- Focus on field zoning by grouping fields based on write ownership and access frequency to prevent false sharing in multi-threaded data structures.
- Use alignment and padding, such as 128-byte alignment instead of 64 bytes, to avoid adjacent-line prefetch issues and ensure hot fields are on separate cache lines.
- Employ #[repr(C)] to enforce field order and prevent compiler reordering that could undermine cache-conscious layout strategies.
- Avoid manual prefetch hints in stride-1 access patterns, as they can compete with hardware prefetchers and harm performance.
- Design ring buffer capacity deliberately to fit cache levels, considering working-set budgets and burst absorption, rather than using arbitrary round numbers.