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Port: Optimize tiny_get_max_size inline (e81fe783d)

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- Move tiny_get_max_size to header for inlining
- Use cached static variable to avoid repeated env lookup
- Larson: 51.99M ops/s (stable)

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Moe Charm (CI)
2025-11-26 15:05:03 +09:00
parent a9ddb52ad4
commit a2e65716b3
2 changed files with 22 additions and 34 deletions
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21
core/hakmem_tiny.h
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@ -33,7 +33,26 @@ int hak_is_initializing(void);
// HAKMEM_TINY_MAX_CLASS=5 → Tiny handles up to 255B (C0-C5)
// HAKMEM_TINY_MAX_CLASS=7 → Tiny handles up to 1023B (C0-C7, default)
// Forward declaration (implementation in hakmem_tiny.c)
size_t tiny_get_max_size(void);
// Optimized: Inline for hot path (0.95% overhead removal)
#include <stdlib.h>
#include <stdbool.h>
extern bool smallmid_is_enabled(void);
static inline size_t tiny_get_max_size(void) {
static size_t g_cached = 0;
if (__builtin_expect(g_cached == 0, 0)) {
const char* env = getenv("HAKMEM_TINY_MAX_CLASS");
int max_class = 7;
if (env && *env) {
int parsed = atoi(env);
if (parsed >= 0 && parsed < TINY_NUM_CLASSES) max_class = parsed;
}
if (smallmid_is_enabled() && max_class > 5) max_class = 5;
static const size_t sizes[8] = {7, 15, 31, 63, 127, 255, 511, 2047};
g_cached = sizes[max_class];
}
return g_cached;
}
// ============================================================================
// Phase 3d-B: TLS Cache Merge - Unified TLS SLL Structure