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>
28 lines
887 B
C
28 lines
887 B
C
// Box: Slab Management (Bitmap Operations)
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// Purpose: Slab bitmap manipulation within SuperSlab
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//
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// Responsibilities:
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// - Activate slab in bitmap (mark as in-use)
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// - Deactivate slab in bitmap (mark as free)
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// - Find first free slab using bitmap (ctz-based search)
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//
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// Dependencies:
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// - hakmem_tiny_superslab.h (for SuperSlab, ss_slabs_capacity)
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//
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// API:
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// - superslab_activate_slab() - mark slab active in bitmap
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// - superslab_deactivate_slab() - mark slab inactive
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// - superslab_find_free_slab() - find first free slab (ctz)
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#ifndef SS_SLAB_MANAGEMENT_BOX_H
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#define SS_SLAB_MANAGEMENT_BOX_H
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#include "hakmem_tiny_superslab.h"
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// Slab bitmap management
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void superslab_activate_slab(SuperSlab* ss, int slab_idx);
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void superslab_deactivate_slab(SuperSlab* ss, int slab_idx);
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int superslab_find_free_slab(SuperSlab* ss);
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#endif // SS_SLAB_MANAGEMENT_BOX_H
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