
tiny_free_fast.inc.h
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tiny_mailbox.c
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tiny_mailbox.h
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tiny_mmap_gate.h
Tiny/SuperSlab: implement per-class registry optimization for fast refill scan
2025-11-05 17:02:31 +09:00
tiny_publish.c
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tiny_publish.h
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tiny_refill_opt.h
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tiny_refill.h
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tiny_remote.c
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tiny_remote.h
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tiny_sticky.c
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tiny_sticky.h
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tiny_tls_guard.h
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tiny_tls.h
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