Temporal and Spatial Locality - Department of Computer Science
Temporal and Spatial Locality - Department of Computer Science
Temporal and Spatial Locality - Department of Computer Science
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Marc Snir<br />
Hashed Dircet Mapped Cache<br />
� Miss A Hash(M) – miss rate on direct mapped<br />
cache <strong>of</strong> size M, assuming that addresses<br />
are hashed using a universal hash function.<br />
� Thm:<br />
1. E[Miss A Hash (M)] ≤ M/(M-m+1) (MissA OPT (m)+m)<br />
2. If H is m-independent <strong>and</strong> Miss A LRU(m) < ε<br />
then Miss A Hash(m/ε) < 2ε<br />
10 Nov-05
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