8f18963ad5
- Redefine TinyHotHeap v2 as per-thread Hot Box with clear boundaries - Add comprehensive OS statistics tracking for SS allocations - Implement route-based free handling for TinyHeap v2 - Add C6/C7 debugging and statistics improvements - Update documentation with implementation guidelines and analysis - Add new box headers for stats, routing, and front-end management
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
// tiny_front_stats_box.h - Front class distribution counters (ENV gated)
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#pragma once
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdatomic.h>
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#include "../hakmem_tiny_config.h"
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extern _Atomic uint64_t g_tiny_front_alloc_class[TINY_NUM_CLASSES];
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extern _Atomic uint64_t g_tiny_front_free_class[TINY_NUM_CLASSES];
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static inline int tiny_front_class_stats_enabled(void) {
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static int g = -1;
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if (__builtin_expect(g == -1, 0)) {
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const char* e = getenv("HAKMEM_TINY_FRONT_CLASS_STATS");
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g = (e && *e && *e != '0') ? 1 : 0;
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}
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return g;
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}
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static inline int tiny_front_class_stats_dump_enabled(void) {
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static int g = -1;
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if (__builtin_expect(g == -1, 0)) {
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const char* e = getenv("HAKMEM_TINY_FRONT_CLASS_STATS_DUMP");
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const char* e2 = getenv("HAKMEM_TINY_FRONT_CLASS_STATS");
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g = ((e && *e && *e != '0') || (e2 && *e2 && *e2 != '0')) ? 1 : 0;
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}
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return g;
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}
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static inline void tiny_front_alloc_stat_inc(int class_idx) {
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if (__builtin_expect(tiny_front_class_stats_enabled(), 0)) {
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atomic_fetch_add_explicit(&g_tiny_front_alloc_class[class_idx], 1, memory_order_relaxed);
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}
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}
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static inline void tiny_front_free_stat_inc(int class_idx) {
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if (__builtin_expect(tiny_front_class_stats_enabled(), 0)) {
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atomic_fetch_add_explicit(&g_tiny_front_free_class[class_idx], 1, memory_order_relaxed);
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}
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}
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