9b0d746407
Merge separate g_tls_sll_head[] and g_tls_sll_count[] arrays into unified TinyTLSSLL struct to improve L1D cache locality. Expected performance gain: +12-18% from reducing cache line splits (2 loads → 1 load per operation). Changes: - core/hakmem_tiny.h: Add TinyTLSSLL type (16B aligned, head+count+pad) - core/hakmem_tiny.c: Replace separate arrays with g_tls_sll[8] - core/box/tls_sll_box.h: Update Box API (13 sites) for unified access - Updated 32+ files: All g_tls_sll_head[i] → g_tls_sll[i].head - Updated 32+ files: All g_tls_sll_count[i] → g_tls_sll[i].count - core/hakmem_tiny_integrity.h: Unified canary guards - core/box/integrity_box.c: Simplified canary validation - Makefile: Added core/box/tiny_sizeclass_hist_box.o to link Build: ✅ PASS (10K ops sanity test) Warnings: Only pre-existing LTO type mismatches (unrelated) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
// Box: Core Allocation
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// Purpose: SuperSlab allocation/deallocation and slab initialization
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//
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// Responsibilities:
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// - Allocate SuperSlab with ACE-aware sizing
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// - Free SuperSlab with LRU cache integration
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// - Initialize slab metadata (capacity, stride, freelist)
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// - Drain remote MPSC stack to freelist
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//
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// Dependencies:
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// - ss_os_acquire_box (OS-level mmap/munmap)
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// - ss_cache_box (LRU cache + prewarm)
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// - ss_stats_box (statistics)
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// - ss_ace_box (ACE-aware size selection)
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// - ss_slab_management_box (bitmap operations)
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// - hakmem_super_registry (registry integration)
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//
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// API:
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// - superslab_allocate() - main allocation entry
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// - superslab_free() - deallocation with LRU cache
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// - superslab_init_slab() - slab metadata initialization
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// - _ss_remote_drain_to_freelist_unsafe() - remote drain helper
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#ifndef SS_ALLOCATION_BOX_H
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#define SS_ALLOCATION_BOX_H
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#include "hakmem_tiny_superslab.h"
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#include <stdint.h>
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// SuperSlab allocation (ACE-aware)
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SuperSlab* superslab_allocate(uint8_t size_class);
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// SuperSlab deallocation (LRU cache integration)
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void superslab_free(SuperSlab* ss);
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// Slab initialization
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void superslab_init_slab(SuperSlab* ss, int slab_idx, size_t block_size, uint32_t owner_tid);
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// Remote drain helper (ownership already verified by caller)
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void _ss_remote_drain_to_freelist_unsafe(SuperSlab* ss, int slab_idx, TinySlabMeta* meta);
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#endif // SS_ALLOCATION_BOX_H
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