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Boxify superslab registry, add bench profile, and document C7 hotpath experiments

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This commit is contained in:
Moe Charm (CI)
2025-12-07 03:12:27 +09:00
parent 18faa6a1c4
commit fda6cd2e67
71 changed files with 2052 additions and 286 deletions
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18
core/box/ss_stats_box.h
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@ -43,6 +43,16 @@ extern _Atomic uint64_t g_free_ss_enter;
extern _Atomic uint64_t g_free_local_box_calls;
extern _Atomic uint64_t g_free_remote_box_calls;
// ============================================================================
// Superslab / Slab live-state observability (Tiny classes 0..7)
// ============================================================================
// NOTE: These are “event-style” counters updated at key transitions
// (alloc/free/reset) to keep overhead minimal. They are intended for
// regression detection and coarse budgeting rather than exact gauges.
extern _Atomic uint64_t g_ss_live_by_class[8]; // +1 on alloc, -1 on free (best-effort)
extern _Atomic uint64_t g_ss_empty_events[8]; // Observations of fully-empty Superslabs
extern _Atomic uint64_t g_slab_live_events[8]; // Observations of live slabs during scans
// ============================================================================
// Statistics Update API
// ============================================================================
@ -59,6 +69,11 @@ void ss_stats_cache_reuse(void);
// Thread-safe: mutex protected
void ss_stats_cache_store(void);
// Event-style observability helpers (Tiny classes only, relaxed atomics)
void ss_stats_on_ss_alloc_class(int class_idx);
void ss_stats_on_ss_free_class(int class_idx);
void ss_stats_on_ss_scan(int class_idx, int slab_live, int is_empty);
// ============================================================================
// Statistics Reporting API
// ============================================================================
@ -69,4 +84,7 @@ void superslab_print_stats(SuperSlab* ss);
// Print global SuperSlab statistics
void superslab_print_global_stats(void);
// ENV: HAKMEM_SS_STATS_DUMP=1 → dump coarse Superslab/slab counters once
void ss_stats_dump_if_requested(void);
#endif // HAKMEM_SS_STATS_BOX_H