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perf: align ALIGNMENT to cache line size (16 → 64 bytes) to fix false sharing #16

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perf: align ALIGNMENT to cache line size (16 → 64 bytes) to fix false sharing #16

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4 changes: 3 additions & 1 deletion include/alignment.h
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,9 @@
// <summary></summary>
// ***********************************************************************
#pragma once
#define ALIGNMENT 16
// Match the CPU cache line size (see cache.h) to prevent false sharing between
// concurrently-written fields that happen to land on the same cache line.
#define ALIGNMENT 64
Comment on lines +11 to +13

#pragma pack(ALIGNMENT)
#define class_alignment alignas(ALIGNMENT)
Comment on lines +13 to 16