Make D$ replacement policy configurable #2656
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ingallsj
approved these changes
Oct 8, 2020
hcook
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Oct 8, 2020
ingallsj
approved these changes
Oct 8, 2020
perSet returns true if the policy's state is typically replicated for each cache set (as with LRU) or is typically global (as with Random). It's not binding, but it's useful for cache controllers.
Will help with timing for [pseudo-]LRU.
For determinism and X tolerance.
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Also extended the ReplacementPolicy API to indicate whether the policy is typically used on a per-set basis (as with pLRU etc.) or a global basis (as with random).
Type of change: other enhancement
Impact: API addition (no impact on existing code)
Development Phase: implementation